tgsi: add TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/auxiliary/tgsi/tgsi_strings.c

@@ -144,6 +144,7 @@ const char *tgsi_property_names[TGSI_PROPERTY_COUNT] =
    "TES_POINT_MODE",
    "NUM_CLIPDIST_ENABLED",
    "NUM_CULLDIST_ENABLED",
+   "FS_EARLY_DEPTH_STENCIL",
 };
 
 const char *tgsi_return_type_names[TGSI_RETURN_TYPE_COUNT] =

src/gallium/docs/source/tgsi.rst

@@ -3206,6 +3206,12 @@ NUM_CULLDIST_ENABLED
 
 How many cull distance scalar outputs are enabled.
 
+FS_EARLY_DEPTH_STENCIL
+""""""""""""""""""""""
+
+Whether depth test, stencil test, and occlusion query should run before
+the fragment shader (regardless of fragment shader side effects). Corresponds
+to GLSL early_fragment_tests.
 
 Texture Sampling and Texture Formats
 ------------------------------------

src/gallium/include/pipe/p_shader_tokens.h

@@ -277,7 +277,8 @@ union tgsi_immediate_data
 #define TGSI_PROPERTY_TES_POINT_MODE         14
 #define TGSI_PROPERTY_NUM_CLIPDIST_ENABLED   15
 #define TGSI_PROPERTY_NUM_CULLDIST_ENABLED   16
-#define TGSI_PROPERTY_COUNT                  17
+#define TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL 17
+#define TGSI_PROPERTY_COUNT                  18
 
 struct tgsi_property {
    unsigned Type         : 4;  /**< TGSI_TOKEN_TYPE_PROPERTY */