------- Comment #1 from pinskia at gcc dot gnu dot org 2007-08-01 23:16 -------
Hmm, the trunk is worse than the 4.2 branch for -msse2 -mfpmath=sse.
Trunk:
.L2:
movss -4(%ebp), %xmm1
addl $1, %eax
cmpl $100, %eax
addss %xmm0, %xmm1
movss %xmm1, -8(%ebp)
movl -8(%ebp), %edx
movl %edx, -4(%ebp)
jne .L2
4.2.0:
.L2:
movaps %xmm2, %xmm0
addl $1, %eax
addss %xmm1, %xmm0
cmpl $100, %eax
movaps %xmm0, %xmm1
jne .L2
So I guess I can mark this as a regression :).
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|union cause ineffient code |[4.3 Regression] union cause
|inside loops |ineffient code inside loops
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32964
