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/reg-stack2.C | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/opt/reg-stack2.C

(limited to 'gcc/testsuite/g++.dg/opt/reg-stack2.C')

diff --git a/gcc/testsuite/g++.dg/opt/reg-stack2.C b/gcc/testsuite/g++.dg/opt/reg-stack2.C
new file mode 100644
index 000000000..08cd590b4
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/reg-stack2.C
@@ -0,0 +1,34 @@
+// PR target/9786
+// Origin: <nick@ilm.com>
+
+// This used to fail on x86 because the reg-stack pass deleted
+// an insn that could seemingly trap (but actually doesn't)
+// without updating the CFG.
+
+// { dg-do compile }
+// { dg-options "-O2 -fnon-call-exceptions" }
+
+struct D1 {
+    float l;
+    D1 GS() const {D1 d;float f=.299*l;d.l=f;return d;}
+    static D1 G() {return D1();}
+};
+
+struct D2 {
+    D1 g;
+    D2(const D1& gi) : g(gi) {}
+    D2 GS() const {return D2(g.GS());}
+};
+
+class A {
+  public:
+    virtual ~A() {}
+};
+
+class B : public A {
+  public:
+    B(const D2& mi);
+    D2 fm;
+};
+
+B::B(const D2 &mi) : fm(mi.GS()) {}
-- 
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