From: Matt Turner <mattst88@gmail.com>
Date: Sat, 20 Dec 2014 21:17:00 +0000 (-0800)
Subject: i965/vec4: Do CSE, copy propagation, and DCE after opt_vector_float().
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bbdd3198a5f778ba55c037e4af86d88b06ca4e95;p=mesa.git

i965/vec4: Do CSE, copy propagation, and DCE after opt_vector_float().

total instructions in shared programs: 5869005 -> 5868220 (-0.01%)
instructions in affected programs:     70208 -> 69423 (-1.12%)

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

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 4a0f5120c10..296223ccdd0 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1798,7 +1798,11 @@ vec4_visitor::run()
       OPT(opt_register_coalesce);
    } while (progress);
 
-   opt_vector_float();
+   if (opt_vector_float()) {
+      opt_cse();
+      opt_copy_propagation();
+      dead_code_eliminate();
+   }
 
    if (failed)
       return false;