linker: Link built-in functions instead of including them in every shader

This is an invasive set of changes.  Each user shader tracks a set of other
shaders that contain built-in functions.  During compilation, function
prototypes are imported from these shaders.  During linking, the
shaders are linked with these built-in-function shaders just like with
any other shader.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 729c2eaf0fd..f8257d565bf 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1971,6 +1971,10 @@ struct gl_shader
 
    struct exec_list *ir;
    struct glsl_symbol_table *symbols;
+
+   /** Shaders containing built-in functions that are used for linking. */
+   struct gl_shader *builtins_to_link[16];
+   unsigned num_builtins_to_link;
 };