We now properly optimize this testcase and no longer diagnose
a bogus uninit use.
PR tree-optimization/101912
* gcc.dg/uninit-pr101912.c: New testcase.
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wuninitialized" } */
+
+int getint (void);
+int
+tzloadbody (void)
+{
+ int n = getint ();
+ int prevcorr;
+ int leapcnt = 0;
+ for (int i = 0; i < n; i++)
+ {
+ int corr = getint ();
+ if (corr < 1 || (corr == 1 && !(leapcnt == 0 || (prevcorr < corr ? corr == prevcorr + 1 : (corr == prevcorr || corr == prevcorr - 1))))) /* { dg-bogus "uninitialized" } */
+ return -1;
+
+ prevcorr = corr;
+ leapcnt++;
+ }
+ return leapcnt;
+}