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| author | Richard Biener <rguenther@suse.de> | 2023-11-09 09:41:10 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-11-09 11:48:32 +0100 |
| commit | 8ebcea91e24964ec52ca2caf9f8585f3a785f7d5 (patch) | |
| tree | d9ab4a5e57fcda68b7116ac9466be0e821124caa /gcc/tree-vect-loop.cc | |
| parent | a0273d257ccf4d01997368d85f008094ab84db73 (diff) | |
| download | gcc-8ebcea91e24964ec52ca2caf9f8585f3a785f7d5.zip gcc-8ebcea91e24964ec52ca2caf9f8585f3a785f7d5.tar.gz gcc-8ebcea91e24964ec52ca2caf9f8585f3a785f7d5.tar.bz2 | |
tree-optimization/112444 - avoid bougs PHI value-numbering
With .DEFERRED_INIT ssa_undefined_value_p () can return true for
values we did not visit (because they proved unreachable) but
are not .VN_TOP. Avoid using those as value which, because they
are not visited, are assumed to be defined outside of the region.
PR tree-optimization/112444
* tree-ssa-sccvn.cc (visit_phi): Avoid using not visited
defs as undefined vals.
* gcc.dg/torture/pr112444.c: New testcase.
Diffstat (limited to 'gcc/tree-vect-loop.cc')
0 files changed, 0 insertions, 0 deletions