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-rw-r--r--src/mesa/drivers/dri/i965/gen8_vs_state.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen8_vs_state.c b/src/mesa/drivers/dri/i965/gen8_vs_state.c
index 9bfde38c430..28f5adddf14 100644
--- a/src/mesa/drivers/dri/i965/gen8_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_vs_state.c
@@ -39,6 +39,9 @@ upload_vs_state(struct brw_context *brw)
/* BRW_NEW_VS_PROG_DATA */
const struct brw_vue_prog_data *prog_data = &brw->vs.prog_data->base;
+ assert(prog_data->dispatch_mode == DISPATCH_MODE_SIMD8 ||
+ prog_data->dispatch_mode == DISPATCH_MODE_4X2_DUAL_OBJECT);
+
if (prog_data->base.use_alt_mode)
floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT;