diff gcc/testsuite/gnat.dg/opt83.adb @ 19:2b5abeee2509 default tip

update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gnat.dg/opt83.adb	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,33 @@
+--  { dg-do compile }
+--  { dg-options "-O2" }
+
+--  rpo fre3 used to loop indefinitely replacing _2 with _8 and back,
+--  given MEM[(struct test__e &)_2][0]{lb: _7 sz: 16}._tag = A23s_29;
+--  and an earlier _8 = &*_2[0]{lb: _7 sz: 16}.
+
+procedure Opt83 is
+
+   type E is tagged record
+      I : Natural := 0;
+   end record;
+
+   type A is array (Natural range <>) of aliased E;
+
+   F : E;
+
+   R : access A;
+
+   procedure N is
+   begin
+      if R = null then
+        R := new A (0 .. 4);
+      end if;
+   end N;
+
+begin
+
+   N;
+
+   R (0) := F;
+
+end Opt83;