r166544 - in /trunk/gcc: ChangeLog testsuite/Ch...

[spop@gcc.gnu.org]

Author: spop
Date: Wed Nov 10 16:06:47 2010
New Revision: 166544

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166544
Log:
Fix PR45971: do not predicate condition phi nodes that are scev analyzable.

2010-11-10  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/45971
	* tree-if-conv.c (predicate_scalar_phi): Do not generate a COND_EXPR
	for phi nodes analyzable by scev.

	* gcc.dg/vect/O3-pr45971.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/O3-pr45971.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-if-conv.c