r199871 - in /branches/gcc-4_8-branch/gcc: Chan...

[jakub@gcc.gnu.org]

Author: jakub
Date: Sun Jun  9 18:33:32 2013
New Revision: 199871

URL: http://gcc.gnu.org/viewcvs?rev=199871&root=gcc&view=rev
Log:
	PR target/57568
	* config/i386/i386.md (TARGET_READ_MODIFY_WRITE peepholes): Ensure
	that operands[2] doesn't overlap with operands[0].

	* gcc.c-torture/execute/pr57568.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr57568.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/config/i386/i386.md
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog