IRgen/ObjC: Correctly construct the function info for variadic message sends.
This fixes some bad -O0 codegen and the unnecessary clearing of al on entry to objc_msgSend for most message sends.
<rdar://problem/7102824> [irgen] unnecessary xorb on calls to objc_msgSend on x86_64
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82118 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index a76e302..a3ff4be 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -1530,9 +1530,8 @@
CodeGenTypes &Types = CGM.getTypes();
const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, ActualArgs);
- // In 64bit ABI, type must be assumed VARARG. In 32bit abi,
- // it seems not to matter.
- const llvm::FunctionType *FTy = Types.GetFunctionType(FnInfo, (ObjCABI == 2));
+ const llvm::FunctionType *FTy =
+ Types.GetFunctionType(FnInfo, Method ? Method->isVariadic() : false);
llvm::Constant *Fn = NULL;
if (CGM.ReturnTypeUsesSret(FnInfo)) {