Add garbage collection suspend guard.

Change-Id: Ibf01540fd16fc08ddc57cf608b335567790b8c9c
diff --git a/src/compiler_llvm/method_compiler.h b/src/compiler_llvm/method_compiler.h
index 491ced3..f9e73f9 100644
--- a/src/compiler_llvm/method_compiler.h
+++ b/src/compiler_llvm/method_compiler.h
@@ -145,6 +145,8 @@
 
   void EmitBranchExceptionLandingPad(uint32_t dex_pc);
 
+  void EmitGuard_GarbageCollectionSuspend(uint32_t addr);
+
 
   // Basic block helper functions
   llvm::BasicBlock* GetBasicBlock(uint32_t dex_pc);