glsl: Combine many instruction lowering passes into one.

This should save on the overhead of tree-walking and provide a
convenient place to add more instruction lowering in the future.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index e1cb94452d..610b7e3c3e 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -101,10 +101,12 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       clone_ir_list(mem_ctx, shader->ir, shader->base.ir);
 
       do_mat_op_to_vec(shader->ir);
-      do_mod_to_fract(shader->ir);
-      do_div_to_mul_rcp(shader->ir);
-      do_sub_to_add_neg(shader->ir);
-      do_explog_to_explog2(shader->ir);
+      lower_instructions(shader->ir,
+			 MOD_TO_FRACT |
+			 DIV_TO_MUL_RCP |
+			 SUB_TO_ADD_NEG |
+			 EXP_TO_EXP2 |
+			 LOG_TO_LOG2);
       do_lower_texture_projection(shader->ir);
       brw_do_cubemap_normalize(shader->ir);