------- Comment #22 from rguenth at gcc dot gnu dot org 2006-06-16 14:56 ------- Subject: Bug 27116
Author: rguenth Date: Fri Jun 16 14:56:34 2006 New Revision: 114723 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114723 Log: 2006-06-16 Richard Guenther <[EMAIL PROTECTED]> PR middle-end/27116 * fold-const.c (negate_expr_p): Do not introduce undefined overflow in negating INTEGER_CSTs. (fold_negate_expr): Rename from negate_expr. Revert last change for folding BIT_NOT_EXPR. Change semantics to return NULL_TREE for non-simplified negations. Do not strip type conversions and unify type handling. (negate_expr): New function, wrap around fold_negate_expr but ensure building a tree always. Strip type conversions here, fold to result type. (fold_unary): Use fold_negate_expr for folding NEGATE_EXPR. * gcc.dg/pr15785-1.c: Revert last change. * gcc.dg/torture/pr27116-2.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr27116-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/fold-const.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/pr15785-1.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27116
