1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index e0ae69a..a861696 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -1788,6 +1788,13 @@ llvm::InlineResult llvm::InlineFunction(CallBase &CB, InlineFunctionInfo &IFI,
   BasicBlock *OrigBB = CB.getParent();
   Function *Caller = OrigBB->getParent();
 
+  // Do not inline strictfp function into non-strictfp one. It would require
+  // conversion of all FP operations in host function to constrained intrinsics.
+  if (CalledFunc->getAttributes().hasFnAttr(Attribute::StrictFP) &&
+      !Caller->getAttributes().hasFnAttr(Attribute::StrictFP)) {
+    return InlineResult::failure("incompatible strictfp attributes");
+  }
+
   // GC poses two hazards to inlining, which only occur when the callee has GC:
   //  1. If the caller has no GC, then the callee's GC must be propagated to the
   //     caller.