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-rw-r--r--llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
index a6544cdcd2d..c1b475dd101 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -738,7 +738,7 @@ unsigned GCNTTIImpl::getUserCost(const User *U,
return getShuffleCost(TTI::SK_ExtractSubvector, SrcTy, SubIndex, Ty);
if (Shuffle->changesLength())
- return -1;
+ return BaseT::getUserCost(U, Operands);
if (Shuffle->isIdentity())
return 0;
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