+/* PR rtl-optimization/21330 */
+
+extern void abort (void);
+extern int strcmp (const char *, const char *);
+
+int
+__attribute__((noinline))
+bar (const char **x)
+{
+ return *(*x)++;
+}
+
+int
+__attribute__((noinline))
+baz (int c)
+{
+ return c != '@';
+}
+
+void
+__attribute__((noinline))
+foo (const char **w, char *x, _Bool y, _Bool z)
+{
+ char c = bar (w);
+ int i = 0;
+
+ while (1)
+ {
+ x[i++] = c;
+ c = bar (w);
+ if (y && c == '\'')
+ break;
+ if (z && c == '\"')
+ break;
+ if (!y && !z && !baz (c))
+ break;
+ }
+ x[i] = 0;
+}
+
+int
+main (void)
+{
+ char buf[64];
+ const char *p;
+ p = "abcde'fgh";
+ foo (&p, buf, 1, 0);
+ if (strcmp (p, "fgh") != 0 || strcmp (buf, "abcde") != 0)
+ abort ();
+ p = "ABCDEFG\"HI";
+ foo (&p, buf, 0, 1);
+ if (strcmp (p, "HI") != 0 || strcmp (buf, "ABCDEFG") != 0)
+ abort ();
+ p = "abcd\"e'fgh";
+ foo (&p, buf, 1, 1);
+ if (strcmp (p, "e'fgh") != 0 || strcmp (buf, "abcd") != 0)
+ abort ();
+ p = "ABCDEF'G\"HI";
+ foo (&p, buf, 1, 1);
+ if (strcmp (p, "G\"HI") != 0 || strcmp (buf, "ABCDEF") != 0)
+ abort ();
+ p = "abcdef@gh";
+ foo (&p, buf, 0, 0);
+ if (strcmp (p, "gh") != 0 || strcmp (buf, "abcdef") != 0)
+ abort ();
+ return 0;
+}