[Bug tree-optimization/96963] -Wstringop-overflow false positive on -O3 or -O2 -ftree-vectorize when assigning consecutive char struct members

2020-09-08 Thread gcc_bugzilla at venus dot thegavinli.com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96963 --- Comment #3 from Gavin --- Correct. Due to store-merging, -O2 and -O3 generate the same machine code on both x86_64 and armv7m.

[Bug tree-optimization/96963] New: -Wstringop-overflow false positive on -O3 or -O2 -ftree-vectorize when assigning consecutive char struct members

2020-09-07 Thread gcc_bugzilla at venus dot thegavinli.com
: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: gcc_bugzilla at venus dot thegavinli.com Target Milestone: --- Created attachment 49194 --> ht