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-rw-r--r--utils/TableGen/CodeGenRegisters.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/utils/TableGen/CodeGenRegisters.cpp b/utils/TableGen/CodeGenRegisters.cpp
index 35afaf8efb..ddb5329fb7 100644
--- a/utils/TableGen/CodeGenRegisters.cpp
+++ b/utils/TableGen/CodeGenRegisters.cpp
@@ -775,7 +775,8 @@ void CodeGenRegBank::inferCommonSubClass(CodeGenRegisterClass *RC) {
CodeGenRegister::Set Intersection;
std::set_intersection(Memb1.begin(), Memb1.end(),
Memb2.begin(), Memb2.end(),
- std::inserter(Intersection, Intersection.begin()));
+ std::inserter(Intersection, Intersection.begin()),
+ CodeGenRegister::Less());
// Skip disjoint class pairs.
if (Intersection.empty())