[igt-dev] [PATCH i-g-t v30 11/33] lib/rendercopy: remove libdrm dependency

[Chris Wilson]

Quoting Zbigniew Kempczyński (2020-08-19 13:32:44)
> -static inline void emit_vertex_2s(struct intel_batchbuffer *batch,
> +static inline void emit_vertex_2s(struct intel_bb *ibb,
>                                   int16_t x, int16_t y)
>  {
> -       OUT_BATCH((uint16_t)y << 16 | (uint16_t)x);
> +       intel_bb_out(ibb, ((uint16_t)y << 16 | (uint16_t)x));

Whoops, this is technically undefined behaviour. We need to cast to
(uint32_t)y << 16 to avoid 'int' promotion.
-Chris