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-rw-r--r--utils/TableGen/CodeGenDAGPatterns.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/utils/TableGen/CodeGenDAGPatterns.h b/utils/TableGen/CodeGenDAGPatterns.h
index 615802b..f1b0d37 100644
--- a/utils/TableGen/CodeGenDAGPatterns.h
+++ b/utils/TableGen/CodeGenDAGPatterns.h
@@ -145,7 +145,8 @@ public:
/// TreePatternNode objects!
class TreePatternNode {
/// The inferred type for this node, or EMVT::isUnknown if it hasn't
- /// been determined yet.
+ /// been determined yet. This is a std::vector because during inference
+ /// there may be multiple possible types.
std::vector<unsigned char> Types;
/// Operator - The Record for the operator if this is an interior node (not