https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80723
--- Comment #3 from uros at gcc dot gnu.org --- Author: uros Date: Fri May 12 18:52:51 2017 New Revision: 247991 URL: https://gcc.gnu.org/viewcvs?rev=247991&root=gcc&view=rev Log: PR target/80723 * config/i386/i386.c (ix86_rtx_cost) [case PLUS]: Ignore the cost of adding a carry flag for ADC instruction. [case MINUS]: Ignore the cost of subtracting a carry flag for SBB instruction. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c