From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/g++.dg/opt/cse2.C | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/opt/cse2.C

(limited to 'gcc/testsuite/g++.dg/opt/cse2.C')

diff --git a/gcc/testsuite/g++.dg/opt/cse2.C b/gcc/testsuite/g++.dg/opt/cse2.C
new file mode 100644
index 000000000..325169dff
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/cse2.C
@@ -0,0 +1,39 @@
+// This testcase caused ICE on IA-32 in simplify_unary_operation
+// CSE did not assume SUBREGs changing mode from integral to floating.
+// { dg-do run { target i?86-*-* sparc*-*-* x86_64-*-* } }
+// { dg-options "-O2" }
+
+struct A
+{
+  union
+    {
+      float f;
+      unsigned int w;
+    } a;
+
+  static inline const A foo (void)
+    {
+      return A ((unsigned int) (__extension__ ((union { unsigned l; float d; })
+					       { l: 0x3f800000 }).d));
+    }
+  inline A (float f) { a.f = f; }
+  A ();
+  inline A (unsigned int w) { a.w = w; }
+};
+
+A::A()
+{
+  *this = foo ();
+}
+
+A a;
+
+extern "C" void abort (void);
+extern "C" void exit (int);
+
+int main ()
+{
+  if (a.a.w != 1)
+    abort ();
+  exit (0);
+}
-- 
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