microsoft/compiler: Make nir_var_to_dxil_sysvalue_type static

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20346>

src/microsoft/compiler/dxil_nir.c

@@ -1683,6 +1683,35 @@ dxil_sort_ps_outputs(nir_shader* s)
    }
 }
 
+enum dxil_sysvalue_type {
+   DXIL_NO_SYSVALUE = 0,
+   DXIL_SYSVALUE,
+   DXIL_GENERATED_SYSVALUE
+};
+
+static enum dxil_sysvalue_type
+nir_var_to_dxil_sysvalue_type(nir_variable *var, uint64_t other_stage_mask)
+{
+   switch (var->data.location) {
+   case VARYING_SLOT_FACE:
+      return DXIL_GENERATED_SYSVALUE;
+   case VARYING_SLOT_POS:
+   case VARYING_SLOT_PRIMITIVE_ID:
+   case VARYING_SLOT_CLIP_DIST0:
+   case VARYING_SLOT_CLIP_DIST1:
+   case VARYING_SLOT_PSIZ:
+   case VARYING_SLOT_TESS_LEVEL_INNER:
+   case VARYING_SLOT_TESS_LEVEL_OUTER:
+   case VARYING_SLOT_VIEWPORT:
+   case VARYING_SLOT_LAYER:
+      if (!((1ull << var->data.location) & other_stage_mask))
+         return DXIL_SYSVALUE;
+      FALLTHROUGH;
+   default:
+      return DXIL_NO_SYSVALUE;
+   }
+}
+
 /* Order between stage values so that normal varyings come first,
  * then sysvalues and then system generated values.
  */

src/microsoft/compiler/nir_to_dxil.c

@@ -6232,26 +6232,3 @@ out:
    free(ctx);
    return retval;
 }
-
-enum dxil_sysvalue_type
-nir_var_to_dxil_sysvalue_type(nir_variable *var, uint64_t other_stage_mask)
-{
-   switch (var->data.location) {
-   case VARYING_SLOT_FACE:
-      return DXIL_GENERATED_SYSVALUE;
-   case VARYING_SLOT_POS:
-   case VARYING_SLOT_PRIMITIVE_ID:
-   case VARYING_SLOT_CLIP_DIST0:
-   case VARYING_SLOT_CLIP_DIST1:
-   case VARYING_SLOT_PSIZ:
-   case VARYING_SLOT_TESS_LEVEL_INNER:
-   case VARYING_SLOT_TESS_LEVEL_OUTER:
-   case VARYING_SLOT_VIEWPORT:
-   case VARYING_SLOT_LAYER:
-      if (!((1ull << var->data.location) & other_stage_mask))
-         return DXIL_SYSVALUE;
-      FALLTHROUGH;
-   default:
-      return DXIL_NO_SYSVALUE;
-   }
-}

src/microsoft/compiler/nir_to_dxil.h

@@ -35,15 +35,6 @@ extern "C" {
 
 struct blob;
 
-enum dxil_sysvalue_type {
-   DXIL_NO_SYSVALUE = 0,
-   DXIL_SYSVALUE,
-   DXIL_GENERATED_SYSVALUE
-};
-
-enum dxil_sysvalue_type
-nir_var_to_dxil_sysvalue_type(nir_variable *var, uint64_t other_stage_mask);
-
 /* Controls how resource decls/accesses are handled. Common to all:
  *   Images, textures, and samplers map to D3D UAV, SRV, and sampler types
  *   Shared is lowered to explicit I/O and then to a DXIL-specific intrinsic for 4-byte indices instead of byte addressing