R600: config section now reports use of killgt
R600: Clean up instruction class definitions
R600: Add some new processor variants
Rewrite test in FileCheck instead of grep in X86 codegen
R600: Add FetchInst bit to instruction defs to denote vertex/tex instructions

v2[Vincent Lejeune]: Split FetchInst into usesTextureCache/usesVertexCache
R600: Turn TEX/VTX into native instructions