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[SDAG] Don't insert the VRBase into a mapping from SDValues when the def

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doesn't actually correspond to an SDValue at all. Fixes most of the
remaining asserts on out-of-range SDValue result numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213930 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2014-07-25 09:19:18 +00:00
parent 068898df79
commit 38ccfe9761
1 changed files with 10 additions and 6 deletions
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16
lib/CodeGen/SelectionDAG/InstrEmitter.cpp
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@ -265,12 +265,16 @@ void InstrEmitter::CreateVirtualRegisters(SDNode *Node,
MIB.addReg(VRBase, RegState::Define);
}
SDValue Op(Node, i);
if (IsClone)
VRBaseMap.erase(Op);
bool isNew = VRBaseMap.insert(std::make_pair(Op, VRBase)).second;
(void)isNew; // Silence compiler warning.
assert(isNew && "Node emitted out of order - early");
// If this def corresponds to a result of the SDNode insert the VRBase into
// the lookup map.
if (i < NumResults) {
SDValue Op(Node, i);
if (IsClone)
VRBaseMap.erase(Op);
bool isNew = VRBaseMap.insert(std::make_pair(Op, VRBase)).second;
(void)isNew; // Silence compiler warning.
assert(isNew && "Node emitted out of order - early");
}
}
}