obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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.

1 files changed, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/opt/pr30590.C b/gcc/testsuite/g++.dg/opt/pr30590.C
new file mode 100644
index 000000000..42ae046db
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr30590.C
@@ -0,0 +1,40 @@
+/* { dg-do run } */
+/* { dg-options "-O" } */
+struct test
+{
+  int type;
+  char buffer[4242]; /* should trigger pass-by-reference */
+};
+
+int flag = 0;
+
+struct test
+reset (void)
+{
+  struct test retval;
+  retval.type = 1;
+  return retval;
+}
+
+struct test
+test (void)
+{
+  struct test result;
+  result.type = 0;
+
+  for (int i = 0; i < 2; ++i)
+    {
+      struct test candidate = reset ();
+      if (flag)
+        result = candidate;
+    }
+
+  return result;
+}
+
+int
+main (void)
+{
+  struct test result = test ();
+  return result.type;
+}