r220249 - in /trunk/gcc: ChangeLog combine.c te...

[law@gcc.gnu.org]

Author: law
Date: Thu Jan 29 14:30:45 2015
New Revision: 220249

URL: https://gcc.gnu.org/viewcvs?rev=220249&root=gcc&view=rev
Log:
	PR target/15184
	* combine.c (try_combine): If I0 is a memory load and I3 a store
	to a related address, increase the "goodness" of doing a 4-insn
	combination with I0-I3.
	(make_field_assignment): Handle SUBREGs in the ior+and case.

	PR target/15184
	* gcc.target/i386/pr15184-1.c: New test.
	* gcc.target/i386/pr15184-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr15184-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr15184-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog