MIPS64: ART Vectorizer

MIPS64 implementation which uses MSA extension. Also extended all
relevant checker tests to test MIPS64 implementation.

Test: booted MIPS64R6 in QEMU
Test: ./testrunner.py --target --optimizing -j1 in QEMU

Change-Id: I8b8a2f601076bca1925e21213db8ed1d41d79b52
diff --git a/compiler/optimizing/code_generator_mips64.cc b/compiler/optimizing/code_generator_mips64.cc
index 0961391..68187ca 100644
--- a/compiler/optimizing/code_generator_mips64.cc
+++ b/compiler/optimizing/code_generator_mips64.cc
@@ -951,7 +951,7 @@
       location_builder_(graph, this),
       instruction_visitor_(graph, this),
       move_resolver_(graph->GetArena(), this),
-      assembler_(graph->GetArena()),
+      assembler_(graph->GetArena(), &isa_features),
       isa_features_(isa_features),
       uint32_literals_(std::less<uint32_t>(),
                        graph->GetArena()->Adapter(kArenaAllocCodeGenerator)),
diff --git a/compiler/optimizing/code_generator_mips64.h b/compiler/optimizing/code_generator_mips64.h
index 8405040..9c6b6f6 100644
--- a/compiler/optimizing/code_generator_mips64.h
+++ b/compiler/optimizing/code_generator_mips64.h
@@ -314,6 +314,9 @@
                                  uint32_t num_entries,
                                  HBasicBlock* switch_block,
                                  HBasicBlock* default_block);
+  int32_t VecAddress(LocationSummary* locations,
+                     size_t size,
+                     /* out */ GpuRegister* adjusted_base);
 
   Mips64Assembler* const assembler_;
   CodeGeneratorMIPS64* const codegen_;
diff --git a/compiler/optimizing/code_generator_vector_mips64.cc b/compiler/optimizing/code_generator_vector_mips64.cc
index 50b95c1..af9e89e 100644
--- a/compiler/optimizing/code_generator_vector_mips64.cc
+++ b/compiler/optimizing/code_generator_vector_mips64.cc
@@ -15,6 +15,7 @@
  */
 
 #include "code_generator_mips64.h"
+#include "mirror/array-inl.h"
 
 namespace art {
 namespace mips64 {
@@ -22,12 +23,72 @@
 // NOLINT on __ macro to suppress wrong warning/fix (misc-macro-parentheses) from clang-tidy.
 #define __ down_cast<Mips64Assembler*>(GetAssembler())->  // NOLINT
 
+VectorRegister VectorRegisterFrom(Location location) {
+  DCHECK(location.IsFpuRegister());
+  return static_cast<VectorRegister>(location.AsFpuRegister<FpuRegister>());
+}
+
 void LocationsBuilderMIPS64::VisitVecReplicateScalar(HVecReplicateScalar* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = new (GetGraph()->GetArena()) LocationSummary(instruction);
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
+      locations->SetInAt(0, Location::RequiresRegister());
+      locations->SetOut(Location::RequiresFpuRegister());
+      break;
+    case Primitive::kPrimFloat:
+    case Primitive::kPrimDouble:
+      locations->SetInAt(0, Location::RequiresFpuRegister());
+      locations->SetOut(Location::RequiresFpuRegister(), Location::kNoOutputOverlap);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecReplicateScalar(HVecReplicateScalar* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ FillB(dst, locations->InAt(0).AsRegister<GpuRegister>());
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ FillH(dst, locations->InAt(0).AsRegister<GpuRegister>());
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FillW(dst, locations->InAt(0).AsRegister<GpuRegister>());
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FillD(dst, locations->InAt(0).AsRegister<GpuRegister>());
+      break;
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ ReplicateFPToVectorRegister(dst,
+                                     locations->InAt(0).AsFpuRegister<FpuRegister>(),
+                                     /* is_double */ false);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ ReplicateFPToVectorRegister(dst,
+                                     locations->InAt(0).AsFpuRegister<FpuRegister>(),
+                                     /* is_double */ true);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecSetScalars(HVecSetScalars* instruction) {
@@ -51,13 +112,23 @@
   LocationSummary* locations = new (arena) LocationSummary(instruction);
   switch (instruction->GetPackedType()) {
     case Primitive::kPrimBoolean:
+      locations->SetInAt(0, Location::RequiresFpuRegister());
+      locations->SetOut(Location::RequiresFpuRegister(),
+                        instruction->IsVecNot() ? Location::kOutputOverlap
+                                                : Location::kNoOutputOverlap);
+      break;
     case Primitive::kPrimByte:
     case Primitive::kPrimChar:
     case Primitive::kPrimShort:
     case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
     case Primitive::kPrimFloat:
     case Primitive::kPrimDouble:
-      DCHECK(locations);
+      locations->SetInAt(0, Location::RequiresFpuRegister());
+      locations->SetOut(Location::RequiresFpuRegister(),
+                        (instruction->IsVecNeg() || instruction->IsVecAbs())
+                            ? Location::kOutputOverlap
+                            : Location::kNoOutputOverlap);
       break;
     default:
       LOG(FATAL) << "Unsupported SIMD type";
@@ -70,7 +141,18 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecCnv(HVecCnv* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister src = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  Primitive::Type from = instruction->GetInputType();
+  Primitive::Type to = instruction->GetResultType();
+  if (from == Primitive::kPrimInt && to == Primitive::kPrimFloat) {
+    DCHECK_EQ(4u, instruction->GetVectorLength());
+    __ Ffint_sW(dst, src);
+  } else {
+    LOG(FATAL) << "Unsupported SIMD type";
+    UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecNeg(HVecNeg* instruction) {
@@ -78,7 +160,45 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecNeg(HVecNeg* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister src = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ FillB(dst, ZERO);
+      __ SubvB(dst, dst, src);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ FillH(dst, ZERO);
+      __ SubvH(dst, dst, src);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FillW(dst, ZERO);
+      __ SubvW(dst, dst, src);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FillD(dst, ZERO);
+      __ SubvD(dst, dst, src);
+      break;
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FillW(dst, ZERO);
+      __ FsubW(dst, dst, src);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FillD(dst, ZERO);
+      __ FsubD(dst, dst, src);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecAbs(HVecAbs* instruction) {
@@ -86,7 +206,47 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecAbs(HVecAbs* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister src = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ FillB(dst, ZERO);       // all zeroes
+      __ Add_aB(dst, dst, src);  // dst = abs(0) + abs(src)
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ FillH(dst, ZERO);       // all zeroes
+      __ Add_aH(dst, dst, src);  // dst = abs(0) + abs(src)
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FillW(dst, ZERO);       // all zeroes
+      __ Add_aW(dst, dst, src);  // dst = abs(0) + abs(src)
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FillD(dst, ZERO);       // all zeroes
+      __ Add_aD(dst, dst, src);  // dst = abs(0) + abs(src)
+      break;
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ LdiW(dst, -1);          // all ones
+      __ SrliW(dst, dst, 1);
+      __ AndV(dst, dst, src);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ LdiD(dst, -1);          // all ones
+      __ SrliD(dst, dst, 1);
+      __ AndV(dst, dst, src);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecNot(HVecNot* instruction) {
@@ -94,7 +254,30 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecNot(HVecNot* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister src = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:  // special case boolean-not
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ LdiB(dst, 1);
+      __ XorV(dst, dst, src);
+      break;
+    case Primitive::kPrimByte:
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
+    case Primitive::kPrimFloat:
+    case Primitive::kPrimDouble:
+      DCHECK_LE(2u, instruction->GetVectorLength());
+      DCHECK_LE(instruction->GetVectorLength(), 16u);
+      __ NorV(dst, src, src);  // lanes do not matter
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 // Helper to set up locations for vector binary operations.
@@ -106,9 +289,12 @@
     case Primitive::kPrimChar:
     case Primitive::kPrimShort:
     case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
     case Primitive::kPrimFloat:
     case Primitive::kPrimDouble:
-      DCHECK(locations);
+      locations->SetInAt(0, Location::RequiresFpuRegister());
+      locations->SetInAt(1, Location::RequiresFpuRegister());
+      locations->SetOut(Location::RequiresFpuRegister(), Location::kNoOutputOverlap);
       break;
     default:
       LOG(FATAL) << "Unsupported SIMD type";
@@ -121,7 +307,40 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecAdd(HVecAdd* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ AddvB(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ AddvH(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ AddvW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ AddvD(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FaddW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FaddD(dst, lhs, rhs);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecHalvingAdd(HVecHalvingAdd* instruction) {
@@ -129,7 +348,40 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecHalvingAdd(HVecHalvingAdd* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      if (instruction->IsUnsigned()) {
+        instruction->IsRounded()
+            ? __ Aver_uB(dst, lhs, rhs)
+            : __ Ave_uB(dst, lhs, rhs);
+      } else {
+        instruction->IsRounded()
+            ? __ Aver_sB(dst, lhs, rhs)
+            : __ Ave_sB(dst, lhs, rhs);
+      }
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      if (instruction->IsUnsigned()) {
+        instruction->IsRounded()
+            ? __ Aver_uH(dst, lhs, rhs)
+            : __ Ave_uH(dst, lhs, rhs);
+      } else {
+        instruction->IsRounded()
+            ? __ Aver_sH(dst, lhs, rhs)
+            : __ Ave_sH(dst, lhs, rhs);
+      }
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecSub(HVecSub* instruction) {
@@ -137,7 +389,40 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecSub(HVecSub* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ SubvB(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ SubvH(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ SubvW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ SubvD(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FsubW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FsubD(dst, lhs, rhs);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecMul(HVecMul* instruction) {
@@ -145,7 +430,40 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecMul(HVecMul* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ MulvB(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ MulvH(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ MulvW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ MulvD(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FmulW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FmulD(dst, lhs, rhs);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecDiv(HVecDiv* instruction) {
@@ -153,7 +471,23 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecDiv(HVecDiv* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ FdivW(dst, lhs, rhs);
+      break;
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ FdivD(dst, lhs, rhs);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecMin(HVecMin* instruction) {
@@ -177,7 +511,27 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecAnd(HVecAnd* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
+    case Primitive::kPrimFloat:
+    case Primitive::kPrimDouble:
+      DCHECK_LE(2u, instruction->GetVectorLength());
+      DCHECK_LE(instruction->GetVectorLength(), 16u);
+      __ AndV(dst, lhs, rhs);  // lanes do not matter
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecAndNot(HVecAndNot* instruction) {
@@ -193,7 +547,27 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecOr(HVecOr* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
+    case Primitive::kPrimFloat:
+    case Primitive::kPrimDouble:
+      DCHECK_LE(2u, instruction->GetVectorLength());
+      DCHECK_LE(instruction->GetVectorLength(), 16u);
+      __ OrV(dst, lhs, rhs);  // lanes do not matter
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecXor(HVecXor* instruction) {
@@ -201,7 +575,27 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecXor(HVecXor* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister rhs = VectorRegisterFrom(locations->InAt(1));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
+    case Primitive::kPrimFloat:
+    case Primitive::kPrimDouble:
+      DCHECK_LE(2u, instruction->GetVectorLength());
+      DCHECK_LE(instruction->GetVectorLength(), 16u);
+      __ XorV(dst, lhs, rhs);  // lanes do not matter
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 // Helper to set up locations for vector shift operations.
@@ -213,7 +607,9 @@
     case Primitive::kPrimShort:
     case Primitive::kPrimInt:
     case Primitive::kPrimLong:
-      DCHECK(locations);
+      locations->SetInAt(0, Location::RequiresFpuRegister());
+      locations->SetInAt(1, Location::ConstantLocation(instruction->InputAt(1)->AsConstant()));
+      locations->SetOut(Location::RequiresFpuRegister(), Location::kNoOutputOverlap);
       break;
     default:
       LOG(FATAL) << "Unsupported SIMD type";
@@ -226,7 +622,32 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecShl(HVecShl* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  int32_t value = locations->InAt(1).GetConstant()->AsIntConstant()->GetValue();
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ SlliB(dst, lhs, value);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ SlliH(dst, lhs, value);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ SlliW(dst, lhs, value);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ SlliD(dst, lhs, value);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecShr(HVecShr* instruction) {
@@ -234,7 +655,32 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecShr(HVecShr* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  int32_t value = locations->InAt(1).GetConstant()->AsIntConstant()->GetValue();
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ SraiB(dst, lhs, value);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ SraiH(dst, lhs, value);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ SraiW(dst, lhs, value);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ SraiD(dst, lhs, value);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecUShr(HVecUShr* instruction) {
@@ -242,7 +688,32 @@
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecUShr(HVecUShr* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  VectorRegister lhs = VectorRegisterFrom(locations->InAt(0));
+  VectorRegister dst = VectorRegisterFrom(locations->Out());
+  int32_t value = locations->InAt(1).GetConstant()->AsIntConstant()->GetValue();
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ SrliB(dst, lhs, value);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ SrliH(dst, lhs, value);
+      break;
+    case Primitive::kPrimInt:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ SrliW(dst, lhs, value);
+      break;
+    case Primitive::kPrimLong:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ SrliD(dst, lhs, value);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecMultiplyAccumulate(HVecMultiplyAccumulate* instr) {
@@ -253,20 +724,143 @@
   LOG(FATAL) << "No SIMD for " << instr->GetId();
 }
 
+// Helper to set up locations for vector memory operations.
+static void CreateVecMemLocations(ArenaAllocator* arena,
+                                  HVecMemoryOperation* instruction,
+                                  bool is_load) {
+  LocationSummary* locations = new (arena) LocationSummary(instruction);
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimInt:
+    case Primitive::kPrimLong:
+    case Primitive::kPrimFloat:
+    case Primitive::kPrimDouble:
+      locations->SetInAt(0, Location::RequiresRegister());
+      locations->SetInAt(1, Location::RegisterOrConstant(instruction->InputAt(1)));
+      if (is_load) {
+        locations->SetOut(Location::RequiresFpuRegister());
+      } else {
+        locations->SetInAt(2, Location::RequiresFpuRegister());
+      }
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
+}
+
+// Helper to prepare register and offset for vector memory operations. Returns the offset and sets
+// the output parameter adjusted_base to the original base or to a reserved temporary register (AT).
+int32_t InstructionCodeGeneratorMIPS64::VecAddress(LocationSummary* locations,
+                                                   size_t size,
+                                                   /* out */ GpuRegister* adjusted_base) {
+  GpuRegister base = locations->InAt(0).AsRegister<GpuRegister>();
+  Location index = locations->InAt(1);
+  int scale = TIMES_1;
+  switch (size) {
+    case 2: scale = TIMES_2; break;
+    case 4: scale = TIMES_4; break;
+    case 8: scale = TIMES_8; break;
+    default: break;
+  }
+  int32_t offset = mirror::Array::DataOffset(size).Int32Value();
+
+  if (index.IsConstant()) {
+    offset += index.GetConstant()->AsIntConstant()->GetValue() << scale;
+    __ AdjustBaseOffsetAndElementSizeShift(base, offset, scale);
+    *adjusted_base = base;
+  } else {
+    GpuRegister index_reg = index.AsRegister<GpuRegister>();
+    if (scale != TIMES_1) {
+      __ Dlsa(AT, index_reg, base, scale);
+    } else {
+      __ Daddu(AT, base, index_reg);
+    }
+    *adjusted_base = AT;
+  }
+  return offset;
+}
+
 void LocationsBuilderMIPS64::VisitVecLoad(HVecLoad* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  CreateVecMemLocations(GetGraph()->GetArena(), instruction, /* is_load */ true);
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecLoad(HVecLoad* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  size_t size = Primitive::ComponentSize(instruction->GetPackedType());
+  VectorRegister reg = VectorRegisterFrom(locations->Out());
+  GpuRegister base;
+  int32_t offset = VecAddress(locations, size, &base);
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ LdB(reg, base, offset);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      // Loading 8-bytes (needed if dealing with compressed strings in StringCharAt) from unaligned
+      // memory address may cause a trap to the kernel if the CPU doesn't directly support unaligned
+      // loads and stores.
+      // TODO: Implement support for StringCharAt.
+      DCHECK(!instruction->IsStringCharAt());
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ LdH(reg, base, offset);
+      break;
+    case Primitive::kPrimInt:
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ LdW(reg, base, offset);
+      break;
+    case Primitive::kPrimLong:
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ LdD(reg, base, offset);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 void LocationsBuilderMIPS64::VisitVecStore(HVecStore* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  CreateVecMemLocations(GetGraph()->GetArena(), instruction, /* is_load */ false);
 }
 
 void InstructionCodeGeneratorMIPS64::VisitVecStore(HVecStore* instruction) {
-  LOG(FATAL) << "No SIMD for " << instruction->GetId();
+  LocationSummary* locations = instruction->GetLocations();
+  size_t size = Primitive::ComponentSize(instruction->GetPackedType());
+  VectorRegister reg = VectorRegisterFrom(locations->InAt(2));
+  GpuRegister base;
+  int32_t offset = VecAddress(locations, size, &base);
+  switch (instruction->GetPackedType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+      DCHECK_EQ(16u, instruction->GetVectorLength());
+      __ StB(reg, base, offset);
+      break;
+    case Primitive::kPrimChar:
+    case Primitive::kPrimShort:
+      DCHECK_EQ(8u, instruction->GetVectorLength());
+      __ StH(reg, base, offset);
+      break;
+    case Primitive::kPrimInt:
+    case Primitive::kPrimFloat:
+      DCHECK_EQ(4u, instruction->GetVectorLength());
+      __ StW(reg, base, offset);
+      break;
+    case Primitive::kPrimLong:
+    case Primitive::kPrimDouble:
+      DCHECK_EQ(2u, instruction->GetVectorLength());
+      __ StD(reg, base, offset);
+      break;
+    default:
+      LOG(FATAL) << "Unsupported SIMD type";
+      UNREACHABLE();
+  }
 }
 
 #undef __
diff --git a/compiler/optimizing/loop_optimization.cc b/compiler/optimizing/loop_optimization.cc
index 94787c9..ae102f7 100644
--- a/compiler/optimizing/loop_optimization.cc
+++ b/compiler/optimizing/loop_optimization.cc
@@ -811,6 +811,11 @@
     }
     return true;
   } else if (instruction->IsArrayGet()) {
+    // Deal with vector restrictions.
+    if (instruction->AsArrayGet()->IsStringCharAt() &&
+        HasVectorRestrictions(restrictions, kNoStringCharAt)) {
+      return false;
+    }
     // Accept a right-hand-side array base[index] for
     // (1) exact matching vector type,
     // (2) loop-invariant base,
@@ -1072,9 +1077,36 @@
       }
       return false;
     case kMips:
-    case kMips64:
       // TODO: implement MIPS SIMD.
       return false;
+    case kMips64:
+      if (features->AsMips64InstructionSetFeatures()->HasMsa()) {
+        switch (type) {
+          case Primitive::kPrimBoolean:
+          case Primitive::kPrimByte:
+            *restrictions |= kNoDiv | kNoMinMax;
+            return TrySetVectorLength(16);
+          case Primitive::kPrimChar:
+          case Primitive::kPrimShort:
+            *restrictions |= kNoDiv | kNoMinMax | kNoStringCharAt;
+            return TrySetVectorLength(8);
+          case Primitive::kPrimInt:
+            *restrictions |= kNoDiv | kNoMinMax;
+            return TrySetVectorLength(4);
+          case Primitive::kPrimLong:
+            *restrictions |= kNoDiv | kNoMinMax;
+            return TrySetVectorLength(2);
+          case Primitive::kPrimFloat:
+            *restrictions |= kNoMinMax;
+            return TrySetVectorLength(4);
+          case Primitive::kPrimDouble:
+            *restrictions |= kNoMinMax;
+            return TrySetVectorLength(2);
+          default:
+            break;
+        }  // switch type
+      }
+      return false;
     default:
       return false;
   }  // switch instruction set
diff --git a/compiler/optimizing/loop_optimization.h b/compiler/optimizing/loop_optimization.h
index 35298d4..75a42f3 100644
--- a/compiler/optimizing/loop_optimization.h
+++ b/compiler/optimizing/loop_optimization.h
@@ -72,6 +72,7 @@
     kNoUnroundedHAdd = 64,   // no unrounded halving add
     kNoAbs           = 128,  // no absolute value
     kNoMinMax        = 256,  // no min/max
+    kNoStringCharAt  = 512,  // no StringCharAt
   };
 
   /*
diff --git a/compiler/utils/mips64/assembler_mips64.cc b/compiler/utils/mips64/assembler_mips64.cc
index c03b98c..b8b800a 100644
--- a/compiler/utils/mips64/assembler_mips64.cc
+++ b/compiler/utils/mips64/assembler_mips64.cc
@@ -1795,6 +1795,17 @@
   EmitMsa3R(0x5, 0x3, wt, ws, wd, 0x14);
 }
 
+void Mips64Assembler::ReplicateFPToVectorRegister(VectorRegister dst,
+                                                  FpuRegister src,
+                                                  bool is_double) {
+  // Float or double in FPU register Fx can be considered as 0th element in vector register Wx.
+  if (is_double) {
+    SplatiD(dst, static_cast<VectorRegister>(src), 0);
+  } else {
+    SplatiW(dst, static_cast<VectorRegister>(src), 0);
+  }
+}
+
 void Mips64Assembler::LoadConst32(GpuRegister rd, int32_t value) {
   TemplateLoadConst32(this, rd, value);
 }
diff --git a/compiler/utils/mips64/assembler_mips64.h b/compiler/utils/mips64/assembler_mips64.h
index c92cf4c..9b40645 100644
--- a/compiler/utils/mips64/assembler_mips64.h
+++ b/compiler/utils/mips64/assembler_mips64.h
@@ -774,6 +774,9 @@
   void IlvrW(VectorRegister wd, VectorRegister ws, VectorRegister wt);
   void IlvrD(VectorRegister wd, VectorRegister ws, VectorRegister wt);
 
+  // Helper for replicating floating point value in all destination elements.
+  void ReplicateFPToVectorRegister(VectorRegister dst, FpuRegister src, bool is_double);
+
   // Higher level composite instructions.
   int InstrCountForLoadReplicatedConst32(int64_t);
   void LoadConst32(GpuRegister rd, int32_t value);
diff --git a/test/623-checker-loop-regressions/src/Main.java b/test/623-checker-loop-regressions/src/Main.java
index 3a2145bf..af205b0 100644
--- a/test/623-checker-loop-regressions/src/Main.java
+++ b/test/623-checker-loop-regressions/src/Main.java
@@ -291,6 +291,9 @@
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   //
   // NOTE: should correctly deal with compressed and uncompressed cases.
+  //
+  /// CHECK-START-MIPS64: void Main.string2Bytes(char[], java.lang.String) loop_optimization (after)
+  /// CHECK-NOT: VecLoad
   private static void string2Bytes(char[] a, String b) {
     int min = Math.min(a.length, b.length());
     for (int i = 0; i < min; i++) {
@@ -333,6 +336,13 @@
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<Repl>>] loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<Repl>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.oneBoth(short[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<One:i\d+>>  IntConstant 1                        loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<One>>]         loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<Repl>>] loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<Repl>>] loop:<<Loop>>      outer_loop:none
+  //
   // Bug b/37764324: integral same-length packed types can be mixed freely.
   private static void oneBoth(short[] a, char[] b) {
     for (int i = 0; i < Math.min(a.length, b.length); i++) {
@@ -372,6 +382,19 @@
   /// CHECK-DAG: <<Cnv:b\d+>>  TypeConversion [<<Add>>]              loop:<<Loop2>>      outer_loop:none
   /// CHECK-DAG:               ArraySet [{{l\d+}},<<Phi2>>,<<Cnv>>]  loop:<<Loop2>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.typeConv(byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<One:i\d+>>  IntConstant 1                         loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<One>>]          loop:none
+  /// CHECK-DAG: <<Phi1:i\d+>> Phi                                   loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Load:d\d+>> VecLoad [{{l\d+}},<<Phi1>>]           loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: <<Vadd:d\d+>> VecAdd [<<Load>>,<<Repl>>]            loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi1>>,<<Vadd>>] loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: <<Phi2:i\d+>> Phi                                   loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:b\d+>>  ArrayGet [{{l\d+}},<<Phi2>>]          loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: <<Add:i\d+>>  Add [<<Get>>,<<One>>]                 loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: <<Cnv:b\d+>>  TypeConversion [<<Add>>]              loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG:               ArraySet [{{l\d+}},<<Phi2>>,<<Cnv>>]  loop:<<Loop2>>      outer_loop:none
+  //
   // Scalar code in cleanup loop uses correct byte type on array get and type conversion.
   private static void typeConv(byte[] a, byte[] b) {
     int len = Math.min(a.length, b.length);
diff --git a/test/640-checker-boolean-simd/src/Main.java b/test/640-checker-boolean-simd/src/Main.java
index f8239fa..64b76f8 100644
--- a/test/640-checker-boolean-simd/src/Main.java
+++ b/test/640-checker-boolean-simd/src/Main.java
@@ -35,6 +35,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAnd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.and(boolean) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAnd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void and(boolean x) {
     for (int i = 0; i < 128; i++)
       a[i] &= x;  // NOTE: bitwise and, not the common &&
@@ -50,6 +56,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecOr    loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.or(boolean) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecOr    loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void or(boolean x) {
     for (int i = 0; i < 128; i++)
       a[i] |= x;  // NOTE: bitwise or, not the common ||
@@ -65,6 +77,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecXor   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.xor(boolean) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecXor   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void xor(boolean x) {
     for (int i = 0; i < 128; i++)
       a[i] ^= x;  // NOTE: bitwise xor
@@ -80,6 +98,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.not() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void not() {
     for (int i = 0; i < 128; i++)
       a[i] = !a[i];
diff --git a/test/640-checker-byte-simd/src/Main.java b/test/640-checker-byte-simd/src/Main.java
index 21d71e8..283c2c9 100644
--- a/test/640-checker-byte-simd/src/Main.java
+++ b/test/640-checker-byte-simd/src/Main.java
@@ -35,6 +35,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(int x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -50,6 +56,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(int x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -65,6 +77,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.mul(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void mul(int x) {
     for (int i = 0; i < 128; i++)
       a[i] *= x;
@@ -94,6 +112,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = (byte) -a[i];
@@ -109,6 +133,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.not() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void not() {
     for (int i = 0; i < 128; i++)
       a[i] = (byte) ~a[i];
@@ -124,6 +154,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shl4() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shl4() {
     for (int i = 0; i < 128; i++)
       a[i] <<= 4;
@@ -139,6 +175,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sar2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sar2() {
     for (int i = 0; i < 128; i++)
       a[i] >>= 2;
diff --git a/test/640-checker-char-simd/src/Main.java b/test/640-checker-char-simd/src/Main.java
index 89d4b6b..dd879b4 100644
--- a/test/640-checker-char-simd/src/Main.java
+++ b/test/640-checker-char-simd/src/Main.java
@@ -35,6 +35,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(int x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -50,6 +56,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(int x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -65,6 +77,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.mul(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void mul(int x) {
     for (int i = 0; i < 128; i++)
       a[i] *= x;
@@ -94,6 +112,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = (char) -a[i];
@@ -109,6 +133,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.not() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void not() {
     for (int i = 0; i < 128; i++)
       a[i] = (char) ~a[i];
@@ -124,6 +154,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shl4() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shl4() {
     for (int i = 0; i < 128; i++)
       a[i] <<= 4;
@@ -152,6 +188,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecUShr  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecUShr  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shr2() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= 2;
diff --git a/test/640-checker-double-simd/src/Main.java b/test/640-checker-double-simd/src/Main.java
index 5709b5d..f7492d5 100644
--- a/test/640-checker-double-simd/src/Main.java
+++ b/test/640-checker-double-simd/src/Main.java
@@ -36,6 +36,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(double) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(double x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -51,6 +57,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(double) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(double x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -66,6 +78,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.mul(double) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void mul(double x) {
     for (int i = 0; i < 128; i++)
       a[i] *= x;
@@ -81,6 +99,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecDiv   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.div(double) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecDiv   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void div(double x) {
     for (int i = 0; i < 128; i++)
       a[i] /= x;
@@ -96,6 +120,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = -a[i];
@@ -111,6 +141,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAbs   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.abs() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAbs   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void abs() {
     for (int i = 0; i < 128; i++)
       a[i] = Math.abs(a[i]);
@@ -125,6 +161,10 @@
   /// CHECK-NOT: VecLoad
   /// CHECK-NOT: VecStore
   //
+  /// CHECK-START-MIPS64: void Main.conv(long[]) loop_optimization (after)
+  /// CHECK-NOT: VecLoad
+  /// CHECK-NOT: VecStore
+  //
   // TODO: fill in when long2double is supported
   static void conv(long[] b) {
     for (int i = 0; i < 128; i++)
diff --git a/test/640-checker-float-simd/src/Main.java b/test/640-checker-float-simd/src/Main.java
index 4bcb7e2..4fe9675 100644
--- a/test/640-checker-float-simd/src/Main.java
+++ b/test/640-checker-float-simd/src/Main.java
@@ -36,6 +36,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(float) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(float x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -51,6 +57,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(float) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(float x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -66,6 +78,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.mul(float) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void mul(float x) {
     for (int i = 0; i < 128; i++)
       a[i] *= x;
@@ -81,6 +99,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecDiv   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.div(float) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecDiv   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void div(float x) {
     for (int i = 0; i < 128; i++)
       a[i] /= x;
@@ -96,6 +120,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = -a[i];
@@ -106,6 +136,12 @@
   /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.abs() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAbs   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
   /// CHECK-START-ARM64: void Main.abs() loop_optimization (after)
   /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
@@ -126,6 +162,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecCnv   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.conv(int[]) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecCnv   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void conv(int[] b) {
     for (int i = 0; i < 128; i++)
       a[i] = b[i];
diff --git a/test/640-checker-int-simd/src/Main.java b/test/640-checker-int-simd/src/Main.java
index 9ee553c..9abf60d 100644
--- a/test/640-checker-int-simd/src/Main.java
+++ b/test/640-checker-int-simd/src/Main.java
@@ -35,6 +35,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(int x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -50,6 +56,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(int x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -65,6 +77,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.mul(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void mul(int x) {
     for (int i = 0; i < 128; i++)
       a[i] *= x;
@@ -95,6 +113,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = -a[i];
@@ -110,6 +134,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+   //
+  /// CHECK-START-MIPS64: void Main.not() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void not() {
     for (int i = 0; i < 128; i++)
       a[i] = ~a[i];
@@ -125,6 +155,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+   //
+  /// CHECK-START-MIPS64: void Main.shl4() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shl4() {
     for (int i = 0; i < 128; i++)
       a[i] <<= 4;
@@ -134,12 +170,18 @@
   /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
   /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
-  //
+   //
   /// CHECK-START-ARM64: void Main.sar2() loop_optimization (after)
   /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sar2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sar2() {
     for (int i = 0; i < 128; i++)
       a[i] >>= 2;
@@ -155,6 +197,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecUShr  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecUShr  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shr2() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= 2;
@@ -185,6 +233,11 @@
   /// CHECK-DAG: <<Phi:i\d+>> Phi                                 loop:<<Loop:B\d+>> outer_loop:none
   /// CHECK-DAG: <<Get:d\d+>> VecLoad                             loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:              VecStore [{{l\d+}},<<Phi>>,<<Get>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr32() loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>> Phi                                 loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>> VecLoad                             loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:              VecStore [{{l\d+}},<<Phi>>,<<Get>>] loop:<<Loop>>      outer_loop:none
   static void shr32() {
     // TODO: remove a[i] = a[i] altogether?
     for (int i = 0; i < 128; i++)
@@ -211,6 +264,13 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr33() loop_optimization (after)
+  /// CHECK-DAG: <<Dist:i\d+>> IntConstant 1                        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
   static void shr33() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= $opt$inline$IntConstant33();  // 1, since & 31
@@ -236,6 +296,13 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shrMinus254() loop_optimization (after)
+  /// CHECK-DAG: <<Dist:i\d+>> IntConstant 2                         loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
   static void shrMinus254() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= $opt$inline$IntConstantMinus254();  // 2, since & 31
diff --git a/test/640-checker-long-simd/src/Main.java b/test/640-checker-long-simd/src/Main.java
index 8f6af9d..05dcae6 100644
--- a/test/640-checker-long-simd/src/Main.java
+++ b/test/640-checker-long-simd/src/Main.java
@@ -35,6 +35,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(long) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(long x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -50,6 +56,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(long) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(long x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -60,6 +72,12 @@
   /// CHECK-DAG: ArrayGet loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: ArraySet loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.mul(long) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
   //  Not supported for longs.
   /// CHECK-START-ARM64: void Main.mul(long) loop_optimization (after)
   /// CHECK-NOT: VecMul
@@ -93,6 +111,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = -a[i];
@@ -108,6 +132,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.not() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void not() {
     for (int i = 0; i < 128; i++)
       a[i] = ~a[i];
@@ -123,6 +153,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shl4() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shl4() {
     for (int i = 0; i < 128; i++)
       a[i] <<= 4;
@@ -138,6 +174,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sar2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sar2() {
     for (int i = 0; i < 128; i++)
       a[i] >>= 2;
@@ -153,6 +195,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecUShr  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecUShr  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shr2() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= 2;
@@ -183,6 +231,11 @@
   /// CHECK-DAG: <<Phi:i\d+>> Phi                                 loop:<<Loop:B\d+>> outer_loop:none
   /// CHECK-DAG: <<Get:d\d+>> VecLoad                             loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:              VecStore [{{l\d+}},<<Phi>>,<<Get>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr64() loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>> Phi                                 loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>> VecLoad                             loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:              VecStore [{{l\d+}},<<Phi>>,<<Get>>] loop:<<Loop>>      outer_loop:none
   static void shr64() {
     // TODO: remove a[i] = a[i] altogether?
     for (int i = 0; i < 128; i++)
@@ -209,6 +262,13 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shr65() loop_optimization (after)
+  /// CHECK-DAG: <<Dist:i\d+>> IntConstant 1                        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
   static void shr65() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= $opt$inline$IntConstant65();  // 1, since & 63
@@ -234,6 +294,13 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shrMinus254() loop_optimization (after)
+  /// CHECK-DAG: <<Dist:i\d+>> IntConstant 2                        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<UShr:d\d+>> VecUShr [<<Get>>,<<Dist>>]           loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<UShr>>] loop:<<Loop>>      outer_loop:none
   static void shrMinus254() {
     for (int i = 0; i < 128; i++)
       a[i] >>>= $opt$inline$IntConstantMinus254();  // 2, since & 63
diff --git a/test/640-checker-short-simd/src/Main.java b/test/640-checker-short-simd/src/Main.java
index f62c726..4cca837 100644
--- a/test/640-checker-short-simd/src/Main.java
+++ b/test/640-checker-short-simd/src/Main.java
@@ -35,6 +35,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.add(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecAdd   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void add(int x) {
     for (int i = 0; i < 128; i++)
       a[i] += x;
@@ -50,6 +56,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sub(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecSub   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sub(int x) {
     for (int i = 0; i < 128; i++)
       a[i] -= x;
@@ -65,6 +77,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.mul(int) loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecMul   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void mul(int x) {
     for (int i = 0; i < 128; i++)
       a[i] *= x;
@@ -94,6 +112,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.neg() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNeg   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void neg() {
     for (int i = 0; i < 128; i++)
       a[i] = (short) -a[i];
@@ -109,6 +133,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.not() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecNot   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void not() {
     for (int i = 0; i < 128; i++)
       a[i] = (short) ~a[i];
@@ -124,6 +154,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.shl4() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShl   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void shl4() {
     for (int i = 0; i < 128; i++)
       a[i] <<= 4;
@@ -139,6 +175,12 @@
   /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.sar2() loop_optimization (after)
+  /// CHECK-DAG: Phi      loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad  loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecShr   loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: VecStore loop:<<Loop>>      outer_loop:none
   static void sar2() {
     for (int i = 0; i < 128; i++)
       a[i] >>= 2;
diff --git a/test/645-checker-abs-simd/src/Main.java b/test/645-checker-abs-simd/src/Main.java
index 5a63d9f..9714a46 100644
--- a/test/645-checker-abs-simd/src/Main.java
+++ b/test/645-checker-abs-simd/src/Main.java
@@ -39,6 +39,18 @@
   /// CHECK-DAG: ArraySet                                  loop:<<Loop2>>      outer_loop:none
   //
   /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
+  //
+  /// CHECK-START-MIPS64: void Main.doitByte(byte[]) loop_optimization (after)
+  /// CHECK-DAG: Phi                                       loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad                                   loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecAbs                                    loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecStore                                  loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: Phi                                       loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: ArrayGet                                  loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: InvokeStaticOrDirect intrinsic:MathAbsInt loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: ArraySet                                  loop:<<Loop2>>      outer_loop:none
+  //
+  /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
   private static void doitByte(byte[] x) {
     for (int i = 0; i < x.length; i++) {
       x[i] = (byte) Math.abs(x[i]);
@@ -77,6 +89,18 @@
   /// CHECK-DAG: ArraySet                                  loop:<<Loop2>>      outer_loop:none
   //
   /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
+  //
+  /// CHECK-START-MIPS64: void Main.doitShort(short[]) loop_optimization (after)
+  /// CHECK-DAG: Phi                                       loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad                                   loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecAbs                                    loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecStore                                  loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: Phi                                       loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: ArrayGet                                  loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: InvokeStaticOrDirect intrinsic:MathAbsInt loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: ArraySet                                  loop:<<Loop2>>      outer_loop:none
+  //
+  /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
   private static void doitShort(short[] x) {
     for (int i = 0; i < x.length; i++) {
       x[i] = (short) Math.abs(x[i]);
@@ -100,6 +124,18 @@
   /// CHECK-DAG: ArraySet                                  loop:<<Loop2>>      outer_loop:none
   //
   /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
+  //
+  /// CHECK-START-MIPS64: void Main.doitInt(int[]) loop_optimization (after)
+  /// CHECK-DAG: Phi                                       loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad                                   loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecAbs                                    loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecStore                                  loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: Phi                                       loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: ArrayGet                                  loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: InvokeStaticOrDirect intrinsic:MathAbsInt loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: ArraySet                                  loop:<<Loop2>>      outer_loop:none
+  //
+  /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
   private static void doitInt(int[] x) {
     for (int i = 0; i < x.length; i++) {
       x[i] = Math.abs(x[i]);
@@ -123,6 +159,18 @@
   /// CHECK-DAG: ArraySet                                   loop:<<Loop2>>      outer_loop:none
   //
   /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
+  //
+  /// CHECK-START-MIPS64: void Main.doitLong(long[]) loop_optimization (after)
+  /// CHECK-DAG: Phi                                        loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad                                    loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecAbs                                     loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecStore                                   loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: Phi                                        loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: ArrayGet                                   loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: InvokeStaticOrDirect intrinsic:MathAbsLong loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: ArraySet                                   loop:<<Loop2>>      outer_loop:none
+  //
+  /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
   private static void doitLong(long[] x) {
     for (int i = 0; i < x.length; i++) {
       x[i] = Math.abs(x[i]);
@@ -146,6 +194,18 @@
   /// CHECK-DAG: ArraySet                                    loop:<<Loop2>>      outer_loop:none
   //
   /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
+  //
+  /// CHECK-START-MIPS64: void Main.doitFloat(float[]) loop_optimization (after)
+  /// CHECK-DAG: Phi                                         loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad                                     loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecAbs                                      loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecStore                                    loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: Phi                                         loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: ArrayGet                                    loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: InvokeStaticOrDirect intrinsic:MathAbsFloat loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: ArraySet                                    loop:<<Loop2>>      outer_loop:none
+  //
+  /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
   private static void doitFloat(float[] x) {
     for (int i = 0; i < x.length; i++) {
       x[i] = Math.abs(x[i]);
@@ -169,6 +229,18 @@
   /// CHECK-DAG: ArraySet                                     loop:<<Loop2>>      outer_loop:none
   //
   /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
+  //
+  /// CHECK-START-MIPS64: void Main.doitDouble(double[]) loop_optimization (after)
+  /// CHECK-DAG: Phi                                          loop:<<Loop1:B\d+>> outer_loop:none
+  /// CHECK-DAG: VecLoad                                      loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecAbs                                       loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: VecStore                                     loop:<<Loop1>>      outer_loop:none
+  /// CHECK-DAG: Phi                                          loop:<<Loop2:B\d+>> outer_loop:none
+  /// CHECK-DAG: ArrayGet                                     loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: InvokeStaticOrDirect intrinsic:MathAbsDouble loop:<<Loop2>>      outer_loop:none
+  /// CHECK-DAG: ArraySet                                     loop:<<Loop2>>      outer_loop:none
+  //
+  /// CHECK-EVAL: "<<Loop1>>" != "<<Loop2>>"
   private static void doitDouble(double[] x) {
     for (int i = 0; i < x.length; i++) {
       x[i] = Math.abs(x[i]);
diff --git a/test/646-checker-hadd-alt-byte/src/Main.java b/test/646-checker-hadd-alt-byte/src/Main.java
index d1b33ea..9cc6828 100644
--- a/test/646-checker-hadd-alt-byte/src/Main.java
+++ b/test/646-checker-hadd-alt-byte/src/Main.java
@@ -45,6 +45,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -71,6 +78,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -95,6 +109,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_signed(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_signed(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -122,6 +143,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>]  unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>]  unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -146,6 +174,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed_constant(byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<I127:i\d+>> IntConstant 127                      loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<I127>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed_constant(byte[] b1, byte[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
@@ -171,6 +207,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned_constant(byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<I255:i\d+>> IntConstant 255                      loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<I255>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned_constant(byte[] b1, byte[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
diff --git a/test/646-checker-hadd-alt-char/src/Main.java b/test/646-checker-hadd-alt-char/src/Main.java
index 1ea8d3f..3f81299 100644
--- a/test/646-checker-hadd-alt-char/src/Main.java
+++ b/test/646-checker-hadd-alt-char/src/Main.java
@@ -45,6 +45,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned(char[] b1, char[] b2, char[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -72,6 +79,13 @@
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.halving_add_also_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
   // Note: HAnd has no impact (already a zero extension).
   //
   private static void halving_add_also_unsigned(char[] b1, char[] b2, char[] bo) {
@@ -98,6 +112,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned(char[] b1, char[] b2, char[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -126,6 +147,13 @@
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_also_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
   // Note: HAnd has no impact (already a zero extension).
   //
   private static void rounding_halving_add_also_unsigned(char[] b1, char[] b2, char[] bo) {
@@ -152,6 +180,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned_constant(char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<UMAX:i\d+>> IntConstant 65535                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<UMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned_constant(char[] b1, char[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
@@ -178,6 +214,14 @@
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.halving_add_also_unsigned_constant(char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<UMAX:i\d+>> IntConstant 65535                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<UMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
   // Note: HAnd has no impact (already a zero extension).
   //
   private static void halving_add_also_unsigned_constant(char[] b1, char[] bo) {
diff --git a/test/646-checker-hadd-alt-short/src/Main.java b/test/646-checker-hadd-alt-short/src/Main.java
index 269e618..150626c 100644
--- a/test/646-checker-hadd-alt-short/src/Main.java
+++ b/test/646-checker-hadd-alt-short/src/Main.java
@@ -45,6 +45,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -71,6 +78,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -95,6 +109,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_signed(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_signed(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -122,6 +143,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -146,6 +174,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed_constant(short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<SMAX:i\d+>> IntConstant 32767                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<SMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed_constant(short[] b1, short[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
@@ -171,6 +207,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned_constant(short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<UMAX:i\d+>> IntConstant 65535                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<UMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned_constant(short[] b1, short[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
diff --git a/test/646-checker-hadd-byte/src/Main.java b/test/646-checker-hadd-byte/src/Main.java
index 7e29a7e..5a615a4 100644
--- a/test/646-checker-hadd-byte/src/Main.java
+++ b/test/646-checker-hadd-byte/src/Main.java
@@ -42,6 +42,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -68,6 +75,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -92,6 +106,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_signed(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_signed(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -119,6 +140,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>]  unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned(byte[], byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>]  unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned(byte[] b1, byte[] b2, byte[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -143,6 +171,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed_constant(byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<I127:i\d+>> IntConstant 127                      loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<I127>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed_constant(byte[] b1, byte[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
@@ -168,6 +204,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned_constant(byte[], byte[]) loop_optimization (after)
+  /// CHECK-DAG: <<I255:i\d+>> IntConstant 255                      loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<I255>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned_constant(byte[] b1, byte[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
diff --git a/test/646-checker-hadd-char/src/Main.java b/test/646-checker-hadd-char/src/Main.java
index d24608f..bb8a01f 100644
--- a/test/646-checker-hadd-char/src/Main.java
+++ b/test/646-checker-hadd-char/src/Main.java
@@ -42,6 +42,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned(char[] b1, char[] b2, char[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -69,6 +76,13 @@
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.halving_add_also_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
   // Note: HAnd has no impact (already a zero extension).
   //
   private static void halving_add_also_unsigned(char[] b1, char[] b2, char[] bo) {
@@ -95,6 +109,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned(char[] b1, char[] b2, char[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -123,6 +144,13 @@
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_also_unsigned(char[], char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
   // Note: HAnd has no impact (already a zero extension).
   //
   private static void rounding_halving_add_also_unsigned(char[] b1, char[] b2, char[] bo) {
@@ -149,6 +177,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned_constant(char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<UMAX:i\d+>> IntConstant 65535                   loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<UMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned_constant(char[] b1, char[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
@@ -175,6 +211,14 @@
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   //
+  /// CHECK-START-MIPS64: void Main.halving_add_also_unsigned_constant(char[], char[]) loop_optimization (after)
+  /// CHECK-DAG: <<UMAX:i\d+>> IntConstant 65535                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<UMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
   // Note: HAnd has no impact (already a zero extension).
   //
   private static void halving_add_also_unsigned_constant(char[] b1, char[] bo) {
diff --git a/test/646-checker-hadd-short/src/Main.java b/test/646-checker-hadd-short/src/Main.java
index 4e6b4bd..07845a6 100644
--- a/test/646-checker-hadd-short/src/Main.java
+++ b/test/646-checker-hadd-short/src/Main.java
@@ -42,6 +42,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -69,6 +76,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed_alt(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed_alt(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -96,6 +110,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -120,6 +141,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_signed(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_signed(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -144,6 +172,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_signed_alt(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_signed_alt(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -172,6 +207,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_signed_alt2(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:false rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_signed_alt2(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -200,6 +242,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -227,6 +276,13 @@
   /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.rounding_halving_add_unsigned_alt(short[], short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get1:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<Get2:d\d+>> VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get1>>,<<Get2>>] unsigned:true rounded:true loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void rounding_halving_add_unsigned_alt(short[] b1, short[] b2, short[] bo) {
     int min_length = Math.min(bo.length, Math.min(b1.length, b2.length));
     for (int i = 0; i < min_length; i++) {
@@ -252,6 +308,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_signed_constant(short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<SMAX:i\d+>> IntConstant 32767                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<SMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:false rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_signed_constant(short[] b1, short[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {
@@ -277,6 +341,14 @@
   /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
   /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
   /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
+  //
+  /// CHECK-START-MIPS64: void Main.halving_add_unsigned_constant(short[], short[]) loop_optimization (after)
+  /// CHECK-DAG: <<UMAX:i\d+>> IntConstant 65535                    loop:none
+  /// CHECK-DAG: <<Repl:d\d+>> VecReplicateScalar [<<UMAX>>]        loop:none
+  /// CHECK-DAG: <<Phi:i\d+>>  Phi                                  loop:<<Loop:B\d+>> outer_loop:none
+  /// CHECK-DAG: <<Get:d\d+>>  VecLoad                              loop:<<Loop>>      outer_loop:none
+  /// CHECK-DAG: <<HAdd:d\d+>> VecHalvingAdd [<<Get>>,<<Repl>>] unsigned:true rounded:false loop:<<Loop>> outer_loop:none
+  /// CHECK-DAG:               VecStore [{{l\d+}},<<Phi>>,<<HAdd>>] loop:<<Loop>>      outer_loop:none
   private static void halving_add_unsigned_constant(short[] b1, short[] bo) {
     int min_length = Math.min(bo.length, b1.length);
     for (int i = 0; i < min_length; i++) {