[llvm-dev] Loop predication pass (original) (raw)
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Sun Jun 21 09:03:50 PDT 2020
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Hi,
I am trying the pass "loop-predication" of opt in the SPEC CPU 2017 benchmarks.
I generate a original version with "clang -O3" and "opt -O3". Later, I generate a loop-predication version with "clang -O3" and "opt -O3 -loop-predication". If I compare the two versions I expected that the branch instructions are reduced with loop-predication. However, they are the same that in the original version.
Why do this happen?
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