mesa: Add a reference to gl_shader_spirv_data to gl_linked_shader

This is a reference to the spirv_data object stored in gl_shader, which
stores shader SPIR-V data that is needed during linking too.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

src/mesa/main/mtypes.h

@@ -2651,6 +2651,14 @@ struct gl_linked_shader
    struct exec_list *packed_varyings;
    struct exec_list *fragdata_arrays;
    struct glsl_symbol_table *symbols;
+
+   /**
+    * ARB_gl_spirv related data.
+    *
+    * This is actually a reference to the gl_shader::spirv_data, which
+    * stores information that is also needed during linking.
+    */
+   struct gl_shader_spirv_data *spirv_data;
 };
 
 

src/mesa/main/shaderobj.c

@@ -137,6 +137,7 @@ void
 _mesa_delete_linked_shader(struct gl_context *ctx,
                            struct gl_linked_shader *sh)
 {
+   _mesa_shader_spirv_data_reference(&sh->spirv_data, NULL);
    _mesa_reference_program(ctx, &sh->Program, NULL);
    ralloc_free(sh);
 }