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--- lib/CodeGen/Analysis.cpp.orig 2020-03-26 15:48:08 UTC
+++ lib/CodeGen/Analysis.cpp
@@ -538,11 +538,10 @@ bool llvm::isInTailCallPosition(ImmutableCallSite CS,
// Debug info intrinsics do not get in the way of tail call optimization.
if (isa<DbgInfoIntrinsic>(BBI))
continue;
- // A lifetime end or assume intrinsic should not stop tail call
+ // An assume intrinsic should not stop tail call
// optimization.
if (const IntrinsicInst *II = dyn_cast<IntrinsicInst>(BBI))
- if (II->getIntrinsicID() == Intrinsic::lifetime_end ||
- II->getIntrinsicID() == Intrinsic::assume)
+ if (II->getIntrinsicID() == Intrinsic::assume)
continue;
if (BBI->mayHaveSideEffects() || BBI->mayReadFromMemory() ||
!isSafeToSpeculativelyExecute(&*BBI))
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