commit 8d2c459d3f694743ac6e75042d1cf9b1efb1194e
author xueliang.zhong <xueliang.zhong@linaro.org> Wed Nov 23 17:05:25 2016 +0000
committer xueliang.zhong <xueliang.zhong@linaro.org> Thu Nov 24 12:13:12 2016 +0000
tree 4b98feaae69b6d5a69eda7d3d1086b61718c44ad
parent 4bb3c7fb33c3f8636e38884ddf023f2c9a39a413

ARM: VIXL32: Implement HClassTableGet Visitor.

Test: ART_USE_VIXL_ARM_BACKEND=true m test-art-host
Test: ART_USE_VIXL_ARM_BACKEND=true m test-art-target
Change-Id: Ia334bff827a78966274dc2a80a2be8688240cadf

compiler/optimizing/code_generator_arm_vixl.cc

diff --git a/compiler/optimizing/code_generator_arm_vixl.cc b/compiler/optimizing/code_generator_arm_vixl.cc
index b8d9a91..d962b44 100644
--- a/compiler/optimizing/code_generator_arm_vixl.cc
+++ b/compiler/optimizing/code_generator_arm_vixl.cc
@@ -6155,17 +6155,35 @@
   }
 }
 
-void LocationsBuilderARMVIXL::VisitClassTableGet(
-    HClassTableGet* instruction ATTRIBUTE_UNUSED) {
-  TODO_VIXL32(FATAL);
+void LocationsBuilderARMVIXL::VisitClassTableGet(HClassTableGet* instruction) {
+  LocationSummary* locations =
+      new (GetGraph()->GetArena()) LocationSummary(instruction, LocationSummary::kNoCall);
+  locations->SetInAt(0, Location::RequiresRegister());
+  locations->SetOut(Location::RequiresRegister());
 }
 
-void InstructionCodeGeneratorARMVIXL::VisitClassTableGet(
-    HClassTableGet* instruction ATTRIBUTE_UNUSED) {
-  TODO_VIXL32(FATAL);
+void InstructionCodeGeneratorARMVIXL::VisitClassTableGet(HClassTableGet* instruction) {
+  if (instruction->GetTableKind() == HClassTableGet::TableKind::kVTable) {
+    uint32_t method_offset = mirror::Class::EmbeddedVTableEntryOffset(
+        instruction->GetIndex(), kArmPointerSize).SizeValue();
+    GetAssembler()->LoadFromOffset(kLoadWord,
+                                   OutputRegister(instruction),
+                                   InputRegisterAt(instruction, 0),
+                                   method_offset);
+  } else {
+    uint32_t method_offset = static_cast<uint32_t>(ImTable::OffsetOfElement(
+        instruction->GetIndex(), kArmPointerSize));
+    GetAssembler()->LoadFromOffset(kLoadWord,
+                                   OutputRegister(instruction),
+                                   InputRegisterAt(instruction, 0),
+                                   mirror::Class::ImtPtrOffset(kArmPointerSize).Uint32Value());
+    GetAssembler()->LoadFromOffset(kLoadWord,
+                                   OutputRegister(instruction),
+                                   OutputRegister(instruction),
+                                   method_offset);
+  }
 }
 
-
 #undef __
 #undef QUICK_ENTRY_POINT
 #undef TODO_VIXL32