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authoraldot <aldot@138bc75d-0d04-0410-961f-82ee72b054a4>2009-06-07 19:26:59 +0000
committeraldot <aldot@138bc75d-0d04-0410-961f-82ee72b054a4>2009-06-07 19:26:59 +0000
commitdd24d1a64025ddfeb55a62be3024c85e5bc18ec9 (patch)
tree2f4fe235c86fd3afffcbcdef79f0553e72350235 /gcc/basic-block.h
parent3f8eb683a386da9e681ab3bcd4ebb32dc8fd9cb6 (diff)
downloadgcc-dd24d1a64025ddfeb55a62be3024c85e5bc18ec9.tar.gz
2009-06-07 Bernhard Reutner-Fischer <aldot@gcc.gnu.org>
* basic-block.h (ENTRY_BLOCK, EXIT_BLOCK): Document that neither of them is supposed to hold actual statements. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@148256 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/basic-block.h')
-rw-r--r--gcc/basic-block.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index 901845a686d..72bdf5c6504 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -491,7 +491,8 @@ extern bitmap_obstack reg_obstack;
#define BB_HEAD(B) (B)->il.rtl->head_
#define BB_END(B) (B)->il.rtl->end_
-/* Special block numbers [markers] for entry and exit. */
+/* Special block numbers [markers] for entry and exit.
+ Neither of them is supposed to hold actual statements. */
#define ENTRY_BLOCK (0)
#define EXIT_BLOCK (1)