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, 3 insertions, 0 deletions

diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp
index a2b2eb95c8..bfb8e3201a 100644
--- a/src/mesa/shader/ir_to_mesa.cpp
+++ b/src/mesa/shader/ir_to_mesa.cpp
@@ -2207,6 +2207,9 @@ _mesa_glsl_compile_shader(GLcontext *ctx, struct gl_shader *shader)
    shader->CompileStatus = !state->error;
    shader->InfoLog = state->info_log;
    shader->Version = state->language_version;
+   memcpy(shader->builtins_to_link, state->builtins_to_link,
+	  sizeof(shader->builtins_to_link[0]) * state->num_builtins_to_link);
+   shader->num_builtins_to_link = state->num_builtins_to_link;
 
    /* Retain any live IR, but trash the rest. */
    reparent_ir(shader->ir, shader);