commit 28328f9a0ad083bc243afbb38ebe39ddec0105d8
author Chris Lattner <sabre@nondot.org> Sat Oct 28 18:11:20 2006 +0000
committer Chris Lattner <sabre@nondot.org> Sat Oct 28 18:11:20 2006 +0000
tree 25dc44abb5e9bda21f5b1946a3ab1a429faf1c93
parent 28bfe389d1b0d6176380ff52e1d5a3cddef1fb74

add an assert

llvm-svn: 31267

llvm/lib/CodeGen/MachineFunction.cpp

diff --git a/llvm/lib/CodeGen/MachineFunction.cpp b/llvm/lib/CodeGen/MachineFunction.cpp
index 205414e..7617de9 100644
--- a/llvm/lib/CodeGen/MachineFunction.cpp
+++ b/llvm/lib/CodeGen/MachineFunction.cpp
@@ -363,6 +363,7 @@
 ///
 unsigned MachineJumpTableInfo::getJumpTableIndex(
                                      std::vector<MachineBasicBlock*> &DestBBs) {
+  assert(!DestBBs.empty() && "Cannot create an empty jump table!");
   for (unsigned i = 0, e = JumpTables.size(); i != e; ++i)
     if (JumpTables[i].MBBs == DestBBs)
       return i;