r157631 - in /branches/gcc-4_4-branch/gcc: Chan...

[jakub@gcc.gnu.org]

Author: jakub
Date: Mon Mar 22 14:58:00 2010
New Revision: 157631

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157631
Log:
	Backport from mainline:
	2010-03-18  Michael Matz  <matz@suse.de>

	PR middle-end/43419
	* builtins.c (expand_builtin_pow): Don't transform pow(x, 0.5)
	into sqrt(x) if we need to preserve signed zeros.

	* gcc.dg/pr43419.c: New testcase.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr43419.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