nir/info: Add compute shader local size to nir_shader_info

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

src/glsl/nir/glsl_to_nir.cpp

@@ -173,6 +173,14 @@ glsl_to_nir(const struct gl_shader_program *shader_prog,
       shader->info.gs.invocations = sh->Geom.Invocations;
       break;
 
+   case MESA_SHADER_COMPUTE: {
+      struct gl_compute_program *cp = (struct gl_compute_program *)sh->Program;
+      shader->info.cs.local_size[0] = cp->LocalSize[0];
+      shader->info.cs.local_size[1] = cp->LocalSize[1];
+      shader->info.cs.local_size[2] = cp->LocalSize[2];
+      break;
+   }
+
    default:
       break; /* No stage-specific info */
    }

src/glsl/nir/nir.h

@@ -1501,6 +1501,10 @@ typedef struct nir_shader_info {
          /** 1 .. MAX_GEOMETRY_SHADER_INVOCATIONS */
          unsigned invocations;
       } gs;
+
+      struct {
+         unsigned local_size[3];
+      } cs;
    };
 } nir_shader_info;