From: Eric Anholt <eric@anholt.net>
Date: Wed, 12 Jan 2011 17:40:05 +0000 (-0800)
Subject: i965/vs: When MOVing to produce ABS, strip negate of the operand.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9351ef7a4418f5c1bb95a8f2016af0a15fa97679;p=mesa.git

i965/vs: When MOVing to produce ABS, strip negate of the operand.

We were returning the negative absolute value, instead of the absolute
value.  Fixes glsl-vs-abs-neg.
---

diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c
index fe9737d043a..0411ce0b36c 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c
@@ -1942,6 +1942,7 @@ void brw_vs_emit(struct brw_vs_compile *c )
 
       switch (inst->Opcode) {
       case OPCODE_ABS:
+	 args[0].negate = false;
 	 brw_MOV(p, dst, brw_abs(args[0]));
 	 break;
       case OPCODE_ADD: