compiler: add SYSTEM_VALUE_VARYING_COORD

Used internally in freedreno/ir3 for the vec2 value that hw passes to
shader to use as coordinate for bary.f (varying fetch) instruction.
This is not the same as SYSTEM_VALUE_FRAG_COORD.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/compiler/shader_enums.h b/src/compiler/shader_enums.h
index f8e22925f35..5c36f55283c 100644
--- a/src/compiler/shader_enums.h
+++ b/src/compiler/shader_enums.h
@@ -601,6 +601,12 @@ typedef enum
     */
    SYSTEM_VALUE_VERTEX_CNT,
 
+   /**
+    * Driver internal varying-coord, used for varying-fetch instructions.
+    * Not externally visible.
+    */
+   SYSTEM_VALUE_VARYING_COORD,
+
    SYSTEM_VALUE_MAX             /**< Number of values */
 } gl_system_value;