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SIL Serialization: able to serialize then deserialize a simple SIL function.

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Add implementation to deserialize SILBasicBlock and some SILInstructins.
Add handling of local SIL values.
Add serialization of SILType category and SILValue result number.


Swift SVN r8292
This commit is contained in:
Manman Ren
2013-09-16 20:44:57 +00:00
parent 64ae92c4b4
commit 8d3c48874c
4 changed files with 244 additions and 28 deletions
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40
lib/Serialization/SerializeSIL.cpp
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@@ -20,6 +20,7 @@
#include "clang/Basic/OnDiskHashTable.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Debug.h"
using namespace swift;
using namespace swift::serialization;
@@ -114,7 +115,7 @@ SILSerializer::SILSerializer(Serializer &S, ASTContext &Ctx,
S(S), Ctx(Ctx), Out(Out), FuncID(1) {
}
/// We enumerate all valus to update ValueIDs in a separate pass
/// We enumerate all values to update ValueIDs in a separate pass
/// to correctly handle forward reference of a value.
ValueID SILSerializer::addValueRef(const ValueBase *Val) {
if (!Val)
@@ -129,6 +130,9 @@ ValueID SILSerializer::addValueRef(const ValueBase *Val) {
}
void SILSerializer::writeSILFunction(const SILFunction &F) {
DEBUG(llvm::dbgs() << "Serialize SIL:\n";
F.dump());
LastValueID = 0;
FuncTable[Ctx.getIdentifier(F.getName())] = FuncID++;
Funcs.push_back(Out.GetCurrentBitNo());
InstID = 0;
@@ -165,31 +169,47 @@ void SILSerializer::writeSILInstruction(const SILInstruction &SI) {
(unsigned)SI.getKind());
break;
}
// The following SIL instructions has a single type.
case ValueKind::AllocBoxInst: {
const AllocBoxInst *ABI = cast<AllocBoxInst>(&SI);
unsigned abbrCode = SILAbbrCodes[SILOneTypeLayout::Code];
SILOneTypeLayout::emitRecord(Out, ScratchRecord, abbrCode,
(unsigned)SI.getKind(),
S.addTypeRef(ABI->getElementType().getSwiftRValueType()),
(unsigned)ABI->getElementType().getCategory());
break;
}
case ValueKind::AllocStackInst: {
const AllocStackInst *ASI = cast<AllocStackInst>(&SI);
unsigned abbrCode = SILAbbrCodes[SILOneTypeLayout::Code];
SILOneTypeLayout::emitRecord(Out, ScratchRecord, abbrCode,
(unsigned)SI.getKind(),
S.addTypeRef(ASI->getElementType().getSwiftType()));
(unsigned)SI.getKind(),
S.addTypeRef(ASI->getElementType().getSwiftRValueType()),
(unsigned)ASI->getElementType().getCategory());
break;
}
// One operand
// The following SIL instructions has a single operand.
case ValueKind::DeallocStackInst:
case ValueKind::ReturnInst: {
unsigned abbrCode = SILAbbrCodes[SILOneOperandLayout::Code];
SILOneOperandLayout::emitRecord(Out, ScratchRecord, abbrCode,
(unsigned)SI.getKind(),
S.addTypeRef(SI.getOperand(0).getType().getSwiftType()),
addValueRef(SI.getOperand(0)));
(unsigned)SI.getKind(),
S.addTypeRef(SI.getOperand(0).getType().getSwiftRValueType()),
(unsigned)SI.getOperand(0).getType().getCategory(),
addValueRef(SI.getOperand(0)),
SI.getOperand(0).getResultNumber());
break;
}
case ValueKind::StoreInst: {
const StoreInst *StI = cast<StoreInst>(&SI);
unsigned abbrCode = SILAbbrCodes[SILOneValueOneOperandLayout::Code];
SILOneValueOneOperandLayout::emitRecord(Out, ScratchRecord, abbrCode,
(unsigned)SI.getKind(), addValueRef(StI->getSrc()),
S.addTypeRef(StI->getDest().getType().getSwiftType()),
addValueRef(StI->getDest()));
(unsigned)SI.getKind(), addValueRef(StI->getSrc()),
StI->getSrc().getResultNumber(),
S.addTypeRef(StI->getDest().getType().getSwiftRValueType()),
(unsigned)StI->getDest().getType().getCategory(),
addValueRef(StI->getDest()),
StI->getDest().getResultNumber());
break;
}
}