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* [Bug middle-end/35288] Expression reassociation problem
[not found] <bug-35288-4@http.gcc.gnu.org/bugzilla/>
@ 2010-11-02 23:40 ` xinliangli at gmail dot com
2021-12-23 8:14 ` [Bug tree-optimization/35288] " pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: xinliangli at gmail dot com @ 2010-11-02 23:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35288
--- Comment #2 from davidxl <xinliangli at gmail dot com> 2010-11-02 23:40:15 UTC ---
LLVM got it right:
addl %esi, %edi
leal (%rdx,%rdi,2), %eax
vs gcc:
addl %esi, %edx
leal (%rsi,%rdi,2), %edi
leal (%rdi,%rdx), %eax
vs open64:
leal 0(%rdi,%rsi,1), %eax # [0]
addl %esi,%edx # [0]
addl %edx,%edi # [1]
addl %edi,%eax # [2]
David
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/35288] Expression reassociation problem
[not found] <bug-35288-4@http.gcc.gnu.org/bugzilla/>
2010-11-02 23:40 ` [Bug middle-end/35288] Expression reassociation problem xinliangli at gmail dot com
@ 2021-12-23 8:14 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-23 8:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35288
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Component|middle-end |tree-optimization
Keywords| |missed-optimization
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
If we use -fwrapv, then GCC is able to get it. THere might be a dup of this bug
already too.
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-35288-4@http.gcc.gnu.org/bugzilla/>
2010-11-02 23:40 ` [Bug middle-end/35288] Expression reassociation problem xinliangli at gmail dot com
2021-12-23 8:14 ` [Bug tree-optimization/35288] " pinskia at gcc dot gnu.org
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