r150874 - in /trunk/gcc: ChangeLog builtins.c t...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Aug 18 13:40:18 2009
New Revision: 150874

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150874
Log:
2009-08-18  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:
    trunk/gcc/testsuite/gcc.dg/torture/pr41094.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/builtins-10.c
    trunk/gcc/testsuite/gcc.dg/torture/builtin-power-1.c