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, 79 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr38364.c b/gcc/testsuite/gcc.dg/pr38364.c
new file mode 100644
index 000000000..23f72de74
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr38364.c
@@ -0,0 +1,79 @@
+/* PR middle-end/38364 */
+/* { dg-do run } */
+/* { dg-options "-O2 -ftrapv" } */
+
+extern void abort (void);
+
+static inline short
+f1 (short x, short y)
+{
+  if (x > 0)
+    {
+      if (y > 0)
+	{
+	  if (x > __SHRT_MAX__ / y)
+	    return x;
+	}
+      else if (y < (-__SHRT_MAX__ - 1) / x)
+	return x;
+    }
+  else
+    {
+      if (y > 0)
+	{
+	  if (x < (-__SHRT_MAX__ - 1) / y)
+	    return x;
+	}
+      else if (x != 0 && y < __SHRT_MAX__ / x)
+	return x;
+    }
+  return x * y;
+}
+
+static inline signed char
+f2 (signed char x, signed char y)
+{
+  if (((x ^ y) & (((x ^ ((x ^ y) & (1 << (__CHAR_BIT__ - 1)))) - y) ^ y)) < 0)
+    return x;
+  return x - y;
+}
+
+unsigned int v;
+
+int
+f3 (int x, unsigned int y)
+{
+  f1 (1, 1);
+  return 1;
+}
+
+int
+f4 (unsigned short x)
+{
+  v = x;
+  return 1;
+}
+
+int
+f5 (int x)
+{
+  if (f2 (x, 1))
+    f1 (1, f4 (1));
+  return x;
+}
+
+int
+f6 (unsigned int x)
+{
+  f4 (x < (1 != f5 (0)));
+  return x;
+}
+
+int
+main (void)
+{
+  f6 (1);
+  if (v != 0)
+    abort ();
+  return 0;
+}