From bb419970ef465804c0e5369264314d9d92726c18 Mon Sep 17 00:00:00 2001
From: Michal Wajdeczko <Michal.Wajdeczko@intel.com>
Date: Fri, 21 Mar 2008 13:48:12 -0700
Subject: [965] Improve pinterp performance by delaying reads of just-written
 regs.

---
 src/mesa/drivers/dri/i965/brw_wm_emit.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index 0000edda84..82ebd5c257 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -223,6 +223,10 @@ static void emit_pinterp( struct brw_compile *p,
       if (mask & (1<<i)) {
 	 brw_LINE(p, brw_null_reg(), interp[i], deltas[0]);
 	 brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]);
+      }
+   }
+   for(i = 0; i < 4; i++ ) {
+      if (mask & (1<<i)) {
 	 brw_MUL(p, dst[i], dst[i], w[3]);
       }
    }
-- 
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