diff options
| author | Richard Biener <rguenther@suse.de> | 2022-01-18 09:06:13 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-01-18 10:27:56 +0100 |
| commit | 00dc7877ee02634d4837d024e36b55bef6b9d49c (patch) | |
| tree | f0a89f33e9515536acaac397db675ba7fd87466f /gcc/function.h | |
| parent | ff7aeceb6b3a476c3bac66a7f39a5ef4240206fc (diff) | |
| download | gcc-00dc7877ee02634d4837d024e36b55bef6b9d49c.zip gcc-00dc7877ee02634d4837d024e36b55bef6b9d49c.tar.gz gcc-00dc7877ee02634d4837d024e36b55bef6b9d49c.tar.bz2 | |
tree-optimization/104064 - UBSAN issue in vect dataref analysis
Since we order DRs after DR_INIT we know the difference will be
positive and thus can avoid signed overflow issues by using
unsigned arithmetic to produce the known unsigned result.
2022-01-18 Richard Biener <rguenther@suse.de>
PR tree-optimization/104064
* tree-vect-data-refs.cc (vect_analyze_data_ref_accesses): Check
DR_INIT fits in a signed HWI, represent the difference from the
first DR in unsigned.
Diffstat (limited to 'gcc/function.h')
0 files changed, 0 insertions, 0 deletions