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[BitcodeReader] bitc::CST_CODE_INLINEASM: un-hardcode offsets

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This commit is contained in:
Roman Lebedev
2021-12-30 13:39:39 +03:00
parent 128c6ed73b
commit a5337d6a1c
1 changed files with 14 additions and 10 deletions
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24
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -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()),