r119248 - in /trunk/gcc: ChangeLog builtins.c t...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Nov 27 11:38:42 2006
New Revision: 119248

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119248
Log:
2006-11-27  Richard Guenther  <rguenther@suse.de>

	PR middle-end/25620
	* builtins.c (expand_builtin_pow): Optimize non integer valued
	constant exponents using sqrt or cbrt if possible.  Always fall back
	to expanding via optabs.

	* gcc.target/i386/pow-1.c: New testcase.
	* gcc.dg/builtins-58.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/builtins-58.c
    trunk/gcc/testsuite/gcc.target/i386/pow-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog