r199870 - in /trunk/gcc: ChangeLog config/i386/...

[jakub@gcc.gnu.org]

Author: jakub
Date: Sun Jun  9 18:30:01 2013
New Revision: 199870

URL: http://gcc.gnu.org/viewcvs?rev=199870&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:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr57568.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog