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[MIPS] Mips16DAGToDAGISel::selectAddr - Use cast<> instead of dyn_cast<> to avoid dereference of nullptr 

The pointer is always dereferenced immediately below, so assert the cast is correct instead of returning nullptr
This commit is contained in:
Simon Pilgrim 2022-01-12 16:18:18 +00:00
parent 2bc57d85eb
commit 37ebec68a8
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Target/Mips/Mips16ISelDAGToDAG.cpp
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@ -121,7 +121,7 @@ bool Mips16DAGToDAGISel::selectAddr(bool SPAllowed, SDValue Addr, SDValue &Base,
}
// Addresses of the form FI+const or FI|const
if (CurDAG->isBaseWithConstantOffset(Addr)) {
ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1));
auto *CN = cast<ConstantSDNode>(Addr.getOperand(1));
if (isInt<16>(CN->getSExtValue())) {
// If the first operand is a FI, get the TargetFI Node
if (SPAllowed) {