https://gcc.gnu.org/bugzilla/show_bug.cgi?id=22041
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2013-03-17 12:00:00 |2016-8-30
--- Comment #9 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Still the same - we have an additional instruction in the first
variant. It is
movss (%rsi), %xmm0
addl $1, %eax
addq %r8, %rsi
movss %xmm0, (%rdi)
addq %rcx, %rdi
cmpl %eax, %edx
jne .L3
vs.
.L3:
movss (%rsi), %xmm0
addq %r8, %rsi
movss %xmm0, (%rdi)
addq %rcx, %rdi
subl $1, %edx
jne .L3
