<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - radv: VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT and bringing down initial pipeline compile times" href="https://bugs.freedesktop.org/show_bug.cgi?id=106246#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - radv: VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT and bringing down initial pipeline compile times" href="https://bugs.freedesktop.org/show_bug.cgi?id=106246">bug 106246</a> from <a class="email" href="mailto:t_arceri@yahoo.com.au" title="Timothy Arceri <t_arceri@yahoo.com.au>"> Timothy Arceri</a> <pre>(In reply to Nicolai Hähnle from <a href="show_bug.cgi?id=106246#c3">comment #3</a>) > As long as scratch buffer support is robust, removing LLVM IR optimization > passes is probably not a problem, though you really do want mem2reg and I > don't think we spend much time in the others (at least radeonsi didn't, last > time I checked). > > Using the -O0 settings for the codegen backend is a lot riskier. Our compute > folks have done some work fixing bugs there, but I really wouldn't recommend > it. Yeah I've done some experimenting with the Blacksmith demo. I'm not sure we can get much benefit implementing VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT with the current state of things. Default: Sum of shader compile times: 325933 ms With only LLVM DCE opt (compilation fails without this): Sum of shader compile times: 326451 ms No NIR linking plus single pass over NIR opts (compilation fails without this): Sum of shader compile times: 294788 ms</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>