gl_LocalGroupSizeARB can be translated into TGSI_SEMANTIC_BLOCK_SIZE
which represents the block size in threads.

Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
 src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp 
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 507a782..429f4b0 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5235,6 +5235,8 @@ _mesa_sysval_to_semantic(unsigned sysval)
       return TGSI_SEMANTIC_BLOCK_ID;
    case SYSTEM_VALUE_NUM_WORK_GROUPS:
       return TGSI_SEMANTIC_GRID_SIZE;
+   case SYSTEM_VALUE_LOCAL_GROUP_SIZE:
+      return TGSI_SEMANTIC_BLOCK_SIZE;
 
    /* Unhandled */
    case SYSTEM_VALUE_LOCAL_INVOCATION_INDEX:
-- 
2.9.3

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