From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 16 Aug 2005 08:38:15 +0000 (+0200)
Subject: re PR rtl-optimization/23299 ("classic" GCSE caused miscompilation)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7c83bbb10900a9265c7339ab6dfed58143e40134;p=gcc.git

re PR rtl-optimization/23299 ("classic" GCSE caused miscompilation)

	PR rtl-optimization/23299
	* g++.dg/opt/pr23299.C: New test.

From-SVN: r103148
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3b05f172ff0..7d05ac7d2dc 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-08-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/23299
+	* g++.dg/opt/pr23299.C: New test.
+
 2005-08-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
 	* gcc.dg/special/weak-1.c: xfail 32-bit hppa*-*-hpux*.
diff --git a/gcc/testsuite/g++.dg/opt/pr23299.C b/gcc/testsuite/g++.dg/opt/pr23299.C
new file mode 100644
index 00000000000..94a414aa5f7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr23299.C
@@ -0,0 +1,63 @@
+// PR rtl-optimization/23299
+// { dg-do run }
+// { dg-options "-Os" }
+
+extern "C" void abort ();
+
+struct A
+{
+  virtual int a () {}
+};
+struct B : public A
+{
+  virtual int b () {}
+};
+struct C : public A
+{
+  virtual int c () {}
+};
+struct D
+{
+  D () { d = 64; }
+  ~D ();
+  int d;
+};
+
+int x;
+D::~D ()
+{
+  x |= 1;
+  if (d != 64)
+    abort ();
+}
+
+struct E : public B, public C
+{
+  E () {}
+  virtual int c ();
+  ~E ();
+  D dv;
+};
+
+E::~E ()
+{
+  int r = c ();
+}
+
+int
+E::c ()
+{
+  if (x > 10)
+    throw 1;
+  x |= 2;
+}
+
+int
+main (void)
+{
+  {
+    E e;
+  }
+  if (x != 3)
+    abort ();
+}