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2013 Jun 14
0
[LLVMdev] Enabling the vectorizer for -Os -- ping
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2013 Jun 14
5
[LLVMdev] Enabling the vectorizer for -Os -- ping
Hi,
Last week I wrote llvm-dev and presented data that shows how enabling the vectorizer on -Os can improve the performance of many workloads and that it has negligible effects on code size. I also added a command line switch to make it easier for people to benchmark the vectorizer using -Os directly from clang without changing LLVM. Has anyone done any benchmarks on -Os + vectorization ?