[PATCH] D27680: [CodeGen] Move lifetime.start of a variable when goto jumps back past its declaration

[John McCall via Phabricator via cfe-commits]

rjmccall added inline comments.


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Comment at: lib/CodeGen/CodeGenFunction.h:217
+  /// statements.
+  llvm::SmallVector<bool, 4> LabelSeenStack;
+
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Shouldn't this be maintained by some existing scoping structure like LexicalScope?


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Comment at: lib/CodeGen/CodeGenFunction.h:236
+    LabelSeenStack.back() = true;
+  }
+
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A label in a nested scope acts like a label in outer scopes, too.


https://reviews.llvm.org/D27680