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[Octave-bug-tracker] [bug #31047] DLD-FUNCTIONS/fltk_backend.cc:467: err
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #31047] DLD-FUNCTIONS/fltk_backend.cc:467: error: unable to find a register to spill in class ‘MMX_REGS’ |
Date: |
Sun, 07 Nov 2010 23:42:38 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101027 Ubuntu/9.10 (karmic) Firefox/3.6.12 |
Follow-up Comment #4, bug #31047 (project octave):
Comparison with my compilation on a Linux machine reveals a few things to try
changing in your CFLAGS/CXXFLAGS variable.
"-arch i386"
This option doesn't exist on non-Darwin platforms like mine. However, if it
accepts the same arguments as -march, then I would use '-arch=native' and let
the compiler figure out what MMX instructions it can use.
"-O"
You are using the equivalent of "-O1". GCC is warning that it can't find
enough registers to use. Sometimes by using more optimization the compiler
can find a way to share registers more efficiently and therefore free up some
for use. I would try compiling with "-O2".
"-fforce-addr"
I don't have this turned on. It might be worth removing this to see if it is
causing the issue.
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