ir_to_mesa: Don't forget to run the Mesa IR optimization passes.

With how we generate assignments, the trivial copy propagation in it
is really important, and some drivers will really want the register
allocation, too.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp
index d5664e7b91e..11fb7b9f16a 100644
--- a/src/mesa/shader/ir_to_mesa.cpp
+++ b/src/mesa/shader/ir_to_mesa.cpp
@@ -44,6 +44,7 @@
 extern "C" {
 #include "main/mtypes.h"
 #include "shader/prog_instruction.h"
+#include "shader/prog_optimize.h"
 #include "shader/prog_print.h"
 #include "shader/program.h"
 #include "shader/prog_uniform.h"
@@ -1675,6 +1676,10 @@ get_mesa_program(GLcontext *ctx, void *mem_ctx, struct gl_shader *shader)
 
    _mesa_reference_program(ctx, &shader->Program, prog);
 
+   if ((ctx->Shader.Flags & GLSL_NO_OPT) == 0) {
+      _mesa_optimize_program(ctx, prog);
+   }
+
    return prog;
 }