i965: Apply the same set of lowering passes to new FS as to Mesa IR.

While much of this we will want to support natively, this should make
the task of reaching the Mesa IR backend's quality easier.

Fixes:
glsl-fs-main-return.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index c324be210a..31f5bbf587 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -141,7 +141,22 @@ brw_link_shader(GLcontext *ctx, struct gl_shader_program *prog)
 	 do {
 	    progress = false;
 
+	    progress = do_lower_jumps(shader->ir, true, true,
+				      true, /* main return */
+				      false, /* continue */
+				      false /* loops */
+				      ) || progress;
+
 	    progress = do_common_optimization(shader->ir, true, 32) || progress;
+
+	    progress = lower_noise(shader->ir) || progress;
+	    progress =
+	       lower_variable_index_to_cond_assign(shader->ir,
+						   GL_TRUE, /* input */
+						   GL_TRUE, /* output */
+						   GL_TRUE, /* temp */
+						   GL_TRUE /* uniform */
+						   ) || progress;
 	 } while (progress);
 
 	 validate_ir_tree(shader->ir);