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-rw-r--r--clang/include/clang/Analysis/Analyses/DataflowWorklist.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/clang/include/clang/Analysis/Analyses/DataflowWorklist.h b/clang/include/clang/Analysis/Analyses/DataflowWorklist.h
index dfa00f9dadd..2daee81c726 100644
--- a/clang/include/clang/Analysis/Analyses/DataflowWorklist.h
+++ b/clang/include/clang/Analysis/Analyses/DataflowWorklist.h
@@ -7,7 +7,10 @@
//
//===----------------------------------------------------------------------===//
//
-// DataflowWorklist is used in LiveVariables and UninitializedValues analyses
+// DataflowWorklist keeps track of blocks for dataflow analysis. It maintains a
+// vector of blocks for priority processing, and falls back upon a reverse
+// post-order iterator. It supports both forward (used in UninitializedValues)
+// and reverse (used in LiveVariables) analyses.
//
//===----------------------------------------------------------------------===//
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