Hi!
This testcase has been fixed by
r11-5904-g4cf70c20cb10acd6fb1016611d05540728176b60
so I'm checking it in so that we can close the PR.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk as
obvious.
2021-02-02 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/97960
* g++.dg/torture/pr97960.C: New test.
--- gcc/testsuite/g++.dg/torture/pr97960.C.jj 2021-02-01 19:00:07.912833437
+0100
+++ gcc/testsuite/g++.dg/torture/pr97960.C 2021-02-01 18:57:04.616927413
+0100
@@ -0,0 +1,30 @@
+// PR tree-optimization/97960
+// { dg-do run }
+
+#if __CHAR_BIT__ == 8 && __SIZEOF_INT__ == 4
+const int &
+foo (const int &d, const int &f)
+{
+ if (d < f)
+ return f;
+ return d;
+}
+
+short a[575];
+unsigned b[25];
+unsigned char g;
+#endif
+
+int
+main ()
+{
+#if __CHAR_BIT__ == 8 && __SIZEOF_INT__ == 4
+ for (int e = 0; e < 23; ++e)
+ a[e * 23] = 16137;
+ for (signed char h = (unsigned char) (foo (g, 253) + 3); h < 24; h++)
+ b[h] = 1064739102;
+ for (int e = 0; e < 23; ++e)
+ if (a[e * 23] != 16137)
+ __builtin_abort ();
+#endif
+}
Jakub
