Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 58 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr59597.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr59597.c
new file mode 100644
index 000000000..bc9d73049
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr59597.c
@@ -0,0 +1,58 @@
+/* { dg-do compile } */
+/* { dg-options "-Ofast -fdump-tree-vrp1-details" } */
+
+typedef unsigned short u16;
+typedef unsigned char u8;
+typedef unsigned int u32;
+#define NNN 10
+
+u32 f[NNN], t[NNN];
+
+static u16
+Calc_crc8 (u8 data, u16 crc)
+{
+  u8 i=0,x16=0,carry=0;
+  for (i = 0; i < 8; i++)
+    {
+      x16 = (u8)((data & 1) ^ ((u8)crc & 1));
+      data >>= 1;
+ 
+      if (x16 == 1)
+	{
+	  crc ^= 0x4002;
+	  carry = 1;
+	}
+      else
+	carry = 0;
+      crc >>= 1;
+      if (carry)
+	crc |= 0x8000;
+      else
+	crc &= 0x7fff;
+    }
+  return crc;
+}
+
+int
+main (int argc, char argv[])
+{
+  int i, j; u16 crc;
+  for (j = 0; j < 10000000; j++)
+    {
+      for (i = 0; i < NNN; i++)
+	{
+	  f[i] = random(i);
+	  t[i] = random(NNN - i - 1);
+	}
+      for (i=0; i<NNN; i++) 
+	{
+	  crc=Calc_crc8(f[i],(u16)argc);
+	  crc=Calc_crc8(t[i],crc);
+	}
+    }
+  return crc;
+}
+
+/* { dg-final { scan-tree-dump "Cancelling" "vrp1" } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */
+