[PATCH] Handle '\0' in strcmp in RTL expansion (PR tree-optimization/90892).
Martin Liška
mliska@suse.cz
Mon Jun 17 09:26:00 GMT 2019
Hi.
The function c_getstr returns string and length of the string.
In inline_expand_builtin_string_cmp, we should consider situations
where a string constant contains a zero character. In that case
we have to shorten len[12].
Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
Ready to be installed?
Thanks,
Martin
gcc/ChangeLog:
2019-06-17 Martin Liska <mliska@suse.cz>
PR tree-optimization/90892
* builtins.c (inline_expand_builtin_string_cmp): Handle '\0'
in string constants.
gcc/testsuite/ChangeLog:
2019-06-17 Martin Liska <mliska@suse.cz>
PR tree-optimization/90892
* gcc.dg/pr90892.c: New test.
---
gcc/builtins.c | 14 ++++++++++++++
gcc/testsuite/gcc.dg/pr90892.c | 14 ++++++++++++++
2 files changed, 28 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/pr90892.c
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