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Add assertions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19596 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-16 02:23:22 +00:00
parent c8ea3c4710
commit 7636512f59
1 changed files with 31 additions and 0 deletions
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31
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -543,6 +543,37 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
SDOperand N1, SDOperand N2) {
#ifndef NDEBUG
switch (Opcode) {
case ISD::AND:
case ISD::OR:
case ISD::XOR:
case ISD::UDIV:
case ISD::UREM:
assert(MVT::isInteger(VT) && "This operator does not apply to FP types!");
// fall through
case ISD::ADD:
case ISD::SUB:
case ISD::MUL:
case ISD::SDIV:
case ISD::SREM:
assert(N1.getValueType() == N2.getValueType() &&
N1.getValueType() == VT && "Binary operator types must match!");
break;
case ISD::SHL:
case ISD::SRA:
case ISD::SRL:
assert(VT == N1.getValueType() &&
"Shift operators return type must be the same as their first arg");
assert(MVT::isInteger(VT) && MVT::isInteger(N2.getValueType()) &&
"Shifts only work on integers");
assert(VT >= MVT::i8 && "Shift amount cannot be a MVT::i1");
break;
default: break;
}
#endif
ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.Val);
if (N1C) {