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add an assert

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31267 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-10-28 18:11:20 +00:00
parent 0737188220
commit e7251a0377
1 changed files with 1 additions and 0 deletions
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lib/CodeGen/MachineFunction.cpp
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@@ -363,6 +363,7 @@ void MachineFrameInfo::dump(const MachineFunction &MF) const {
/// ///
unsigned MachineJumpTableInfo::getJumpTableIndex( unsigned MachineJumpTableInfo::getJumpTableIndex(
std::vector<MachineBasicBlock*> &DestBBs) { std::vector<MachineBasicBlock*> &DestBBs) {
assert(!DestBBs.empty() && "Cannot create an empty jump table!");
for (unsigned i = 0, e = JumpTables.size(); i != e; ++i) for (unsigned i = 0, e = JumpTables.size(); i != e; ++i)
if (JumpTables[i].MBBs == DestBBs) if (JumpTables[i].MBBs == DestBBs)
return i; return i;