On Wed, Mar 19, 2014 at 3:16 PM, Matt Turner <matts...@gmail.com> wrote: > - Does the broken behavior depend on the hardware generation? I.e., > broken on Ivy Bridge and Haswell but not Ironlake? > - There are ~12 math ops. Are the dependency control hints broken for > all of them, or just exp2?
The problem with NoDDClr and NoDDChk are the same on Ivy Bridge and Haswell. It doesn't happen with Ironlake because compiling for Ironlake uses send instead of math opcodes. Using send means that it also avoids using NoDDClr and NoDDChk. Mutating my piglit shader_runner test shows the same problem occurs for math with exp2, log, rsq, sqrt, and sin. I didn't create test cases for the two operand opcodes. But I am not optimistic about them. -- Mike Stroyan - Software Architect LunarG, Inc. - The Graphics Experts Cell: (970) 219-7905 Email: m...@lunarg.com Website: http://www.lunarg.com
_______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
