Commit 9f3ff6f

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[SimplifyCFG] Not folding branch in loop header with constant iterations

Loop header with constant usually can be optimized in unroll, folding branch in such loop header at SimplifyCFG will break unroll optimization.

1 parent 8f018d3 commit 9f3ff6fCopy full SHA for 9f3ff6f

3 files changed

+453

-45

lines changed

clang/test/CodeGenCUDA
- simplify-cfg-unroll.cu
llvm
- lib/Transforms/Utils
  - SimplifyCFG.cpp
- test/Transforms/LoopVectorize
  - if-pred-non-void.ll

+453

-45

lines changed

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