draw: Implement support for primitive id

We were largely ignoring primitive id.

Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: José Fonseca <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi.h b/src/gallium/auxiliary/gallivm/lp_bld_tgsi.h
index 5764847acb5..558a8dd7dd8 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi.h
@@ -155,6 +155,7 @@ struct lp_tgsi_info
 struct lp_bld_tgsi_system_values {
    LLVMValueRef instance_id;
    LLVMValueRef vertex_id;
+   LLVMValueRef prim_id;
 };