commit a466c161210855d9f43eb2f811dcb4654d625381
author Logan Chien <loganchien@google.com> Tue Dec 27 17:55:46 2011 +0800
committer Shih-wei Liao <sliao@google.com> Thu Feb 16 09:27:43 2012 -0800
tree 24602beea4eb897ba1dcfa5d2d78edbcc6b5d586
parent 798366e4dfa670da56330a3a7b7182aa1a5a66bf

Implement unconditional branch instructions.

Change-Id: Id2a722378f0beb1158ade57305d579e57924a1ef

src/compiler_llvm/method_compiler.cc

diff --git a/src/compiler_llvm/method_compiler.cc b/src/compiler_llvm/method_compiler.cc
index 9760e01..9101c42 100644
--- a/src/compiler_llvm/method_compiler.cc
+++ b/src/compiler_llvm/method_compiler.cc
@@ -1280,8 +1280,17 @@
 
 void MethodCompiler::EmitInsn_UnconditionalBranch(uint32_t dex_pc,
                                                   Instruction const* insn) {
-  // UNIMPLEMENTED(WARNING);
-  irb_.CreateUnreachable();
+
+  Instruction::DecodedInstruction dec_insn(insn);
+
+  int32_t branch_offset = dec_insn.vA_;
+
+  if (branch_offset <= 0) {
+    // Garbage collection safe-point on backward branch
+    EmitGuard_GarbageCollectionSuspend(dex_pc);
+  }
+
+  irb_.CreateBr(GetBasicBlock(dex_pc + branch_offset));
 }