[Bug tree-optimization/90892] [9/10 regression] -O2 miscompiles __builtin_strncmp with string containing '\0'
marxin at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Jul 3 08:33:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90892
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Wed Jul 3 08:32:25 2019
New Revision: 272993
URL: https://gcc.gnu.org/viewcvs?rev=272993&root=gcc&view=rev
Log:
Handle '\0' in strcmp in RTL expansion (PR tree-optimization/90892).
2019-07-03 Martin Liska <mliska@suse.cz>
PR tree-optimization/90892
* builtins.c (inline_expand_builtin_string_cmp): Handle '\0'
in string constants.
2019-07-03 Martin Liska <mliska@suse.cz>
PR tree-optimization/90892
* gcc.dg/pr90892.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr90892.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
trunk/gcc/testsuite/ChangeLog
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