swr: [rasterizer core] SIMD16 Frontend WIP - PA
swr: [rasterizer core] SIMD16 Frontend WIP - PA

Fix PA NextPrim for SIMD8 on SIMD16.

Reviewed-by: Bruce Cherniak <a5345730962d952f474b19e983398300e1cb5f29@intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler