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Fixed in r2010. It was due to my misplaced faith in GCC. The sad fix is to copy the value passed into set into a volatile copy that is used by the assembly.

On Jan 28, 2008, at 10:36 AM, Abe Stephens wrote:

I think MANTA_X86 (MachineParameters.h) is being defined on x86_64 machines when presumably it shouldn't be. The causes a different version of AtomicCounter to be included and breaks something (probably work assignment).

Abe

On Jan 28, 2008 10:22 AM, Abe Stephens <abe@sci.utah.edu> wrote:
I get something similar (most of the image missing). This is on a 64 bit gcc 4.1.2 build.

It looks like the problem was introduced in r2005 in a change to Thread_pthreads.cc (looking more closely too).

Abe


On Jan 28, 2008 9:14 AM, Thiago Ize <thiago@cs.utah.edu> wrote:
Hi, when I compile manta with gcc and -m64 or with either the 32 or 64
bit version of icc I get about 450fps on leopard. That's great, except
that the "optimization" results in a black screen. 32bit gcc on leopard
still works. Before I spend time trying to debug this, has anyone else
encountered this or know how to fix this? If not, I'll start hacking away...

Thanks,
Thiago

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• [Manta] 450fps on leopard!, Thiago Ize, 01/28/2008
  • <Possible follow-up(s)>
  • Re: [Manta] 450fps on leopard!, Abe Stephens, 01/28/2008
    • Re: [Manta] 450fps on leopard!, Solomon Boulos, 01/28/2008

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