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| author | Sanjay Patel <spatel@rotateright.com> | 2018-02-05 23:43:05 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-02-05 23:43:05 +0000 |
| commit | d7c702b45191ea1cab867a257b8b6b1455b9259f (patch) | |
| tree | a21b47a8eda4c0b76d0658feef0aa737d1d9458c /libcxx/test/std/experimental/string.view/string.view.capacity/capacity.pass.cpp | |
| parent | 40ddcb8133f4acaafabef2406345fdb8c796214e (diff) | |
| download | bcm5719-llvm-d7c702b45191ea1cab867a257b8b6b1455b9259f.tar.gz bcm5719-llvm-d7c702b45191ea1cab867a257b8b6b1455b9259f.zip | |
[LoopStrengthReduce, x86] don't add cost for a cmp that will be macro-fused (PR35681)
In the motivating case from PR35681 and represented by the macro-fuse-cmp test:
https://bugs.llvm.org/show_bug.cgi?id=35681
...there's a 37 -> 31 byte size win for the loop because we eliminate the big base
address offsets.
SPEC2017 on Ryzen shows no significant perf difference.
Differential Revision: https://reviews.llvm.org/D42607
llvm-svn: 324289
Diffstat (limited to 'libcxx/test/std/experimental/string.view/string.view.capacity/capacity.pass.cpp')
0 files changed, 0 insertions, 0 deletions
