1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/IR/Attributes.cpp b/llvm/lib/IR/Attributes.cpp
index c1c4c0f..ace23f3 100644
--- a/llvm/lib/IR/Attributes.cpp
+++ b/llvm/lib/IR/Attributes.cpp
@@ -2026,6 +2026,10 @@ static bool checkDenormMode(const Function &Caller, const Function &Callee) {
   if (denormModeCompatible(CallerMode, CalleeMode)) {
     DenormalMode CallerModeF32 = Caller.getDenormalModeF32Raw();
     DenormalMode CalleeModeF32 = Callee.getDenormalModeF32Raw();
+    if (CallerModeF32 == DenormalMode::getInvalid())
+      CallerModeF32 = CallerMode;
+    if (CalleeModeF32 == DenormalMode::getInvalid())
+      CalleeModeF32 = CalleeMode;
     return denormModeCompatible(CallerModeF32, CalleeModeF32);
   }