Re: [PATCH] tree-optimization/100051 - disambiguate access size vs decl

2021-04-27 Thread Richard Biener via Gcc-patches
On Tue, Apr 13, 2021 at 3:50 PM Richard Biener wrote: > > This adds disambiguation of the access size vs. the decl size > in the pointer based vs. decl based disambiguator. We have > a TBAA based check like this already but that's fend off when > seeing alias-sets of zero or when -fno-strict-alia

[PATCH] tree-optimization/100051 - disambiguate access size vs decl

2021-04-13 Thread Richard Biener
This adds disambiguation of the access size vs. the decl size in the pointer based vs. decl based disambiguator. We have a TBAA based check like this already but that's fend off when seeing alias-sets of zero or when -fno-strict-aliasing is in effect. Also the perceived dynamic type could be smal