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implement reading/writing of inlineasm objects 

llvm-svn: 36827
This commit is contained in:
Chris Lattner 2007-05-06 01:58:20 +00:00
parent 19f599471c
commit af8fffc081
2 changed files with 37 additions and 6 deletions
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21
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -15,6 +15,7 @@
#include "BitcodeReader.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/ParameterAttributes.h"
@ -759,6 +760,26 @@ bool BitcodeReader::ParseConstants() {
V = ConstantExpr::getICmp(Record[3], Op0, Op1);
break;
}
case bitc::CST_CODE_INLINEASM: {
if (Record.size() < 2) return Error("Invalid INLINEASM record");
std::string AsmStr, ConstrStr;
bool HasSideEffects = Record[0];
unsigned AsmStrSize = Record[1];
if (2+AsmStrSize >= Record.size())
return Error("Invalid INLINEASM record");
unsigned ConstStrSize = Record[2+AsmStrSize];
if (3+AsmStrSize+ConstStrSize > Record.size())
return Error("Invalid INLINEASM record");
for (unsigned i = 0; i != AsmStrSize; ++i)
AsmStr += (char)Record[2+i];
for (unsigned i = 0; i != ConstStrSize; ++i)
ConstrStr += (char)Record[3+AsmStrSize+i];
const PointerType *PTy = cast<PointerType>(CurTy);
V = InlineAsm::get(cast<FunctionType>(PTy->getElementType()),
AsmStr, ConstrStr, HasSideEffects);
break;
}
}
ValueList.AssignValue(V, NextCstNo);

22
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -17,6 +17,7 @@
#include "ValueEnumerator.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/ParameterAttributes.h"
@ -446,9 +447,6 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal,
CString6Abbrev = Stream.EmitAbbrev(Abbv);
}
// FIXME: Install and use abbrevs to reduce size. Install them globally so
// they don't need to be reemitted for each function body.
SmallVector<uint64_t, 64> Record;
const ValueEnumerator::ValueList &Vals = VE.getValues();
@ -465,7 +463,21 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal,
}
if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
assert(0 && IA && "FIXME: Inline asm writing unimp!");
Record.push_back(unsigned(IA->hasSideEffects()));
// Add the asm string.
const std::string &AsmStr = IA->getAsmString();
Record.push_back(AsmStr.size());
for (unsigned i = 0, e = AsmStr.size(); i != e; ++i)
Record.push_back(AsmStr[i]);
// Add the constraint string.
const std::string &ConstraintStr = IA->getConstraintString();
Record.push_back(ConstraintStr.size());
for (unsigned i = 0, e = ConstraintStr.size(); i != e; ++i)
Record.push_back(ConstraintStr[i]);
Stream.EmitRecord(bitc::CST_CODE_INLINEASM, Record);
Record.clear();
continue;
}
const Constant *C = cast<Constant>(V);
@ -894,8 +906,6 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
Stream.EmitRecord(bitc::FUNC_CODE_DECLAREBLOCKS, Vals);
Vals.clear();
// FIXME: Function attributes?
// If there are function-local constants, emit them now.
unsigned CstStart, CstEnd;
VE.getFunctionConstantRange(CstStart, CstEnd);