Mesa (master): nir/lower_goto_if: Document some data structures
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Fri Aug 14 20:55:37 UTC 2020
Module: Mesa
Branch: master
Commit: 202b4df4aee790bb5b9486deb7c014ed440f27ff
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=202b4df4aee790bb5b9486deb7c014ed440f27ff
Author: Jason Ekstrand <jason at jlekstrand.net>
Date: Thu Aug 13 10:06:50 2020 -0500
nir/lower_goto_if: Document some data structures
Reviewed-by: Karol Herbst <kherbst at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2401>
---
src/compiler/nir/nir_lower_goto_ifs.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/src/compiler/nir/nir_lower_goto_ifs.c b/src/compiler/nir/nir_lower_goto_ifs.c
index 956371f5a1e..e0f4b100d57 100644
--- a/src/compiler/nir/nir_lower_goto_ifs.c
+++ b/src/compiler/nir/nir_lower_goto_ifs.c
@@ -25,7 +25,15 @@
#include "nir_builder.h"
struct path {
+ /** Set of blocks which this path represents
+ *
+ * It's "reachable" not in the sense that these are all the nodes reachable
+ * through this path but in the sense that, when you see one of these
+ * blocks, you know you've reached this path.
+ */
struct set *reachable;
+
+ /** Fork in the path, if reachable->entries > 1 */
struct path_fork *fork;
};
@@ -47,11 +55,23 @@ struct routes {
struct strct_lvl {
struct exec_node node;
+
+ /** Set of blocks at the current level */
struct set *blocks;
+
+ /** Path for the next level */
struct path out_path;
+
+ /** Reach set from inside_outside if irreducable */
struct set *reach;
+
+ /** True if a skip region starts with this level */
bool skip_start;
+
+ /** True if a skip region ends with this level */
bool skip_end;
+
+ /** True if this level is irreducable */
bool irreducible;
};
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