commit c9905a6f5908022d74b7a8f4f8fa9240743fdeaa
author Chris Larsen <chris.larsen@imgtec.com> Mon Mar 13 17:06:18 2017 -0700
committer Chris Larsen <chris.larsen@imgtec.com> Tue Mar 14 09:48:16 2017 -0700
tree 4882b5eeb7bc424e7fb26cb6ddc7ec4ad08b34ea
parent 8ae7a8f8bbe3677594a89836431e2cc31f267fb6

MIPS64: Inline polymorphic method calls.

Test: 566-polymorphic-inlining
Test: Boot MIPS64R6 QEMU

Change-Id: I92ca53ebd173c0b3a5d5910678b78bc114502b93

compiler/optimizing/code_generator_mips64.cc

diff --git a/compiler/optimizing/code_generator_mips64.cc b/compiler/optimizing/code_generator_mips64.cc
index 02c3ad6..7eba692 100644
--- a/compiler/optimizing/code_generator_mips64.cc
+++ b/compiler/optimizing/code_generator_mips64.cc
@@ -5067,12 +5067,34 @@
   }
 }
 
-void LocationsBuilderMIPS64::VisitClassTableGet(HClassTableGet*) {
-  UNIMPLEMENTED(FATAL) << "ClassTableGet is unimplemented on mips64";
+void LocationsBuilderMIPS64::VisitClassTableGet(HClassTableGet* instruction) {
+  LocationSummary* locations =
+      new (GetGraph()->GetArena()) LocationSummary(instruction, LocationSummary::kNoCall);
+  locations->SetInAt(0, Location::RequiresRegister());
+  locations->SetOut(Location::RequiresRegister());
 }
 
-void InstructionCodeGeneratorMIPS64::VisitClassTableGet(HClassTableGet*) {
-  UNIMPLEMENTED(FATAL) << "ClassTableGet is unimplemented on mips64";
+void InstructionCodeGeneratorMIPS64::VisitClassTableGet(HClassTableGet* instruction) {
+  LocationSummary* locations = instruction->GetLocations();
+  if (instruction->GetTableKind() == HClassTableGet::TableKind::kVTable) {
+    uint32_t method_offset = mirror::Class::EmbeddedVTableEntryOffset(
+        instruction->GetIndex(), kMips64PointerSize).SizeValue();
+    __ LoadFromOffset(kLoadDoubleword,
+                      locations->Out().AsRegister<GpuRegister>(),
+                      locations->InAt(0).AsRegister<GpuRegister>(),
+                      method_offset);
+  } else {
+    uint32_t method_offset = static_cast<uint32_t>(ImTable::OffsetOfElement(
+        instruction->GetIndex(), kMips64PointerSize));
+    __ LoadFromOffset(kLoadDoubleword,
+                      locations->Out().AsRegister<GpuRegister>(),
+                      locations->InAt(0).AsRegister<GpuRegister>(),
+                      mirror::Class::ImtPtrOffset(kMips64PointerSize).Uint32Value());
+    __ LoadFromOffset(kLoadDoubleword,
+                      locations->Out().AsRegister<GpuRegister>(),
+                      locations->Out().AsRegister<GpuRegister>(),
+                      method_offset);
+  }
 }
 
 }  // namespace mips64