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authorZack Weinberg <zack@gcc.gnu.org>1999-03-11 16:00:03 +0000
committerZack Weinberg <zack@gcc.gnu.org>1999-03-11 16:00:03 +0000
commiteb7721afcf8b39b6276852e0e179c708f78a8d28 (patch)
tree1bb8ac47041773bd283ec40ea8ddfafeaba0d10b
parent8182dc46dcab34bf325d0cb13b0c8b3617124a0b (diff)
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*** empty log message ***
From-SVN: r25709
-rw-r--r--gcc/testsuite/gcc.dg/uninit-1.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/uninit-1.c b/gcc/testsuite/gcc.dg/uninit-1.c
new file mode 100644
index 0000000..9183881
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/uninit-1.c
@@ -0,0 +1,30 @@
+/* Spurious uninitialized variable warnings, case 1.
+ Taken from cppfiles.c (merge_include_chains) */
+/* { dg-do compile } */
+/* { dg-options "-O -Wuninitialized" } */
+
+struct list
+{
+ struct list *next;
+ int id;
+};
+
+extern void free (void *);
+
+void remove_dupes (struct list *el)
+{
+ struct list *p, *q, *r; /* { dg-bogus "r" "uninitialized variable warning" { xfail *-*-* } } */
+
+ for (p = el; p; p = p->next)
+ {
+ for (q = el; q != p; q = q->next)
+ if (q->id == p->id)
+ {
+ r->next = p->next;
+ free (p);
+ p = r;
+ break;
+ }
+ r = p;
+ }
+}