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authorDiego Novillo <dnovillo@google.com>2009-01-09 16:11:25 -0500
committerDiego Novillo <dnovillo@gcc.gnu.org>2009-01-09 16:11:25 -0500
commite0e10d3a2842b224fd9a69aa7a1b60f4343e24f9 (patch)
treef925f21e1aa995dd66b9aa4bb1bcb0677dc17518 /gcc/gimple.h
parentc9da2ae8abcb55f016788007ed70f73c39775397 (diff)
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gimple.h (struct gimple_statement_base): Document the restrictions on its use.
* gimple.h (struct gimple_statement_base)<uid>: Document the restrictions on its use. (gimple_uid): Tidy. (gimple_set_uid): Tidy. From-SVN: r143233
Diffstat (limited to 'gcc/gimple.h')
-rw-r--r--gcc/gimple.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/gimple.h b/gcc/gimple.h
index 8f8e49b..7760e24 100644
--- a/gcc/gimple.h
+++ b/gcc/gimple.h
@@ -297,7 +297,9 @@ struct gimple_statement_base GTY(())
in there. */
unsigned int subcode : 16;
- /* UID of this statement. */
+ /* UID of this statement. This is used by passes that want to
+ assign IDs to statements. It must be assigned and used by each
+ pass. By default it should be assumed to contain garbage. */
unsigned uid;
/* [ WORD 2 ]
@@ -1204,7 +1206,7 @@ gimple_plf (gimple stmt, enum plf_mask plf)
}
-/* Set the uid of statement */
+/* Set the UID of statement. */
static inline void
gimple_set_uid (gimple g, unsigned uid)
@@ -1213,7 +1215,7 @@ gimple_set_uid (gimple g, unsigned uid)
}
-/* Return the uid of statement */
+/* Return the UID of statement. */
static inline unsigned
gimple_uid (const_gimple g)