From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001
From: Ben Cheng <bccheng@google.com>
Date: Tue, 25 Mar 2014 22:37:19 -0700
Subject: Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
---
 gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp87.c | 84 +++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp87.c

(limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp87.c')

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp87.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp87.c
new file mode 100644
index 000000000..ab399b50e
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp87.c
@@ -0,0 +1,84 @@
+/* Setting LOGICAL_OP_NON_SHORT_CIRCUIT to 0 leads to two conditional jumps
+   when evaluating an && condition.  VRP is not able to optimize this.  */
+/* { dg-do compile { target { ! { logical_op_short_circuit || { m68k*-*-* mmix*-*-* mep*-*-* bfin*-*-* v850*-*-* picochip*-*-* moxie*-*-* cris*-*-* m32c*-*-* fr30*-*-* mcore*-*-* powerpc*-*-* xtensa*-*-* hppa*-*-* } } } } } */
+
+/* { dg-options "-O2 -fdump-tree-vrp2-details -fdump-tree-cddce2-details" } */
+
+struct bitmap_head_def;
+typedef struct bitmap_head_def *bitmap;
+typedef const struct bitmap_head_def *const_bitmap;
+
+
+typedef unsigned long BITMAP_WORD;
+typedef struct bitmap_element_def
+{
+  struct bitmap_element_def *next;
+  unsigned int indx;
+  BITMAP_WORD bits[((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u))];
+} bitmap_element;
+
+
+
+
+
+
+typedef struct bitmap_head_def
+{
+  bitmap_element *first;
+
+} bitmap_head;
+
+
+
+static __inline__ unsigned char
+bitmap_elt_ior (bitmap dst, bitmap_element * dst_elt,
+		bitmap_element * dst_prev, const bitmap_element * a_elt,
+		const bitmap_element * b_elt, unsigned char changed)
+{
+
+  if (a_elt)
+    {
+
+      if (!changed && dst_elt)
+	{
+	  changed = 1;
+	}
+    }
+  else
+    {
+      changed = 1;
+    }
+  return changed;
+}
+
+unsigned char
+bitmap_ior_into (bitmap a, const_bitmap b)
+{
+  bitmap_element *a_elt = a->first;
+  const bitmap_element *b_elt = b->first;
+  bitmap_element *a_prev = ((void *) 0);
+  unsigned char changed = 0;
+
+  while (b_elt)
+    {
+
+      if (!a_elt || a_elt->indx == b_elt->indx)
+	changed = bitmap_elt_ior (a, a_elt, a_prev, a_elt, b_elt, changed);
+      else if (a_elt->indx > b_elt->indx)
+	changed = 1;
+      b_elt = b_elt->next;
+
+
+    }
+
+  return changed;
+}
+
+/* Verify that VRP simplified an "if" statement.  */
+/* { dg-final { scan-tree-dump "Folded into: if.*" "vrp2"} } */
+/* Verify that DCE after VRP2 eliminates a dead conversion
+   to a (Bool).  */
+/* { dg-final { scan-tree-dump "Deleting.*_Bool.*;" "cddce2"} } */
+/* { dg-final { cleanup-tree-dump "vrp2" } } */
+/* { dg-final { cleanup-tree-dump "cddce2" } } */
+
-- 
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