MIPS64: Inline polymorphic method calls.

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

Change-Id: I92ca53ebd173c0b3a5d5910678b78bc114502b93

diff --git a/compiler/optimizing/code_generator_mips64.cc b/compiler/optimizing/code_generator_mips64.cc
index 02c3ad6..7eba692 100644 (file)
--- a/compiler/optimizing/code_generator_mips64.cc
+++ b/compiler/optimizing/code_generator_mips64.cc
@@ -5067,12 +5067,34 @@ void InstructionCodeGeneratorMIPS64::VisitPackedSwitch(HPackedSwitch* switch_ins
   }
 }
 
-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

diff --git a/compiler/optimizing/inliner.cc b/compiler/optimizing/inliner.cc
index 2e45149..8e17bab 100644 (file)
--- a/compiler/optimizing/inliner.cc
+++ b/compiler/optimizing/inliner.cc
@@ -893,10 +893,6 @@ bool HInliner::TryInlinePolymorphicCallToSameTarget(
     return false;
   }
 
-  if (graph_->GetInstructionSet() == kMips64) {
-    // TODO: Support HClassTableGet for mips64.
-    return false;
-  }
   ClassLinker* class_linker = caller_compilation_unit_.GetClassLinker();
   PointerSize pointer_size = class_linker->GetImagePointerSize();