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[gardening] Fix accidental \t:s

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This commit is contained in:
practicalswift
2016-10-13 20:24:09 +02:00
parent 4997fdafe7
commit ae5542609e
1 changed files with 10 additions and 10 deletions
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20
lib/SILOptimizer/Transforms/SimplifyCFG.cpp
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@@ -3420,16 +3420,16 @@ bool SimplifyCFG::simplifyProgramTerminationBlock(SILBasicBlock *BB) {
bool Changed = false;
llvm::SmallPtrSet<SILInstruction *, 4> InstsToRemove;
for (auto &I : *BB) {
// We can only remove the instructions below from the ARC-inert BB
// We *can't* replace copy_addr with move instructions:
// If the copy_addr was [take] [initialization]:
// * previous passes would have replaced it with moves
// If the copy_addr contains [initialization]:
// * nothing we can do - the target address is invalid
// Else, i.e. the copy_addr was [take] assignment, it is not always safe:
// The type being operated on might contain weak references,
// or other side references - We'll corrupt the weak reference table
// if we fail to release the old value.
// We can only remove the instructions below from the ARC-inert BB
// We *can't* replace copy_addr with move instructions:
// If the copy_addr was [take] [initialization]:
// * previous passes would have replaced it with moves
// If the copy_addr contains [initialization]:
// * nothing we can do - the target address is invalid
// Else, i.e. the copy_addr was [take] assignment, it is not always safe:
// The type being operated on might contain weak references,
// or other side references - We'll corrupt the weak reference table
// if we fail to release the old value.
if (!isa<StrongReleaseInst>(I) && !isa<UnownedReleaseInst>(I) &&
!isa<ReleaseValueInst>(I) && !isa<DestroyAddrInst>(I))
continue;