| commit | e10cb804e658dbd1e9d58f528f3985362e4e72e7 | |
| author | Richard Biener <rguenther@suse.de> | |
| Mon, 21 Aug 2023 09:07:18 +0000 (21 11:07 +0200) | ||
| committer | Richard Biener <rguenther@suse.de> | |
| Mon, 21 Aug 2023 09:46:48 +0000 (21 11:46 +0200) | ||
| tree | 3a21af0b535cac057e653f5e540063cf0102b690 | treesnapshot (tar.gz zip) |
| parent | 03cb6904d1ab6de1f42d06bcf2988bf7b3e7709a | commitdiff |
tree-optimization/111082 - bogus promoted min
vectorize_slp_instance_root_stmt promotes operations with undefined
overflow to unsigned arithmetic but fails to consider operations
that do not overflow like MIN which it turned into MIN with wrong
signedness and in the case of the PR an unsupported operation.
The following rectifies this.
PR tree-optimization/111082
* tree-vect-slp.cc (vectorize_slp_instance_root_stmt): Only
pun operations that can overflow.
* gcc.dg/pr111082.c: New testcase.
vectorize_slp_instance_root_stmt promotes operations with undefined
overflow to unsigned arithmetic but fails to consider operations
that do not overflow like MIN which it turned into MIN with wrong
signedness and in the case of the PR an unsupported operation.
The following rectifies this.
PR tree-optimization/111082
* tree-vect-slp.cc (vectorize_slp_instance_root_stmt): Only
pun operations that can overflow.
* gcc.dg/pr111082.c: New testcase.
| gcc/testsuite/gcc.dg/pr111082.c | [new file with mode: 0644] | blob |
| gcc/tree-vect-slp.cc | diffblobblamehistory |