r151051 - in /branches/gcc-4_4-branch/gcc: Chan...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Aug 24 09:52:03 2009
New Revision: 151051

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151051
Log:
2009-08-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/41094
	* builtins.c (fold_builtin_pow): Fold pow(pow(x,y),z) to
	pow(x,y*z) only if x is nonnegative.

	* gcc.dg/torture/pr41094.c: New testcase.
	* gcc.dg/torture/builtin-power-1.c: Adjust.
	* gcc.dg/builtins-10.c: Likewise.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/pr41094.c
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/builtins.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/builtins-10.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/builtin-power-1.c