On 04/11/2016 04:30 PM, Brian Paul wrote:
Instead of using an array indexed by SYSTEM_VALUE_x, just use a
switch statement.  This fixes a regression caused by inserting new
SYSTEM_VALUE_ enums but not updating the mapping to TGSI semantics.
---
  src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 132 ++++++++++++++---------------
  src/mesa/state_tracker/st_glsl_to_tgsi.h   |   3 +-
  src/mesa/state_tracker/st_mesa_to_tgsi.c   |   2 +-
  3 files changed, 69 insertions(+), 68 deletions(-)

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp 
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index b9ab7ae..e6df51f 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5192,43 +5192,72 @@ struct st_translate {
  };

  /** Map Mesa's SYSTEM_VALUE_x to TGSI_SEMANTIC_x */
-const unsigned _mesa_sysval_to_semantic[SYSTEM_VALUE_MAX] = {
-   /* Vertex shader
-    */
-   TGSI_SEMANTIC_VERTEXID,
-   TGSI_SEMANTIC_INSTANCEID,
-   TGSI_SEMANTIC_VERTEXID_NOBASE,
-   TGSI_SEMANTIC_BASEVERTEX,
-   TGSI_SEMANTIC_BASEINSTANCE,
-   TGSI_SEMANTIC_DRAWID,
-
-   /* Geometry shader
-    */
-   TGSI_SEMANTIC_INVOCATIONID,
-
-   /* Fragment shader
-    */
-   TGSI_SEMANTIC_POSITION,
-   TGSI_SEMANTIC_FACE,
-   TGSI_SEMANTIC_SAMPLEID,
-   TGSI_SEMANTIC_SAMPLEPOS,
-   TGSI_SEMANTIC_SAMPLEMASK,
-   TGSI_SEMANTIC_HELPER_INVOCATION,
-
-   /* Tessellation shaders
-    */
-   TGSI_SEMANTIC_TESSCOORD,
-   TGSI_SEMANTIC_VERTICESIN,
-   TGSI_SEMANTIC_PRIMID,
-   TGSI_SEMANTIC_TESSOUTER,
-   TGSI_SEMANTIC_TESSINNER,
+unsigned
+_mesa_sysval_to_semantic(unsigned sysval)
+{
+   switch (sysval) {
+   /* Vertex shader */
+   case SYSTEM_VALUE_VERTEX_ID:
+      return TGSI_SEMANTIC_VERTEXID;
+   case SYSTEM_VALUE_INSTANCE_ID:
+      return TGSI_SEMANTIC_INSTANCEID;
+   case SYSTEM_VALUE_VERTEX_ID_ZERO_BASE:
+      return TGSI_SEMANTIC_VERTEXID_NOBASE;
+   case SYSTEM_VALUE_BASE_VERTEX:
+      return TGSI_SEMANTIC_BASEVERTEX;
+   case SYSTEM_VALUE_BASE_INSTANCE:
+      return TGSI_SEMANTIC_BASEINSTANCE;
+   case SYSTEM_VALUE_DRAW_ID:
+      return TGSI_SEMANTIC_DRAWID;
+
+   /* Geometry shader */
+   case SYSTEM_VALUE_INVOCATION_ID:
+      return TGSI_SEMANTIC_INVOCATIONID;
+
+   /* Fragment shader */
+   case SYSTEM_VALUE_FRAG_COORD:
+      return TGSI_SEMANTIC_POSITION;
+   case SYSTEM_VALUE_FRONT_FACE:
+      return TGSI_SEMANTIC_FACE;
+   case SYSTEM_VALUE_SAMPLE_ID:
+      return TGSI_SEMANTIC_SAMPLEID;
+   case SYSTEM_VALUE_SAMPLE_POS:
+      return TGSI_SEMANTIC_SAMPLEPOS;
+   case SYSTEM_VALUE_SAMPLE_MASK_IN:
+      return TGSI_SEMANTIC_SAMPLEMASK;
+   case SYSTEM_VALUE_HELPER_INVOCATION:
+      return TGSI_SEMANTIC_HELPER_INVOCATION;
+
+   /* Tessellation shader */
+   case SYSTEM_VALUE_TESS_COORD:
+      return TGSI_SEMANTIC_TESSCOORD;
+   case SYSTEM_VALUE_VERTICES_IN:
+      return TGSI_SEMANTIC_VERTICESIN;
+   case SYSTEM_VALUE_PRIMITIVE_ID:
+      return TGSI_SEMANTIC_PRIMID;
+   case SYSTEM_VALUE_TESS_LEVEL_OUTER:
+      return TGSI_SEMANTIC_TESSOUTER;
+   case SYSTEM_VALUE_TESS_LEVEL_INNER:
+      return TGSI_SEMANTIC_TESSINNER;
+
+   /* Compute shader */
+   case SYSTEM_VALUE_GLOBAL_INVOCATION_ID:
+   case SYSTEM_VALUE_WORK_GROUP_ID:
+      return TGSI_SEMANTIC_THREAD_ID;
+   case SYSTEM_VALUE_NUM_WORK_GROUPS:
+      return TGSI_SEMANTIC_BLOCK_ID;
+   case SYSTEM_VALUE_VERTEX_CNT:
+      return TGSI_SEMANTIC_GRID_SIZE;

Disregard this.  I see I have a few mistakes.

-Brian


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