2022-05-16 Richard Biener <rguenther@suse.de>
gcc/testsuite/
* gcc.dg/torture/pr105598.c: New testcase.
--- /dev/null
+/* { dg-do run } */
+
+typedef struct { unsigned int num; } info_t;
+typedef struct { unsigned int flag, type; } block_t;
+info_t info;
+block_t blocks[] = { {2,0}, {3,0}, {1,0}, {1,0} };
+
+static block_t *
+f (info_t *i, block_t *b)
+{
+ while (1) {
+ unsigned int is_last = b->flag & 0x01;
+ i->num++;
+ if (b->flag & 0x02) {
+ if (b->type != 0x1) b->type = b->type;
+ b = f (i, b+1);
+ }
+ if (is_last)
+ break;
+ b++;
+ }
+ return b;
+}
+
+int
+main ()
+{
+ f(&info, &blocks[0]);
+ if (info.num != 4)
+ __builtin_abort ();
+ return 0;
+}