Hi,
While I was working on using zero_extract more on the left hand side
in combine, I found a bug in my code but there was no testcase in the
testsuite that tested it. The code originally comes from uboot which
was failing when doing a ping or tftp.
Committed the testcase as obvious after a quick test to make sure it
works. Note someone might need to mark the testcase as only
executable on targets which have 32bit ints.
Thanks,
Andrew Pinski
ChangeLog:
* gcc.c-torture/execute/20121108-1.c: New testcase.
Index: gcc.c-torture/execute/20121108-1.c
===================================================================
--- gcc.c-torture/execute/20121108-1.c (revision 0)
+++ gcc.c-torture/execute/20121108-1.c (revision 0)
@@ -0,0 +1,51 @@
+char temp[] = "192.168.190.160";
+unsigned result = (((((192u<<8)|168u)<<8)|190u)<<8)|160u;
+
+int strtoul1(const char *a, char **b, int c) __attribute__((noinline,
noclone));
+int strtoul1(const char *a, char **b, int c)
+{
+ *b = a+3;
+ if (a == temp)
+ return 192;
+ else if (a == temp+4)
+ return 168;
+ else if (a == temp+8)
+ return 190;
+ else if (a == temp+12)
+ return 160;
+ __builtin_abort();
+}
+
+int string_to_ip(const char *s) __attribute__((noinline,noclone));
+int string_to_ip(const char *s)
+{
+ int addr;
+ char *e;
+ int i;
+
+ if (s == 0)
+ return(0);
+
+ for (addr=0, i=0; i<4; ++i) {
+ int val = s ? strtoul1(s, &e, 10) : 0;
+ addr <<= 8;
+ addr |= (val & 0xFF);
+ if (s) {
+ s = (*e) ? e+1 : e;
+ }
+ }
+
+ return addr;
+}
+
+int main(void)
+{
+ int t = string_to_ip (temp);
+ printf ("%x\n", t);
+ printf ("%x\n", result);
+ if (t != result)
+ __builtin_abort ();
+ printf ("WORKS.\n");
+ return 0;
+}
+
