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| author | Roman Lebedev <lebedev.ri@gmail.com> | 2021-12-30 13:39:39 +0300 |
|---|---|---|
| committer | Roman Lebedev <lebedev.ri@gmail.com> | 2021-12-30 13:50:02 +0300 |
| commit | a5337d6a1c6701eb98e085fb69a6e33c36f9533f (patch) | |
| tree | de648de3551414f1ac1748c337eff7dede7ce001 | |
| parent | 128c6ed73b8f906a13ae908008c6f415415964bb (diff) | |
| download | llvm-a5337d6a1c6701eb98e085fb69a6e33c36f9533f.zip llvm-a5337d6a1c6701eb98e085fb69a6e33c36f9533f.tar.gz llvm-a5337d6a1c6701eb98e085fb69a6e33c36f9533f.tar.bz2 | |
[BitcodeReader] `bitc::CST_CODE_INLINEASM`: un-hardcode offsets
| -rw-r--r-- | llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp index 1684f04..3360ad1 100644 --- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp @@ -2860,22 +2860,26 @@ Error BitcodeReader::parseConstants() { case bitc::CST_CODE_INLINEASM: { if (Record.size() < 2) return error("Invalid record"); + unsigned OpNum = 0; std::string AsmStr, ConstrStr; - bool HasSideEffects = Record[0] & 1; - bool IsAlignStack = (Record[0] >> 1) & 1; - unsigned AsmDialect = (Record[0] >> 2) & 1; - bool CanThrow = (Record[0] >> 3) & 1; - unsigned AsmStrSize = Record[1]; - if (2 + AsmStrSize >= Record.size()) + bool HasSideEffects = Record[OpNum] & 1; + bool IsAlignStack = (Record[OpNum] >> 1) & 1; + unsigned AsmDialect = (Record[OpNum] >> 2) & 1; + bool CanThrow = (Record[OpNum] >> 3) & 1; + ++OpNum; + unsigned AsmStrSize = Record[OpNum]; + ++OpNum; + if (OpNum + AsmStrSize >= Record.size()) return error("Invalid record"); - unsigned ConstStrSize = Record[2 + AsmStrSize]; - if (3 + AsmStrSize + ConstStrSize > Record.size()) + unsigned ConstStrSize = Record[OpNum + AsmStrSize]; + if (OpNum + 1 + AsmStrSize + ConstStrSize > Record.size()) return error("Invalid record"); for (unsigned i = 0; i != AsmStrSize; ++i) - AsmStr += (char)Record[2 + i]; + AsmStr += (char)Record[OpNum + i]; + ++OpNum; for (unsigned i = 0; i != ConstStrSize; ++i) - ConstrStr += (char)Record[3 + AsmStrSize + i]; + ConstrStr += (char)Record[OpNum + AsmStrSize + i]; UpgradeInlineAsmString(&AsmStr); V = InlineAsm::get( cast<FunctionType>(cast<PointerType>(CurTy)->getElementType()), |