backport: [multiple changes]

backport: [multiple changes]

2007-01-25  Richard Guenther  <rguenther@suse.de>

	Backport from mainline:
	2006-08-11  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28651
	* simplify-rtx.c (simplify_const_relational_operation):
	Simplify A CMP B to A - B CMP 0 only for EQ and NE comparison
	codes.

	* gcc.c-torture/execute/pr28651.c: New testcase.

	2006-08-14  Richard Guenther  <rguenther@suse.de>

	PR testsuite/28703
	* gcc.c-torture/execute/pr28651.c: Do not use argc
	to avoid optimization, instead forbid inlining.

From-SVN: r121181