Mesa (master): i965/vec4: Use abs/negate functions in const propagation.

[Matt Turner]

Module: Mesa
Branch: master
Commit: cfa21656420c52a8c99e146314675f691e277c42
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=cfa21656420c52a8c99e146314675f691e277c42

Author: Matt Turner <mattst88 at gmail.com>
Date:   Fri Jan 30 15:13:48 2015 -0800

i965/vec4: Use abs/negate functions in const propagation.

No changes in shader-db.

Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>

---

 .../drivers/dri/i965/brw_vec4_copy_propagation.cpp   |   18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
index e25c995..638d99a 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
@@ -114,23 +114,15 @@ try_constant_propagate(struct brw_context *brw, vec4_instruction *inst,
       return false;
 
    if (inst->src[arg].abs) {
-      if (value.type == BRW_REGISTER_TYPE_F) {
-	 value.fixed_hw_reg.dw1.f = fabs(value.fixed_hw_reg.dw1.f);
-      } else if (value.type == BRW_REGISTER_TYPE_VF) {
-         value.fixed_hw_reg.dw1.ud &= ~0x80808080;
-      } else if (value.type == BRW_REGISTER_TYPE_D) {
-	 if (value.fixed_hw_reg.dw1.d < 0)
-	    value.fixed_hw_reg.dw1.d = -value.fixed_hw_reg.dw1.d;
+      if (!brw_abs_immediate(value.type, &value.fixed_hw_reg)) {
+         return false;
       }
    }
 
    if (inst->src[arg].negate) {
-      if (value.type == BRW_REGISTER_TYPE_F)
-	 value.fixed_hw_reg.dw1.f = -value.fixed_hw_reg.dw1.f;
-      else if (value.type == BRW_REGISTER_TYPE_VF)
-         value.fixed_hw_reg.dw1.ud ^= 0x80808080;
-      else
-	 value.fixed_hw_reg.dw1.ud = -value.fixed_hw_reg.dw1.ud;
+      if (!brw_negate_immediate(value.type, &value.fixed_hw_reg)) {
+         return false;
+      }
    }
 
    if (value.type == BRW_REGISTER_TYPE_VF)