https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85300
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Tue Apr 10 15:31:57 2018 New Revision: 259285 URL: https://gcc.gnu.org/viewcvs?rev=259285&root=gcc&view=rev Log: PR rtl-optimization/85300 * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if simplify_unary_operation fails. * gcc.dg/pr85300.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr85300.c Modified: trunk/gcc/ChangeLog trunk/gcc/combine.c trunk/gcc/testsuite/ChangeLog