Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 39 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp88.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp88.c
new file mode 100644
index 000000000..e43bdffbb
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp88.c
@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+
+/* { dg-options "-O2 -fdump-tree-vrp1-details" } */
+
+
+typedef const struct bitmap_head_def *const_bitmap;
+typedef unsigned long BITMAP_WORD;
+typedef struct bitmap_element_def {
+  struct bitmap_element_def *next;
+  BITMAP_WORD bits[((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u))];
+} bitmap_element;
+typedef struct bitmap_head_def {
+  bitmap_element *first;
+} bitmap_head;
+unsigned char
+bitmap_single_bit_set_p (const_bitmap a)
+{
+  unsigned long count = 0;
+  const bitmap_element *elt;
+  unsigned ix;
+  if ((!(a)->first))
+    return 0;
+  elt = a->first;
+  if (elt->next != ((void *)0))
+    return 0;
+  for (ix = 0; ix != ((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u)); ix++)
+    {
+      count += __builtin_popcountl (elt->bits[ix]);
+      if (count > 1)
+ return 0;
+    }
+  return count == 1;
+}
+
+/* Verify that VRP simplified an "if" statement.  */
+/* { dg-final { scan-tree-dump "Folded into: if.*" "vrp1"} } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */
+
+