Hi,
Am Freitag 29 Februar 2008 09:31:12 schrieb Michel Dänzer:
> On Thu, 2008-02-28 at 21:11 +0100, [EMAIL PROTECTED] wrote:
> > My gcc-4.3 miscompiles something with -O3, so glxinfo crashes in tgsi.
> > Maybe this is related to this warning:
> >
> > gcc -mcpu=cell -c -I. -I../../../../src/gallium/include
> > -I../../../../src/gallium/auxiliary -I../../../../src/gallium/drivers
> > -I../../../../include -g -O2 -ftree-vectorize -ffast-math -Wall -Winline
> > -fPIC -m32 -mabi=altivec -maltivec -I.
> > -I/opt/ibm/cell-sdk/prototype/sysroot/usr/include -DGALLIUM_CELL
> > util/tgsi_build.c -o util/tgsi_build.o
> > util/tgsi_build.c: In function ‘tgsi_compare_instruction_ext_nv’:
> > util/tgsi_build.c:851: warning: dereferencing type-punned pointer will
> > break strict-aliasing rules
>
> You should be able to verify that by adding -fno-strict-aliasing.
ok - this fixes the crash, but fps goes down:
-O2: 75 fps
-O3 -fno-strict-aliasing: 65 fps.
Thanks
Marvin
--
"Our cause has a sacred nature.", Lord Arthur Ponsonby,
"Falsehood in Wartime: Propaganda Lies of the First World War", 1928
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