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| author | Richard Biener <rguenther@suse.de> | 2020-02-27 13:46:34 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2020-02-27 13:47:50 +0100 |
| commit | e431546ff9f1367538ed1307a1c98fa32fec7a8a (patch) | |
| tree | ae39a5ce6b1bfd253c4f637ff1d309e0f5df0654 /gcc/tree-ssa-alias.c | |
| parent | e840185b31e40466e1575507200e1600e2343454 (diff) | |
| download | gcc-e431546ff9f1367538ed1307a1c98fa32fec7a8a.zip gcc-e431546ff9f1367538ed1307a1c98fa32fec7a8a.tar.gz gcc-e431546ff9f1367538ed1307a1c98fa32fec7a8a.tar.bz2 | |
tree-optimization/93508 - make VN translate through _chk and valueize length
Value-numbering failed to handle __builtin_{memcpy,memset,...}_chk
variants when removing abstraction and also failed to use the
value-numbering lattice when requiring the length argument of the
call to be constant.
2020-02-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/93508
* tree-ssa-sccvn.c (vn_reference_lookup_3): Handle _CHK like
non-_CHK variants. Valueize their length arguments.
* gcc.dg/tree-ssa/ssa-fre-85.c: New testcase.
Diffstat (limited to 'gcc/tree-ssa-alias.c')
0 files changed, 0 insertions, 0 deletions