[llvm-dev] difference between polly stripmine, vector and unroll flags

[hameeza ahmed via llvm-dev]

Hello I m using following polly flags,

clang -O3 -mllvm -polly -mllvm -polly-vectorizer=stripmine
clang -O3 -mllvm -polly -mllvm -polly-vectorizer=polly
clang -O3 -mllvm -polly -mllvm -force-vector-interleave=32

I am getting different execution times for each 3. Can you please tell me
the difference between the optimizations performed by these 3 flags?


Please help
Thank You
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