pan/bi: Add bi_emit_before helper

For BIR lowering passes. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4276>
2020-03-19 17:21:34 -04:00
parent 6b7077efda
commit 58a51c49bb
1 changed files with 9 additions and 0 deletions
@@ -366,6 +366,15 @@ bi_emit(bi_context *ctx, bi_instruction ins)
        return u;
 }

+static inline bi_instruction *
+bi_emit_before(bi_context *ctx, bi_instruction *tag, bi_instruction ins)
+{
+        bi_instruction *u = rzalloc(ctx, bi_instruction);
+        memcpy(u, &ins, sizeof(ins));
+        list_addtail(&u->link, &tag->link);
+        return u;
+}
+
 static inline void
 bi_remove_instruction(bi_instruction *ins)
 {