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* [Bug tree-optimization/39200] ivopts slows down SciMark sparse matrix benchmark
[not found] <bug-39200-4@http.gcc.gnu.org/bugzilla/>
@ 2013-11-19 16:08 ` amker.cheng at gmail dot com
2013-11-19 16:37 ` bonzini at gnu dot org
1 sibling, 0 replies; 2+ messages in thread
From: amker.cheng at gmail dot com @ 2013-11-19 16:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39200
bin.cheng <amker.cheng at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |amker.cheng at gmail dot com
--- Comment #1 from bin.cheng <amker.cheng at gmail dot com> ---
This is pretty old.
I tried latest trunk with revision r205025.
gcc -O2 -march=pentium4 [-fomit-frame-pointer]
.L7:
movl (%esi,%eax,4), %edx
fldl (%edi,%edx,8)
fmull (%ebx,%eax,8)
faddp %st, %st(1)
addl $1, %eax
cmpl %ecx, %eax
jne .L7
gcc -O2 -march=pentium4 [-fomit-frame-pointer] -fno-ivopts
.L7:
movl (%esi,%eax,4), %edx
fldl (%edi,%edx,8)
fmull (%ebx,%eax,8)
faddp %st, %st(1)
addl $1, %eax
cmpl %eax, %ecx
jg .L7
Also works for default arch in my configuration.
Should this be considered fixed?
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/39200] ivopts slows down SciMark sparse matrix benchmark
[not found] <bug-39200-4@http.gcc.gnu.org/bugzilla/>
2013-11-19 16:08 ` [Bug tree-optimization/39200] ivopts slows down SciMark sparse matrix benchmark amker.cheng at gmail dot com
@ 2013-11-19 16:37 ` bonzini at gnu dot org
1 sibling, 0 replies; 2+ messages in thread
From: bonzini at gnu dot org @ 2013-11-19 16:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39200
Paolo Bonzini <bonzini at gnu dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Paolo Bonzini <bonzini at gnu dot org> ---
Fixed per comment 1.
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-39200-4@http.gcc.gnu.org/bugzilla/>
2013-11-19 16:08 ` [Bug tree-optimization/39200] ivopts slows down SciMark sparse matrix benchmark amker.cheng at gmail dot com
2013-11-19 16:37 ` bonzini at gnu dot org
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