Richard Guenther b0cd88d216 [multiple changes]
2006-10-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27132
	PR middle-end/23295
	* builtins.c (fold_binary): Remove checks for flag_wrapv
	and flag_trapv where negate_expr_p covers these cases.

	* gcc.dg/pr27132.c: New testcase.
	* gcc.dg/pr23295.c: Likewise.
	* gcc.dg/tree-ssa/pr23294.c: Adjust patterns.
	* g++.dg/tree-ssa/pr19807.C: Likewise.

2006-10-23  Richard Guenther  <rguenther@suse.de>

	PR middle-end/29548
	* fold-const.c (fold_plusminus_mult_expr): Check exact power
	of two on the absolute value.
	(fold_binary): Fold x * -C to -x * C if x is easily negatable
	and negating -C does not overflow.

From-SVN: r117969
2006-10-23 07:19:34 +00:00
2006-10-23 07:19:34 +00:00
2006-10-22 13:40:31 +01:00
2006-10-15 07:42:57 +00:00
2006-10-15 07:42:57 +00:00
2006-10-15 07:42:57 +00:00
2005-07-16 02:30:53 +00:00
2005-06-13 08:26:05 +00:00
2006-01-03 00:30:27 +00:00
2005-07-16 02:30:53 +00:00
2005-07-16 02:30:53 +00:00
2005-07-16 02:30:53 +00:00
2005-11-21 13:21:37 +11:00
2005-05-08 17:49:46 +00:00

This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the file COPYING
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libraries, are under different terms; see the individual source files
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The directory INSTALL contains copies of the installation information
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gcc/doc/install.texi.  The installation information includes details
of what is included in the GCC sources and what files GCC installs.

See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information.  An online readable
version of the manual is in the files gcc/doc/gcc.info*.

See http://gcc.gnu.org/bugs.html for how to report bugs usefully.
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