r600: add alu + cf nop to copy shader on r600

SB suggests we do this for r600, so lets do it,
for the copy shader.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 9fe20b0..fe4a27d 100644 (file)
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1613,6 +1613,16 @@ static int generate_gs_copy_shader(struct r600_context *rctx,
                cshader->shader.ring_item_sizes[ring] = ocnt * 16;
        }
 
+       /* bc adds nops - copy it */
+       if (ctx.bc->chip_class == R600) {
+               memset(&alu, 0, sizeof(struct r600_bytecode_alu));
+               alu.op = ALU_OP0_NOP;
+               alu.last = 1;
+               r600_bytecode_add_alu(ctx.bc, &alu);
+
+               r600_bytecode_add_cfinst(ctx.bc, CF_OP_NOP);
+       }
+
        /* export vertex data */
        /* XXX factor out common code with r600_shader_from_tgsi ? */
        for (i = 0; i < ocnt; ++i) {