intel/fs: Don't delete coalesced MOVs if they have a cmod
Shader-db results on ICL: total instructions in shared programs: 17133088 -> 17133287 (<.01%) instructions in affected programs: 61300 -> 61499 (0.32%) helped: 0 HURT: 199 This means it's likely fixing 199 bugs. :-) All the changed shaders are in Mad Max. It's surprisingly difficult to get the back-end compiler to generate a pattern that hits this we don't tend to emit a lot coalescable MOVs. The pattern in Mad Max that's able to hit is fsign(fsat(x)) under the right conditions. Closes: #2820 Cc: mesa-stable@lists.freedesktop.org Tested-by:Ian Romanick <ian.d.romanick@intel.com> Reviewed-by:
Ian Romanick <ian.d.romanick@intel.com> Part-of: <!4773>
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