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Fix range-loop-analysis warning

Browse Source 
```
llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:8024:19: warning: loop variable 'VF' of type 'const llvm::ElementCount' creates a copy from type 'const llvm::ElementCount' [-Wrange-loop-analysis]
  for (const auto VF : VFCandidates) {
                  ^
llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:8024:8: note: use reference type 'const llvm::ElementCount &' to prevent copying
  for (const auto VF : VFCandidates) {
       ^~~~~~~~~~~~~~~
                  &
1 warning generated.
```

Differential Revision: https://reviews.llvm.org/D103970
This commit is contained in:
Keith Smiley 2021-06-09 09:08:54 -07:00
parent 7e227c0d37
commit 040b1baf1d
1 changed files with 1 additions and 1 deletions
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2
lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -8021,7 +8021,7 @@ LoopVectorizationPlanner::plan(ElementCount UserVF, unsigned UserIC) {
ElementCount::isKnownLE(VF, MaxFactors.ScalableVF); VF *= 2)
VFCandidates.insert(VF);
for (const auto VF : VFCandidates) {
for (const auto &VF : VFCandidates) {
// Collect Uniform and Scalar instructions after vectorization with VF.
CM.collectUniformsAndScalars(VF);