Mesa (master): i965/fs: Add support for discard instructions in 16-wide mode.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 76b7a0c1af23838cb5100424a2a88d621b881d05
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=76b7a0c1af23838cb5100424a2a88d621b881d05

Author: Eric Anholt <eric at anholt.net>
Date:   Thu Mar 24 09:15:55 2011 -0700

i965/fs: Add support for discard instructions in 16-wide mode.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_fs.cpp |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index aa7b1be..bb71463 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2475,6 +2475,7 @@ fs_visitor::generate_discard_not(fs_inst *inst, struct brw_reg mask)
    } else {
       brw_push_insn_state(p);
       brw_set_mask_control(p, BRW_MASK_DISABLE);
+      brw_set_compression_control(p, BRW_COMPRESSION_NONE);
       brw_NOT(p, mask, brw_mask_reg(1)); /* IMASK */
       brw_pop_insn_state(p);
    }
@@ -2499,6 +2500,7 @@ fs_visitor::generate_discard_and(fs_inst *inst, struct brw_reg mask)
 
       brw_push_insn_state(p);
       brw_set_mask_control(p, BRW_MASK_DISABLE);
+      brw_set_compression_control(p, BRW_COMPRESSION_NONE);
       brw_AND(p, g1, f0, g1);
       brw_pop_insn_state(p);
    } else {
@@ -2508,6 +2510,7 @@ fs_visitor::generate_discard_and(fs_inst *inst, struct brw_reg mask)
 
       brw_push_insn_state(p);
       brw_set_mask_control(p, BRW_MASK_DISABLE);
+      brw_set_compression_control(p, BRW_COMPRESSION_NONE);
       brw_AND(p, g0, mask, g0);
       brw_pop_insn_state(p);
    }