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, 31 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/torture/pr44492.C b/gcc/testsuite/g++.dg/torture/pr44492.C
new file mode 100644
index 000000000..41669241e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr44492.C
@@ -0,0 +1,31 @@
+// PR middle-end/44492
+// { dg-do run }
+
+struct T { unsigned long p; };
+struct S { T a, b, c; unsigned d; };
+
+__attribute__((noinline))
+void
+bar (const T &x, const T &y)
+{
+  if (x.p != 0x2348 || y.p != 0x2346)
+    __builtin_abort ();
+}
+
+__attribute__((noinline))
+void
+foo (S &s, T e)
+{
+  unsigned long a = e.p;
+  unsigned long b = s.b.p;
+  __asm__ volatile ("" : : "rm" (a), "rm" (b));
+  bar (e, s.b);
+}
+
+int
+main ()
+{
+  S s = { { 0x2345 }, { 0x2346 }, { 0x2347 }, 6 };
+  T t = { 0x2348 };
+  foo (s, t);
+}