Implement lowering of va_arg in clang directly. (This is 32-bit X86 only for now).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58681 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 797cbf42..ccc5008 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -281,6 +281,12 @@
/// EmitMemSetToZero - Generate code to memset a value of the given type to 0;
void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty);
+
+ // EmitVAArg - Generate code to get an argument from the passed in pointer
+ // and update it accordingly. The return value is a pointer to the argument.
+ // FIXME: We should be able to get rid of this method and use the va_arg
+ // instruction in LLVM instead once it works well enough.
+ llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty);
//===--------------------------------------------------------------------===//
// Declaration Emission