Mesa (master): i965/vs: Fix implied_mrf_writes() for integer division pre-gen6.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 6220cc931f15ddb428ea481e8b9a70ce26ca3304
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6220cc931f15ddb428ea481e8b9a70ce26ca3304

Author: Eric Anholt <eric at anholt.net>
Date:   Tue May 28 14:35:19 2013 -0700

i965/vs: Fix implied_mrf_writes() for integer division pre-gen6.

Previously it would assertion fail in debug builds (though the correct
value was returned in a non-debug build).  Marking it as a candidate for
stable even though it has no current consumers in the stable branches, in
case one shows up in a later backport.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64727
NOTE: This is a candidate for stable branches.
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_vec4.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index c5aa338..4295e6e 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -247,6 +247,8 @@ vec4_visitor::implied_mrf_writes(vec4_instruction *inst)
    case SHADER_OPCODE_SIN:
    case SHADER_OPCODE_COS:
       return 1;
+   case SHADER_OPCODE_INT_QUOTIENT:
+   case SHADER_OPCODE_INT_REMAINDER:
    case SHADER_OPCODE_POW:
       return 2;
    case VS_OPCODE_URB_WRITE: