[Bug tree-optimization/18463] [4.0/4.1 Regression] suboptimal use of fancy x86 addressing modes

2005-07-07 Thread mmitchel at gcc dot gnu dot org 


-- 
   What|Removed |Added

   Target Milestone|4.0.1   |4.0.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463

[Bug tree-optimization/18463] [4.0/4.1 Regression] suboptimal use of fancy x86 addressing modes

2005-06-13 Thread pinskia at gcc dot gnu dot org 

--- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-13 
12:46 ---
On the mainline we get now:
.L4:
movl(%ebp,%edx,4), %eax
movl%eax, (%ebx,%edx,4)
movl(%esi,%edx,4), %eax
movl%eax, (%ecx,%edx,4)
incl%edx
cmpl%edx, %edi
jne .L4

Which is better but the two loads/stores are not scheduled.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463

[Bug tree-optimization/18463] [4.0/4.1 Regression] suboptimal use of fancy x86 addressing modes

2005-06-13 Thread jh at suse dot cz 

--- Additional Comments From jh at suse dot cz  2005-06-13 13:40 ---
Subject: Re:  [4.0/4.1 Regression] suboptimal use of fancy x86 addressing modes

 
 --- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-13 
 12:46 ---
 On the mainline we get now:
 .L4:
 movl(%ebp,%edx,4), %eax
 movl%eax, (%ebx,%edx,4)
 movl(%esi,%edx,4), %eax
 movl%eax, (%ecx,%edx,4)
 incl%edx
 cmpl%edx, %edi
 jne .L4
 
 Which is better but the two loads/stores are not scheduled.

-frename-registers?  But hardware will do that for you anyway.

Honza
 
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463

[Bug tree-optimization/18463] [4.0/4.1 Regression] suboptimal use of fancy x86 addressing modes

2005-04-21 Thread rakdver at gcc dot gnu dot org 

--- Additional Comments From rakdver at gcc dot gnu dot org  2005-04-21 
07:57 ---
The up-to-date version of the patch that fixes the problem:

http://gcc.gnu.org/ml/gcc-patches/2005-04/msg01360.html

-- 
   What|Removed |Added

   Keywords||patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463

[Bug tree-optimization/18463] [4.0/4.1 Regression] suboptimal use of fancy x86 addressing modes

2005-04-20 Thread mmitchel at gcc dot gnu dot org 


-- 
   What|Removed |Added

   Target Milestone|4.0.0   |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463