[LowerGuardIntrinsics] Preserve calling conv when lowering

llvm-svn: 268142

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/Transforms/Scalar/LowerGuardIntrinsic.cpp b/llvm/lib/Transforms/Scalar/LowerGuardIntrinsic.cpp
index 5f5dd197b44..a58346c2b1c 100644
--- a/llvm/lib/Transforms/Scalar/LowerGuardIntrinsic.cpp
+++ b/llvm/lib/Transforms/Scalar/LowerGuardIntrinsic.cpp
@@ -66,6 +66,7 @@ static void MakeGuardControlFlowExplicit(Function *DeoptIntrinsic,
     B.CreateRet(DeoptCall);
   }
 
+  DeoptCall->setCallingConv(CI->getCallingConv());
   DeoptBlockTerm->eraseFromParent();
 }
 
@@ -89,6 +90,7 @@ bool LowerGuardIntrinsic::runOnFunction(Function &F) {
 
   auto *DeoptIntrinsic = Intrinsic::getDeclaration(
       F.getParent(), Intrinsic::experimental_deoptimize, {F.getReturnType()});
+  DeoptIntrinsic->setCallingConv(GuardDecl->getCallingConv());
 
   for (auto *CI : ToLower) {
     MakeGuardControlFlowExplicit(DeoptIntrinsic, CI);