http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51041
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization, ra
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-11-08
Component|other |rtl-optimization
Ever Confirmed|0 |1
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-11-08
22:31:08 UTC ---
.L10:
movsd (%rbx,%rdx,8), %xmm0
mulsd 0(%rbp,%rdx,8), %xmm0
addq $1, %rdx
cmpq $10000, %rdx
addsd %xmm0, %xmm2
jne .L10
vs:
.L10:
movsd (%rbx,%rdx,8), %xmm0
mulsd 0(%rbp,%rdx,8), %xmm0
addq $1, %rdx
cmpq $10000, %rdx
addsd (%rsp), %xmm0
movsd %xmm0, (%rsp)
jne .L10
With -fno-exceptions I get the RA to act better again.
