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authorNathan Froyd <froydnj@codesourcery.com>2011-05-13 13:44:04 +0000
committerH.J. Lu <hjl@gcc.gnu.org>2011-05-13 06:44:04 -0700
commiteb9f925985506bf4c98f928bfdc141e2ea3e73a6 (patch)
treee093ea692109ef0e29d21b89b833062d4b892c4d /gcc/tree-cfg.c
parent3c6cbf7ad1abf48e18c7130feb6e4f60fad938f7 (diff)
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Change edge_to_cases_cleanup to return true.
2011-05-13 Nathan Froyd <froydnj@codesourcery.com> PR middle-end/48965 * tree-cfg.c (edge_to_cases_cleanup): Return true. (verify_expr) [CASE_LABEL_EXPR]: Add checking. From-SVN: r173733
Diffstat (limited to 'gcc/tree-cfg.c')
-rw-r--r--gcc/tree-cfg.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index c5fa416..9e74f58 100644
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -843,7 +843,7 @@ edge_to_cases_cleanup (const void *key ATTRIBUTE_UNUSED, void **value,
}
*value = NULL;
- return false;
+ return true;
}
/* Start recording information mapping edges to case labels. */
@@ -2830,6 +2830,14 @@ verify_expr (tree *tp, int *walk_subtrees, void *data ATTRIBUTE_UNUSED)
*walk_subtrees = 0;
break;
+ case CASE_LABEL_EXPR:
+ if (CASE_CHAIN (t))
+ {
+ error ("invalid CASE_CHAIN");
+ return t;
+ }
+ break;
+
default:
break;
}