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-rw-r--r--src/mesa/tnl/t_vp_build.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c
index c2fd42c5332..4387e066fcd 100644
--- a/src/mesa/tnl/t_vp_build.c
+++ b/src/mesa/tnl/t_vp_build.c
@@ -460,7 +460,7 @@ static void emit_arg( struct prog_src_register *src,
src->File = reg.file;
src->Index = reg.idx;
src->Swizzle = reg.swz;
- src->NegateBase = reg.negate;
+ src->NegateBase = reg.negate ? NEGATE_XYZW : 0;
src->Abs = 0;
src->NegateAbs = 0;
src->RelAddr = 0;