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authorAlyssa Rosenzweig <[email protected]>2019-08-15 08:36:41 -0700
committerAlyssa Rosenzweig <[email protected]>2019-08-19 08:32:17 -0700
commitb8e526c520a20b13492e0ca5074d72f5b3f6388f (patch)
tree85b0b6198036d5294ffa4aabe0f43b8d4fae29b2
parentb4b2e111f882fe036a0c829e28f7bc5719143cf4 (diff)
pan/midgard: Add mir_foreach_predecessor utility
It's ugly, but c'est la vie. Signed-off-by: Alyssa Rosenzweig <[email protected]>
-rw-r--r--src/panfrost/midgard/compiler.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/panfrost/midgard/compiler.h b/src/panfrost/midgard/compiler.h
index e51ea8ba602..f196389c36a 100644
--- a/src/panfrost/midgard/compiler.h
+++ b/src/panfrost/midgard/compiler.h
@@ -360,6 +360,17 @@ mir_next_op(struct midgard_instruction *ins)
mir_foreach_block(ctx, v_block) \
mir_foreach_instr_in_block_safe(v_block, v)
+/* Based on set_foreach, expanded with automatic type casts */
+
+#define mir_foreach_predecessor(blk, v) \
+ struct set_entry *_entry_##v; \
+ struct midgard_block *v; \
+ for (_entry_##v = _mesa_set_next_entry(blk->predecessors, NULL), \
+ v = (struct midgard_block *) (_entry_##v ? _entry_##v->key : NULL); \
+ _entry_##v != NULL; \
+ _entry_##v = _mesa_set_next_entry(blk->predecessors, _entry_##v), \
+ v = (struct midgard_block *) (_entry_##v ? _entry_##v->key : NULL))
+
static inline midgard_instruction *
mir_last_in_block(struct midgard_block *block)
{