------- Comment #4 from uros at gcc dot gnu dot org 2005-11-28 07:29 ------- Subject: Bug 20219
Author: uros Date: Mon Nov 28 07:29:43 2005 New Revision: 107597 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=107597 Log: PR middle-end/20219 * fold-const.c (fold binary) <RDIV_EXPR>: Optimize sin(x)/tan(x) as cos(x) and tan(x)/sin(x) as 1.0/cos(x) when flag_unsafe_math_optimizations is set and we don't care about NaNs or Infinities. Move x/expN(y) and x/pow(y,z) transformation into common flag_unsafe_math_optimizations section. testsuite/ * gcc.dg/builtins-20.c: Add checks for sin(x)/tan(x) and tan(x)/sin(x) transformations. Modified: trunk/gcc/ChangeLog trunk/gcc/fold-const.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/builtins-20.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20219
