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r114507 - in /trunk/gcc: ChangeLog testsuite/Ch...


Author: rguenth
Date: Fri Jun  9 12:39:11 2006
New Revision: 114507

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114507
Log:
2006-06-09  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26998
	* tree-vrp.c (extract_range_from_unary_expr): For NEGATE_EXPR
	of signed types, only TYPE_MIN_VALUE is special, but for both,
	minimum and maximum value.  Likewise VR_ANTI_RANGE is special
	in this case, as is -fwrapv.

	* gcc.dg/torture/pr26998.c: New testcase.
	* gcc.dg/tree-ssa/vrp29.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr26998.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp29.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


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