gallium: Add a PREDICATE register file.

There's already a shader token that allows composition of predicated
instructions (tgsi_instruction_ext_predicate). However, there is no way
one can write to thos predicate registers in the first place.
---
 src/gallium/include/pipe/p_shader_tokens.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/gallium/include/pipe/p_shader_tokens.h 
b/src/gallium/include/pipe/p_shader_tokens.h
index de338c4..6aa8b27 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -79,6 +79,7 @@ enum tgsi_file_type {
    TGSI_FILE_ADDRESS     =6,
    TGSI_FILE_IMMEDIATE   =7,
    TGSI_FILE_LOOP        =8,
+   TGSI_FILE_PREDICATE   =9,
    TGSI_FILE_COUNT      /**< how many TGSI_FILE_ types */
 };
 
-- 
1.6.4.msysgit.0


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