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[clang][bytecode][NFC] Dead blocks are always uninitialized #152699

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Merged
merged 1 commit into from
Aug 8, 2025
Merged

[clang][bytecode][NFC] Dead blocks are always uninitialized #152699

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3 changes: 1 addition & 2 deletions clang/lib/AST/ByteCode/InterpBlock.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -133,8 +133,7 @@ DeadBlock::DeadBlock(DeadBlock *&Root, Block *Blk)
}

void DeadBlock::free() {
if (B.IsInitialized)
B.invokeDtor();
assert(!B.isInitialized());

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6 changes: 2 additions & 4 deletions clang/lib/AST/ByteCode/InterpState.cpp
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Expand Up @@ -85,6 +85,7 @@ void InterpState::deallocate(Block *B) {
if (B->IsInitialized)
B->invokeDtor();

assert(!B->isInitialized());
if (B->hasPointers()) {
size_t Size = B->getSize();
// Allocate a new block, transferring over pointers.
Expand All @@ -94,10 +95,7 @@ void InterpState::deallocate(Block *B) {
// Since the block doesn't hold any actual data anymore, we can just
// memcpy() everything over.
std::memcpy(D->rawData(), B->rawData(), B->getSize());
D->B.IsInitialized = B->IsInitialized;

// We moved the contents over to the DeadBlock.
B->IsInitialized = false;
D->B.IsInitialized = false;
}
}

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