r300/compiler: TEX instructions don't support negation on source arguments

This fixes piglit:
- glsl-fs-texture2d-dependent-4

NOTE: This is a candidate for the 7.9 and 7.10 branches.

diff --git a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
index 899f0d9..140eeed 100644 (file)
--- a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
@@ -77,9 +77,6 @@ static int r500_swizzle_is_native(rc_opcode opcode, struct rc_src_register reg)
                if (opcode == RC_OPCODE_KIL && (reg.Swizzle != RC_SWIZZLE_XYZW || reg.Negate != RC_MASK_NONE))
                        return 0;
 
-               if (reg.Negate)
-                       reg.Negate ^= RC_MASK_XYZW;
-
                for(i = 0; i < 4; ++i) {
                        unsigned int swz = GET_SWZ(reg.Swizzle, i);
                        if (swz == RC_SWIZZLE_UNUSED) {