nir: Add a a nir_shader_info struct

This commit also adds code to glsl_to_nir and prog_to_nir to fill it out.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h
index bf5d41d43a9..0c06d675a4d 100644
--- a/src/glsl/nir/nir.h
+++ b/src/glsl/nir/nir.h
@@ -1454,6 +1454,37 @@ typedef struct nir_shader_compiler_options {
    bool native_integers;
 } nir_shader_compiler_options;
 
+typedef struct nir_shader_info {
+   const char *name;
+
+   /* Number of textures used by this shader */
+   unsigned num_textures;
+   /* Number of uniform buffers used by this shader */
+   unsigned num_ubos;
+   /* Number of atomic buffers used by this shader */
+   unsigned num_abos;
+   /* Number of shader storage buffers used by this shader */
+   unsigned num_ssbos;
+   /* Number of images used by this shader */
+   unsigned num_images;
+
+   /* Which inputs are actually read */
+   uint64_t inputs_read;
+   /* Which outputs are actually written */
+   uint64_t outputs_written;
+   /* Which system values are actually read */
+   uint64_t system_values_read;
+
+   /* Whether or not this shader ever uses textureGather() */
+   bool uses_texture_gather;
+
+   /* Whether or not this shader uses the gl_ClipDistance output */
+   bool uses_clip_distance_out;
+
+   /* Whether or not separate shader objects were used */
+   bool separate_shader;
+} nir_shader_info;
+
 typedef struct nir_shader {
    /** list of uniforms (nir_variable) */
    struct exec_list uniforms;
@@ -1471,6 +1502,9 @@ typedef struct nir_shader {
     */
    const struct nir_shader_compiler_options *options;
 
+   /** Various bits of compile-time information about a given shader */
+   struct nir_shader_info info;
+
    /** list of global variables in the shader (nir_variable) */
    struct exec_list globals;