mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-28 00:28:52 +00:00
1906cf93f8
You might just say: 'Yeah! crosstool-NG's got its own repo!". Unfortunately, that's because the previous repo got damaged beyond repair and I had no backup. That means I'm putting backups in place in the afternoon. That also means we've lost history... :-(
66 lines
1.4 KiB
Diff
66 lines
1.4 KiB
Diff
--- /dev/null Sat Dec 14 13:56:51 2002
|
|
+++ gcc-3.3.1/gcc/testsuite/gcc.dg/pr10392-1.c Sun Sep 14 14:28:24 2003
|
|
@@ -0,0 +1,62 @@
|
|
+/* PR optimization/10392
|
|
+ * Reporter: marcus@mc.pp.se
|
|
+ * Summary: [3.3/3.4 regression] [SH] optimizer generates faulty array indexing
|
|
+ * Description:
|
|
+ * The address calculation of an index operation on an array on the stack
|
|
+ * can _under some conditions_ get messed up completely
|
|
+ *
|
|
+ * Testcase tweaked by dank@kegel.com
|
|
+ * Problem only happens with -O2 -m4, so it should only happen on sh4,
|
|
+ * but what the heck, let's test other architectures, too.
|
|
+ * Not marked as xfail since it's a regression.
|
|
+*/
|
|
+/* { dg-do run } */
|
|
+/* { dg-options "-O2" } */
|
|
+/* { dg-options "-O2 -m4" { target sh4-*-* } } */
|
|
+const char *dont_optimize_function_away;
|
|
+
|
|
+const char *use(const char *str)
|
|
+{
|
|
+ dont_optimize_function_away = str;
|
|
+ if (str[0] != 'v')
|
|
+ abort();
|
|
+ if (str[1] < '1' || str[1] > '6')
|
|
+ abort();
|
|
+ if (str[2])
|
|
+ abort();
|
|
+ return str[2] ? "notused" : "v6";
|
|
+}
|
|
+
|
|
+const char *func(char *a, char *b)
|
|
+{
|
|
+ char buf[128];
|
|
+ unsigned char i;
|
|
+ const char *result;
|
|
+
|
|
+ char *item[] = {
|
|
+ "v1",
|
|
+ "v2",
|
|
+ };
|
|
+
|
|
+ buf[0] = 'v';
|
|
+ buf[1] = '3';
|
|
+ buf[2] = 0;
|
|
+
|
|
+ for (i = 0; i < 2; i++) {
|
|
+ /* bug is: following line passes wild pointer to use() on sh4 -O2 */
|
|
+ result = use(item[i]);
|
|
+
|
|
+ use(buf);
|
|
+ use(a);
|
|
+ use(b);
|
|
+ result = use(result);
|
|
+ }
|
|
+ return result;
|
|
+}
|
|
+
|
|
+int main()
|
|
+{
|
|
+ func("v4", "v5");
|
|
+ return 0;
|
|
+}
|
|
+
|