------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-24
17:38 -------
On the mainline we get:
_ZN5foo_tIfE7bar_refEff:
.LFB661:
ucomiss 4(%rdi), %xmm1
leaq -8(%rsp), %rdx
leaq 4(%rdi), %rax
movss %xmm0, -4(%rsp)
movss %xmm1, -8(%rsp)
cmova %rdx, %rax
ucomiss (%rdi), %xmm1
movss (%rax), %xmm0
minss -4(%rsp), %xmm0
cmova %rdi, %rdx
movss (%rdx), %xmm1
maxss %xmm1, %xmm0
ret
But on the tree level, there are a couple of issues.
The first is that, we have
a_1 = &b_2->c;
temp_3 = *a_1;
...
use a_1
Which really should be converted to
temp_3 = b_2->c;
Which will help.
--
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |tree-optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21463
