r244598 - in /trunk/gcc: ChangeLog config/rs600...

[acsawdey@gcc.gnu.org]

Author: acsawdey
Date: Wed Jan 18 20:56:16 2017
New Revision: 244598

URL: https://gcc.gnu.org/viewcvs?rev=244598&root=gcc&view=rev
Log:
2017-01-18  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
	* config/rs6000/rs6000-protos.h (expand_strn_compare): Add arg.
	* config/rs6000/rs6000.c (expand_strn_compare): Add ability to expand
	strcmp. Fix bug where comparison didn't stop with zero byte. Fix
	case where N arg is SIZE_MAX.
	* config/rs6000/rs6000.md (cmpstrnsi): Args to expand_strn_compare.
	(cmpstrsi): Add pattern.
2017-01-18  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
	* gcc.dg/strcmp-1.c: New test.
	* gcc.dg/strncmp-1.c: Add test for a bug that escaped.



Added:
    trunk/gcc/testsuite/gcc.dg/strcmp-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000-protos.h
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/config/rs6000/rs6000.md
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/strncmp-1.c