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X86FoldTablesEmitter - fix static analyzer potential invalid iterator warning. NFCI.

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This commit is contained in:
Simon Pilgrim 2019-11-06 13:31:00 +00:00
parent 37cdac6344
commit cfc385d954
1 changed files with 3 additions and 3 deletions
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6
llvm/utils/TableGen/X86FoldTablesEmitter.cpp
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@ -618,14 +618,14 @@ void X86FoldTablesEmitter::run(formatted_raw_ostream &OS) {
uint8_t Opc =
getValueFromBitsInit(MemInst->TheDef->getValueAsBitsInit("Opcode"));
if (RegInsts.count(Opc) == 0)
auto RegInstsIt = RegInsts.find(Opc);
if (RegInstsIt == RegInsts.end())
continue;
// Two forms (memory & register) of the same instruction must have the same
// opcode. try matching only with register form instructions with the same
// opcode.
std::vector<const CodeGenInstruction *> &OpcRegInsts =
RegInsts.find(Opc)->second;
std::vector<const CodeGenInstruction *> &OpcRegInsts = RegInstsIt->second;
auto Match = find_if(OpcRegInsts, IsMatch(MemInst, Records));
if (Match != OpcRegInsts.end()) {