http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18589
William J. Schmidt wschmidt at gcc dot gnu.org changed:
What|Removed |Added
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18589
Richard Guenther rguenth at gcc dot gnu.org changed:
What|Removed |Added
CC||rguenth at
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18589
--- Comment #7 from William J. Schmidt wschmidt at gcc dot gnu.org 2012-01-09
13:06:34 UTC ---
Sure, I'll at least have a look at it when I get some time.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18589
Andrew Pinski pinskia at gcc dot gnu.org changed:
What|Removed |Added
Last reconfirmed|2005-12-21 03:49:53 |2012-01-04
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--- Comment #4 from pinskia at gcc dot gnu dot org 2006-03-05 17:43 ---
In 4.2.0 and above we get:
baz:
.LFB2:
mulsd %xmm1, %xmm0
mulsd %xmm0, %xmm0
mulsd %xmm0, %xmm0
ret
Which is what I recommend but we don't get that on the tree level:
return
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Last reconfirmed|2005-09-20 18:42:10 |2005-12-21 03:49:53
date||
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Bug 18589 depends on bug 22312, which changed state.
Bug 22312 Summary: reassoc does not handle (i+j)+(k+l) well
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22312
What|Old Value |New Value
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-07-05
19:37 ---
I think PR 22312 mentions what the current problem with reassoc is (well once I
submit the patch to
introduce reassociation for fp).
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What|Removed |Added
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-12
06:50 ---
This is actually not a target issue, it can be shown on ppc also and other
targets including x86.
doing (f1*f2)^2^2 will be the best every where as it is only three instructions
and it would take the
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