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| author | Jakub Jelinek <jakub@redhat.com> | 2021-01-13 19:54:49 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2021-01-13 19:54:49 +0100 |
| commit | 8fc183ccd0628465205b8a88c29ab69bfe74a08a (patch) | |
| tree | 4f8b6bc9bb581e48d217a2c0baacbfcb5f13e102 /gcc/go | |
| parent | 7d7ef413ef1b696dec2710ae0acc058bdc832686 (diff) | |
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match.pd: Fold (~X | C) ^ D into (X | C) ^ (~D ^ C) if (~D ^ C) can be simplified [PR96691]
These simplifications are only simplifications if the (~D ^ C) or (D ^ C)
expressions fold into gimple vals, but in that case they decrease number of
operations by 1.
2021-01-13 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/96691
* match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
(~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
(~D ^ C) or (D ^ C) can be simplified.
* gcc.dg/tree-ssa/pr96691.c: New test.
Diffstat (limited to 'gcc/go')
0 files changed, 0 insertions, 0 deletions