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-rw-r--r--src/mesa/state_tracker/st_program.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index 5c81a033f9c..d91ed6806dc 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -102,6 +102,8 @@ st_prepare_vertex_program(struct st_context *st,
if (stvp->Base.IsPositionInvariant)
_mesa_insert_mvp_code(st->ctx, &stvp->Base);
+ assert(stvp->Base.Base.NumInstructions > 1);
+
/*
* Determine number of inputs, the mappings between VERT_ATTRIB_x
* and TGSI generic input indexes, plus input attrib semantic info.