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Swift SIL: replace the set_deallocating instruction with begin_dealloc_ref

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Codegen is the same, but `begin_dealloc_ref` consumes the operand and produces a new SSA value.
This cleanly splits the liferange to the region before and within the destructor of a class.
This commit is contained in:
Erik Eckstein
2023-09-06 18:39:18 +02:00
parent d457368014
commit e5eb15dcbe
52 changed files with 453 additions and 278 deletions
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6
lib/Serialization/SerializeSIL.cpp
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@@ -1480,7 +1480,6 @@ void SILSerializer::writeSILInstruction(const SILInstruction &SI) {
case SILInstructionKind::UnmanagedReleaseValueInst:
case SILInstructionKind::AutoreleaseValueInst:
case SILInstructionKind::UnmanagedAutoreleaseValueInst:
case SILInstructionKind::SetDeallocatingInst:
case SILInstructionKind::DeallocStackInst:
case SILInstructionKind::DeallocStackRefInst:
case SILInstructionKind::DeallocPackInst:
@@ -1622,6 +1621,7 @@ void SILSerializer::writeSILInstruction(const SILInstruction &SI) {
}
case SILInstructionKind::CopyBlockWithoutEscapingInst:
case SILInstructionKind::DeallocPartialRefInst:
case SILInstructionKind::BeginDeallocRefInst:
case SILInstructionKind::MarkDependenceInst:
case SILInstructionKind::IndexAddrInst:
case SILInstructionKind::IndexRawPointerInst: {
@@ -1635,6 +1635,10 @@ void SILSerializer::writeSILInstruction(const SILInstruction &SI) {
const DeallocPartialRefInst *DPRI = cast<DeallocPartialRefInst>(&SI);
operand = DPRI->getInstance();
operand2 = DPRI->getMetatype();
} else if (SI.getKind() == SILInstructionKind::BeginDeallocRefInst) {
const BeginDeallocRefInst *bdr = cast<BeginDeallocRefInst>(&SI);
operand = bdr->getReference();
operand2 = bdr->getAllocation();
} else if (SI.getKind() == SILInstructionKind::IndexRawPointerInst) {
const IndexRawPointerInst *IRP = cast<IndexRawPointerInst>(&SI);
operand = IRP->getBase();