Am 03.02.2015 um 02:28 schrieb Matt Turner: > Unclear circumstances lead to undefined symbols on x86. > > Bugzilla: > https://urldefense.proofpoint.com/v2/url?u=https-3A__bugs.gentoo.org_show-5Fbug.cgi-3Fid-3D536916&d=AwIGaQ&c=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEs&r=Vjtt0vs_iqoI31UfJxBl7yv9I2FeiaeAYgMTLKRBc_I&m=MGEUCqG6f2VdOqZHSyX6LIUPo4REk4_ehZWPRWGSuQI&s=faytCFpyY97_7ti4xOHK34hphsVRE0YwSdvqU3DYl2k&e= > > --- > src/gallium/auxiliary/util/u_math.h | 4 ---- > 1 file changed, 4 deletions(-) > > diff --git a/src/gallium/auxiliary/util/u_math.h > b/src/gallium/auxiliary/util/u_math.h > index 19c7343..ca6d0f1 100644 > --- a/src/gallium/auxiliary/util/u_math.h > +++ b/src/gallium/auxiliary/util/u_math.h > @@ -561,14 +561,10 @@ util_last_bit(unsigned u) > static INLINE unsigned > util_last_bit_signed(int i) > { > -#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407) && > !defined(__INTEL_COMPILER) > - return 31 - __builtin_clrsb(i); > -#else > if (i >= 0) > return util_last_bit(i); > else > return util_last_bit(~(unsigned)i); > -#endif > } > > /* Destructively loop over all of the bits in a mask as in: >
This looks like a gcc bug to me, right? If so it should probably be reported there. (I guess I can live with the patch since I have no idea if it could be narrowed down further when the builtin doesn't work but I don't especially like it.) Roland _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
