> ince except for Bonnell, > > 01 fb add %edi,%ebx > > is faster and shorter than > > 8d 1c 1f lea (%rdi,%rbx,1),%ebx > > we should use add for a = a + b and a = b + a when possible if not > optimizing for Bonnell. > > Tested on x86-64. > > gcc/ > > PR target/92807 > * config/i386/i386.c (ix86_lea_outperforms): Check !TARGET_BONNELL. > (ix86_avoid_lea_for_addr): When not optimizing for Bonnell, use add > for a = a + b and a = b + a. > > gcc/testsuite/ > > PR target/92807 > * gcc.target/i386/pr92807-1.c: New test.
LGTM. Thanks, Uros.
