http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58564
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Mon Sep 30 20:16:14 2013 New Revision: 203043 URL: http://gcc.gnu.org/viewcvs?rev=203043&root=gcc&view=rev Log: PR middle-end/58564 * fold-const.c (fold_ternary_loc): For A < 0 : <sign bit of A> : 0 optimization, punt if sign_bit_p looked through any zero extension. * gcc.c-torture/execute/pr58564.c: New test. Added: branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr58564.c Modified: branches/gcc-4_8-branch/gcc/ChangeLog branches/gcc-4_8-branch/gcc/fold-const.c branches/gcc-4_8-branch/gcc/testsuite/ChangeLog