| commit | 7ceed7e3e29c3375e3b8c4347d1985a72bbe7f11 | |
| author | Andrew Pinski <apinski@marvell.com> | |
| Wed, 7 Jun 2023 14:58:50 +0000 (7 07:58 -0700) | ||
| committer | Andrew Pinski <apinski@marvell.com> | |
| Fri, 9 Jun 2023 14:09:15 +0000 (9 07:09 -0700) | ||
| tree | e83fd55d965b5ba5094dbb040b22bc852fb4b724 | treesnapshot (tar.gz zip) |
| parent | 72e652f3425079259faa4edefe1dc571f72f91e0 | commitdiff |
MATCH: Allow unsigned types for `X & -Y -> X * Y` pattern
This allows unsigned types if the inner type where the negation is
located has greater than or equal to precision than the outer type.
branchless-cond.c needs to be updated since now we change it to
use a multiply rather than still having (-a)&c in there.
OK? Bootstrapped and tested on x86_64-linux-gnu.
gcc/ChangeLog:
* match.pd (`X & -Y -> X * Y`): Allow for truncation
and the same type for unsigned types.
gcc/testsuite/ChangeLog:
* gcc.dg/tree-ssa/branchless-cond.c: Update testcase.
This allows unsigned types if the inner type where the negation is
located has greater than or equal to precision than the outer type.
branchless-cond.c needs to be updated since now we change it to
use a multiply rather than still having (-a)&c in there.
OK? Bootstrapped and tested on x86_64-linux-gnu.
gcc/ChangeLog:
* match.pd (`X & -Y -> X * Y`): Allow for truncation
and the same type for unsigned types.
gcc/testsuite/ChangeLog:
* gcc.dg/tree-ssa/branchless-cond.c: Update testcase.
| gcc/match.pd | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/tree-ssa/branchless-cond.c | diffblobblamehistory |