| commit | bd14cdceb9c6f4800e25a9fbca635a1d4c06fd32 | |
| author | Eric Botcazou <ebotcazou@adacore.com> | |
| Fri, 4 Feb 2022 11:03:49 +0000 (4 12:03 +0100) | ||
| committer | Eric Botcazou <ebotcazou@adacore.com> | |
| Fri, 4 Feb 2022 11:10:05 +0000 (4 12:10 +0100) | ||
| tree | f095dd4c180fc306e7fba96b4025132bd4d12adf | treesnapshot (tar.gz zip) |
| parent | 876e70d4681332a600492173af0c7259e5a438c6 | commitdiff |
Disable new 1/X optimization with -fnon-call-exceptions
The trapping behavior of the operation needs to be preserved when the
-fnon-call-exceptions switch is in effect. This also adds the same
guards to similar optimizations.
gcc/
PR tree-optimization/104356
* match.pd (X / bool_range_Y is X): Add guard.
(X / X is one): Likewise.
(X / abs (X) is X < 0 ? -1 : 1): Likewise.
(X / -X is -1): Likewise.
(1 / X -> X == 1): Likewise.
The trapping behavior of the operation needs to be preserved when the
-fnon-call-exceptions switch is in effect. This also adds the same
guards to similar optimizations.
gcc/
PR tree-optimization/104356
* match.pd (X / bool_range_Y is X): Add guard.
(X / X is one): Likewise.
(X / abs (X) is X < 0 ? -1 : 1): Likewise.
(X / -X is -1): Likewise.
(1 / X -> X == 1): Likewise.
| gcc/match.pd | diffblobblamehistory |