<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BSW BXT BYT] piglit.spec.arb_shader_ballot.execution.fs-readinvocation-uint broken" href="https://bugs.freedesktop.org/show_bug.cgi?id=101984#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BSW BXT BYT] piglit.spec.arb_shader_ballot.execution.fs-readinvocation-uint broken" href="https://bugs.freedesktop.org/show_bug.cgi?id=101984">bug 101984</a> from <a class="email" href="mailto:mattst88@gmail.com" title="Matt Turner <mattst88@gmail.com>"> Matt Turner</a> <pre>I looked at this with Curro a few weeks ago, and we noticed that commenting out if ((active_set & (1ul << i)) == 0ul) continue; makes the test pass. Poking a little at it, I think the cause is shl(8) g8<1>Q g4<4,4,1>Q g2<4,4,1>UD { align1 1Q }; CHV/BXT require that the "Source and Destination horizontal stride must be aligned to the same qword." for 64-bit operations. I'll see if fixing that sorts this out.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>