ART: Compiler support for const-method-handle

Implemented as a runtime call.

Bug: 66890674
Test: art/test.py --target -r -t 979
Test: art/test.py --target --64 -r -t 979
Test: art/test.py --host -r -t 979
Change-Id: I67f461c819a7d528d7455afda8b4a59e9aed381c

1 files changed, 14 insertions, 0 deletions

diff --git a/compiler/optimizing/instruction_builder.cc b/compiler/optimizing/instruction_builder.cc
index 61730a8128..35a39456a2 100644
--- a/compiler/optimizing/instruction_builder.cc
+++ b/compiler/optimizing/instruction_builder.cc
@@ -1896,6 +1896,13 @@ bool HInstructionBuilder::LoadClassNeedsAccessCheck(Handle<mirror::Class> klass)
   }
 }
 
+void HInstructionBuilder::BuildLoadMethodHandle(uint16_t proto_idx, uint32_t dex_pc) {
+  const DexFile& dex_file = *dex_compilation_unit_->GetDexFile();
+  HLoadMethodHandle* load_method_handle =
+      new (allocator_) HLoadMethodHandle(graph_->GetCurrentMethod(), proto_idx, dex_file, dex_pc);
+  AppendInstruction(load_method_handle);
+}
+
 void HInstructionBuilder::BuildLoadMethodType(uint16_t proto_idx, uint32_t dex_pc) {
   const DexFile& dex_file = *dex_compilation_unit_->GetDexFile();
   HLoadMethodType* load_method_type =
@@ -2934,6 +2941,13 @@ bool HInstructionBuilder::ProcessDexInstruction(const Instruction& instruction,
       break;
     }
 
+    case Instruction::CONST_METHOD_HANDLE: {
+      uint16_t method_handle_idx = instruction.VRegB_21c();
+      BuildLoadMethodHandle(method_handle_idx, dex_pc);
+      UpdateLocal(instruction.VRegA_21c(), current_block_->GetLastInstruction());
+      break;
+    }
+
     case Instruction::CONST_METHOD_TYPE: {
       uint16_t proto_idx = instruction.VRegB_21c();
       BuildLoadMethodType(proto_idx, dex_pc);