From: Fabian Bieler <der.fabe@gmx.net>
Date: Fri, 25 Feb 2011 09:11:37 +0000 (+0100)
Subject: r600g: Don't negate result of ABS instruction
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b6d40213935da702570eca2c0861bd4b1d7f5254;p=mesa.git

r600g: Don't negate result of ABS instruction

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 13ccc3fdc1f..cc4491c0f75 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1014,6 +1014,8 @@ static int tgsi_op2_s(struct r600_shader_ctx *ctx, int swap)
 			break;
 		case TGSI_OPCODE_ABS:
 			alu.src[0].abs = 1;
+			/* negation is performed after absolute value is taken */
+			alu.src[0].neg = 0;
 			break;
 		default:
 			break;