r171138 - in /trunk/gcc: ChangeLog combine.c te...

[cltang@gcc.gnu.org]

Author: cltang
Date: Fri Mar 18 13:22:42 2011
New Revision: 171138

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171138
Log:
2011-03-18  Chung-Lin Tang  <cltang@codesourcery.com>

	* combine.c (try_combine): Do simplification only call of
	subst() on i2 even when i1 is present. Update comments.

	testsuite/
	* gcc.target/arm/unsigned-extend-1.c: New.

Added:
    trunk/gcc/testsuite/gcc.target/arm/unsigned-extend-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog