Clean up after introducing `HRol`.

Clean up after
    https://android-review.googlesource.com/3262277 .

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: I11d3b2ffd2305a841fa44345b7d2bd09de21b42d

5 files changed, 17 insertions, 35 deletions

diff --git a/compiler/optimizing/code_generator_arm_vixl.cc b/compiler/optimizing/code_generator_arm_vixl.cc
index 34b3aad3d4..e88d14b3eb 100644
--- a/compiler/optimizing/code_generator_arm_vixl.cc
+++ b/compiler/optimizing/code_generator_arm_vixl.cc
@@ -5291,11 +5291,11 @@ void InstructionCodeGeneratorARMVIXL::HandleIntegerRotate(HBinaryOperation* rota
     // Arm32 and Thumb2 assemblers require a rotation on the interval [1,31],
     // so map all rotations to a +ve. equivalent in that range.
     // (e.g. left *or* right by -2 bits == 30 bits in the same direction.)
-    uint32_t rot = CodeGenerator::GetInt32ValueOf(rhs.GetConstant()) & 0x1F;
-
+    uint32_t rot = CodeGenerator::GetInt32ValueOf(rhs.GetConstant());
     if (rotate->IsRol()) {
       rot = -rot;
     }
+    rot &= 0x1f;
 
     if (rot) {
       // Rotate, mapping left rotations to right equivalents if necessary.
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index d0368be866..6db49c7771 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -5125,13 +5125,14 @@ void InstructionCodeGeneratorX86::HandleRotate(HBinaryOperation* rotate) {
     Register second_reg = second.AsRegister<Register>();
     DCHECK_EQ(second_reg, ECX);
 
+    __ movl(temp_reg, first_reg_hi);
     if (rotate->IsRol()) {
-      __ negl(second_reg);
+      __ shld(first_reg_hi, first_reg_lo, second_reg);
+      __ shld(first_reg_lo, temp_reg, second_reg);
+    } else {
+      __ shrd(first_reg_hi, first_reg_lo, second_reg);
+      __ shrd(first_reg_lo, temp_reg, second_reg);
     }
-
-    __ movl(temp_reg, first_reg_hi);
-    __ shrd(first_reg_hi, first_reg_lo, second_reg);
-    __ shrd(first_reg_lo, temp_reg, second_reg);
     __ movl(temp_reg, first_reg_hi);
     __ testl(second_reg, Immediate(32));
     __ cmovl(kNotEqual, first_reg_hi, first_reg_lo);
diff --git a/compiler/optimizing/code_generator_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 6d3acedb5d..e9593d6c98 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -5122,11 +5122,11 @@ void InstructionCodeGeneratorX86_64::HandleRotate(HBinaryOperation* rotate) {
   }
 }
 
-void InstructionCodeGeneratorX86_64::VisitRor(HRor* ror) {
-  HandleRotate(ror);
+void LocationsBuilderX86_64::VisitRol(HRol* rol) {
+  HandleRotate(rol);
 }
 
-void LocationsBuilderX86_64::VisitRol(HRol* rol) {
+void InstructionCodeGeneratorX86_64::VisitRol(HRol* rol) {
   HandleRotate(rol);
 }
 
@@ -5134,8 +5134,8 @@ void LocationsBuilderX86_64::VisitRor(HRor* ror) {
   HandleRotate(ror);
 }
 
-void InstructionCodeGeneratorX86_64::VisitRol(HRol* rol) {
-  HandleRotate(rol);
+void InstructionCodeGeneratorX86_64::VisitRor(HRor* ror) {
+  HandleRotate(ror);
 }
 
 void LocationsBuilderX86_64::VisitShl(HShl* shl) {
diff --git a/compiler/optimizing/instruction_simplifier_shared.cc b/compiler/optimizing/instruction_simplifier_shared.cc
index 7f575c0348..2215b93414 100644
--- a/compiler/optimizing/instruction_simplifier_shared.cc
+++ b/compiler/optimizing/instruction_simplifier_shared.cc
@@ -320,18 +320,15 @@ void UnfoldRotateLeft(HRol* rol) {
   HBasicBlock* block = rol->GetBlock();
   HGraph* graph = block->GetGraph();
   ArenaAllocator* allocator = graph->GetAllocator();
-  HRor* ror;
-
+  HInstruction* neg;
   if (rol->GetRight()->IsConstant()) {
     int32_t value = rol->GetRight()->AsIntConstant()->GetValue();
-    HIntConstant* negated = graph->GetIntConstant(-value);
-    ror = new (allocator) HRor(rol->GetType(), rol->GetLeft(), negated);
+    neg = graph->GetIntConstant(-value);
   } else {
-    HNeg* neg = new (allocator) HNeg(DataType::Type::kInt32, rol->GetRight());
+    neg = new (allocator) HNeg(DataType::Type::kInt32, rol->GetRight());
     block->InsertInstructionBefore(neg, rol);
-    ror = new (allocator) HRor(rol->GetType(), rol->GetLeft(), neg);
   }
-
+  HInstruction* ror = new (allocator) HRor(rol->GetType(), rol->GetLeft(), neg);
   block->ReplaceAndRemoveInstructionWith(rol, ror);
 }
 
diff --git a/compiler/optimizing/instruction_simplifier_x86.cc b/compiler/optimizing/instruction_simplifier_x86.cc
index e1c783e5b8..9b5fb52509 100644
--- a/compiler/optimizing/instruction_simplifier_x86.cc
+++ b/compiler/optimizing/instruction_simplifier_x86.cc
@@ -48,7 +48,6 @@ class InstructionSimplifierX86Visitor final : public HGraphVisitor {
   }
 
   void VisitAnd(HAnd * instruction) override;
-  void VisitRol(HRol* instruction) override;
   void VisitXor(HXor* instruction) override;
 
  private:
@@ -71,21 +70,6 @@ void InstructionSimplifierX86Visitor::VisitAnd(HAnd* instruction) {
   }
 }
 
-void InstructionSimplifierX86Visitor::VisitRol(HRol* rol) {
-  if (rol->GetType() != DataType::Type::kInt64) {
-    return;
-  }
-
-  HBasicBlock* block = rol->GetBlock();
-  HGraph* graph = block->GetGraph();
-  ArenaAllocator* allocator = graph->GetAllocator();
-
-  HNeg* neg = new (allocator) HNeg(DataType::Type::kInt32, rol->GetRight());
-  block->InsertInstructionBefore(neg, rol);
-  HRor* ror = new (allocator) HRor(rol->GetType(), rol->GetLeft(), neg);
-  block->ReplaceAndRemoveInstructionWith(rol, ror);
-}
-
 void InstructionSimplifierX86Visitor::VisitXor(HXor* instruction) {
   if (!HasAVX2()) {
     return;