diff options
| -rw-r--r-- | lib/Transforms/Scalar/SimplifyLibCalls.cpp | 2 | ||||
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/FFS.ll | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp index d53bc3f0cc..8c41c728c0 100644 --- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -1116,7 +1116,7 @@ struct VISIBILITY_HIDDEN FFSOpt : public LibCallOptimization { Value *F = Intrinsic::getDeclaration(Callee->getParent(), Intrinsic::cttz, &ArgType, 1); Value *V = B.CreateCall(F, Op, "cttz"); - V = B.CreateAdd(V, ConstantInt::get(Type::Int32Ty, 1), "tmp"); + V = B.CreateAdd(V, ConstantInt::get(V->getType(), 1), "tmp"); V = B.CreateIntCast(V, Type::Int32Ty, false, "tmp"); Value *Cond = B.CreateICmpNE(Op, Constant::getNullValue(ArgType), "tmp"); diff --git a/test/Transforms/SimplifyLibCalls/FFS.ll b/test/Transforms/SimplifyLibCalls/FFS.ll index bdf43ef69f..d6a504af86 100644 --- a/test/Transforms/SimplifyLibCalls/FFS.ll +++ b/test/Transforms/SimplifyLibCalls/FFS.ll @@ -28,3 +28,9 @@ define i32 @main() { ret i32 %rslt5 } + +; PR4206 +define i32 @a(i64) nounwind { + %2 = call i32 @ffsll(i64 %0) ; <i32> [#uses=1] + ret i32 %2 +} |