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SelectionDAG: Assert if we truncate SDNode's NumOperands or NumValues 

No functionality change intended, this just stops us early if we created
a bad SDNode.

llvm-svn: 221560
This commit is contained in:
David Majnemer 2014-11-07 22:39:11 +00:00
parent 5a1558ec31
commit c15788a23a
1 changed files with 10 additions and 1 deletions
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11
llvm/include/llvm/CodeGen/SelectionDAGNodes.h
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@ -762,6 +762,10 @@ protected:
ValueList(VTs.VTs), UseList(nullptr),
NumOperands(Ops.size()), NumValues(VTs.NumVTs),
debugLoc(dl), IROrder(Order) {
assert(NumOperands == Ops.size() &&
"NumOperands wasn't wide enough for its operands!");
assert(NumValues == VTs.NumVTs &&
"NumValues wasn't wide enough for its operands!");
for (unsigned i = 0; i != Ops.size(); ++i) {
OperandList[i].setUser(this);
OperandList[i].setInitial(Ops[i]);
@ -775,7 +779,10 @@ protected:
: NodeType(Opc), OperandsNeedDelete(false), HasDebugValue(false),
SubclassData(0), NodeId(-1), OperandList(nullptr), ValueList(VTs.VTs),
UseList(nullptr), NumOperands(0), NumValues(VTs.NumVTs), debugLoc(dl),
IROrder(Order) {}
IROrder(Order) {
assert(NumValues == VTs.NumVTs &&
"NumValues wasn't wide enough for its operands!");
}
/// InitOperands - Initialize the operands list of this with 1 operand.
void InitOperands(SDUse *Ops, const SDValue &Op0) {
@ -834,6 +841,8 @@ protected:
Ops[i].setInitial(Vals[i]);
}
NumOperands = N;
assert(NumOperands == N &&
"NumOperands wasn't wide enough for its operands!");
OperandList = Ops;
checkForCycles(this);
}