http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49472
--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-04 21:09:28 UTC --- Author: jakub Date: Mon Jul 4 21:09:26 2011 New Revision: 175828 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175828 Log: PR rtl-optimization/49472 * simplify-rtx.c (simplify_unary_operation_1) <case NEG>: When negating MULT, negate the second operand instead of first. (simplify_binary_operation_1) <case MULT>: If one operand is a NEG and the other is MULT, don't attempt to optimize by negation of the MULT operand if it only moves the NEG operation around. * gfortran.dg/pr49472.f90: New test. Added: branches/gcc-4_6-branch/gcc/testsuite/gfortran.dg/pr49472.f90 Modified: branches/gcc-4_6-branch/gcc/ChangeLog branches/gcc-4_6-branch/gcc/simplify-rtx.c branches/gcc-4_6-branch/gcc/testsuite/ChangeLog