------- Comment #18 from rguenth at gcc dot gnu dot org 2007-05-16 12:57 ------- Subject: Bug 26998
Author: rguenth Date: Wed May 16 11:57:09 2007 New Revision: 124767 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124767 Log: 2007-05-16 Richard Guenther <[EMAIL PROTECTED]> Backport from mainline: 2006-06-09 Richard Guenther <[EMAIL PROTECTED]> 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: branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/torture/pr26998.c - copied unchanged from r114507, trunk/gcc/testsuite/gcc.dg/torture/pr26998.c branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/tree-ssa/vrp29.c - copied unchanged from r114507, trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp29.c Modified: branches/gcc-4_1-branch/gcc/ChangeLog branches/gcc-4_1-branch/gcc/testsuite/ChangeLog branches/gcc-4_1-branch/gcc/tree-vrp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26998
