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| author | Roman Lebedev <lebedev.ri@gmail.com> | 2019-09-18 19:34:41 +0000 |
|---|---|---|
| committer | Roman Lebedev <lebedev.ri@gmail.com> | 2019-09-18 19:34:41 +0000 |
| commit | ec6b91b6655a92d02c88e942d83366004575a234 (patch) | |
| tree | f5d76c6f1d139a691081f48a56b48ae353f1bbec /llvm/test/Transforms/SimplifyCFG | |
| parent | 260b6949040985b8c315d080b8e197d0ddcc5dec (diff) | |
| download | bcm5719-llvm-ec6b91b6655a92d02c88e942d83366004575a234.tar.gz bcm5719-llvm-ec6b91b6655a92d02c88e942d83366004575a234.zip | |
[MIPS] For vectors, select `add %x, C` as `sub %x, -C` if it results in inline immediate
Summary:
As discussed in https://reviews.llvm.org/D62341#1515637,
for MIPS `add %x, -1` isn't optimal. Unlike X86 there
are no fastpaths to matearialize such `-1`/`1` vector constants,
and `sub %x, 1` results in better codegen,
so undo canonicalization
Reviewers: atanasyan, Petar.Avramovic, RKSimon
Reviewed By: atanasyan
Subscribers: sdardis, arichardson, hiraditya, jrtc27, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66805
llvm-svn: 372254
Diffstat (limited to 'llvm/test/Transforms/SimplifyCFG')
0 files changed, 0 insertions, 0 deletions
