diff --git a/llvm/unittests/ProfileData/InstrProfTest.cpp b/llvm/unittests/ProfileData/InstrProfTest.cpp
--- a/llvm/unittests/ProfileData/InstrProfTest.cpp
+++ b/llvm/unittests/ProfileData/InstrProfTest.cpp
@@ -249,7 +249,7 @@
   SmallTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("foo"),
                                  IndexedInstrProf::ComputeHash("bar")};
 
-  SmallVector Traces = {LargeTrace, SmallTrace};
+  SmallVector<TemporalProfTraceTy, 4> Traces = {LargeTrace, SmallTrace};
   Writer.addTemporalProfileTraces(Traces, 2);
 
   auto Profile = Writer.writeBuffer();
@@ -275,7 +275,7 @@
   FooTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("foo")};
   BarTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("bar")};
 
-  SmallVector Traces1({FooTrace}), Traces2({BarTrace});
+  SmallVector<TemporalProfTraceTy, 4> Traces1({FooTrace}), Traces2({BarTrace});
   Writer.addTemporalProfileTraces(Traces1, 1);
   Writer2.addTemporalProfileTraces(Traces2, 1);
   Writer.mergeRecordsFromWriter(std::move(Writer2), Err);
@@ -302,10 +302,11 @@
   GooTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("Goo")};
 
   // Add some sampled traces
-  SmallVector SampledTraces = {FooTrace, BarTrace, GooTrace};
+  SmallVector<TemporalProfTraceTy, 4> SampledTraces = {FooTrace, BarTrace,
+                                                       GooTrace};
   Writer.addTemporalProfileTraces(SampledTraces, 5);
   // Add some unsampled traces
-  SmallVector UnsampledTraces = {BarTrace, GooTrace};
+  SmallVector<TemporalProfTraceTy, 4> UnsampledTraces = {BarTrace, GooTrace};
   Writer.addTemporalProfileTraces(UnsampledTraces, 2);
   UnsampledTraces = {FooTrace};
   Writer.addTemporalProfileTraces(UnsampledTraces, 1);