commit 6e474f8a2eb5379c74e589a41713c9b26aed2904
author TDYa127 <tdy@google.com> Thu May 17 21:23:57 2012 -0700
committer Shih-wei Liao <sliao@google.com> Fri May 18 12:19:09 2012 -0700
tree 6fecf7b7feaad9e12214b4a2346f2c61c9a1a738
parent d70faafce3b04aa79faa5def1e907f29bc24a788

Only initialize the shadow frame table.

The shadow frame header will be filled before used.

Change-Id: Ic7375012c1a65ea67dd9be648671edb9d4a5fb9a

src/compiler_llvm/method_compiler.cc

diff --git a/src/compiler_llvm/method_compiler.cc b/src/compiler_llvm/method_compiler.cc
index 3a02ee9..1acb17d 100644
--- a/src/compiler_llvm/method_compiler.cc
+++ b/src/compiler_llvm/method_compiler.cc
@@ -279,11 +279,14 @@
 
   irb_.SetInsertPoint(basic_block_shadow_frame_);
 
-  // Zero-initialization of the shadow frame
-  llvm::ConstantAggregateZero* zero_initializer =
-    llvm::ConstantAggregateZero::get(shadow_frame_type);
+  // Zero-initialization of the shadow frame table
+  llvm::Value* shadow_frame_table = irb_.CreateConstGEP2_32(shadow_frame_, 0, 1);
+  llvm::Type* table_type = shadow_frame_type->getElementType(1);
 
-  irb_.CreateStore(zero_initializer, shadow_frame_, kTBAAShadowFrame);
+  llvm::ConstantAggregateZero* zero_initializer =
+    llvm::ConstantAggregateZero::get(table_type);
+
+  irb_.CreateStore(zero_initializer, shadow_frame_table, kTBAAShadowFrame);
 
   // Get method object
   llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();