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, 97 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr45830.c b/gcc/testsuite/gcc.c-torture/execute/pr45830.c
new file mode 100644
index 000000000..0f83e050e
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr45830.c
@@ -0,0 +1,97 @@
+/* PR tree-optimization/45830 */
+
+extern void abort (void);
+
+long long va, vb, vc, vd, ve;
+
+__attribute__((noinline)) int
+foo (int x)
+{
+  long long a, b, c, d, e;
+  switch (x)
+    {
+    case 0:
+    case 3:
+    case 1:
+    case 2:
+    case 4:
+      a = 1;
+      b = 129;
+      c = -12;
+      d = -4;
+      e = 128;
+      break;
+    case 23:
+    case 26:
+    case 19:
+    case 65:
+    case 5:
+      a = 2;
+      b = 138;
+      c = 115;
+      d = 128;
+      e = -16;
+      break;
+    case 21:
+    case 20:
+    case 22:
+    case 38:
+    case 27:
+    case 66:
+    case 45:
+    case 47:
+      a = 3;
+      b = 6;
+      c = 127;
+      d = 25;
+      e = 257;
+      break;
+    default:
+      a = 0;
+      b = 18;
+      c = 0;
+      d = 64;
+      e = 32768L;
+      break;
+    }
+  va = a;
+  vb = b;
+  vc = c;
+  vd = d;
+  ve = e;
+}
+
+int
+bar (int x)
+{
+  if (x < 0)
+    return 3;
+  if (x < 5)
+    return 0;
+  if (x == 5 || x == 19 || x == 23 | x == 26 || x == 65)
+    return 1;
+  if ((x >= 20 && x <= 22) || x == 27 || x == 38
+      || x == 45 || x == 47 || x == 66)
+    return 2;
+  return 3;
+}
+
+long long expected[] =
+{ 1, 129, -12, -4, 128, 2, 138, 115, 128, -16,
+  3, 6, 127, 25, 257, 0, 18, 0, 64, 32768L };
+
+int
+main (void)
+{
+  int i, v;
+  for (i = -4; i < 70; i++)
+    {
+      foo (i);
+      v = bar (i);
+      if (va != expected[5 * v] || vb != expected[5 * v + 1]
+	  || vc != expected[5 * v + 2] || vd != expected[5 * v + 3]
+	  || ve != expected[5 * v + 4])
+	abort ();
+    }
+  return 0;
+}