Fix warnings in InstrProfTest.cpp

[ellis]

Summary

The warnings were introduced in https://reviews.llvm.org/D148150

[ellis]

Sorry it looks like I broke some builds. Hopefully this will fix them.

https://lab.llvm.org/buildbot/#/builders/57/builds/26047

/home/buildbots/docker-RHEL84-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/unittests/ProfileData/InstrProfTest.cpp:252:3: error: 'SmallVector' may not intend to support class template argument deduction [-Werror,-Wctad-maybe-unsupported]
  SmallVector Traces = {LargeTrace, SmallTrace};
  ^
/home/buildbots/docker-RHEL84-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/include/llvm/ADT/SmallVector.h:1199:22: note: add a deduction guide to suppress this warning
class LLVM_GSL_OWNER SmallVector : public SmallVectorImpl<T>,

[snehasish]

lgtm

Can you leave an example of the warnings in the review discussion here for posterity? Thanks!

llvm/unittests/ProfileData/InstrProfTest.cpp

TEST_F(InstrProfTest, test_merge_temporal_prof_traces_truncated) {
 
   TemporalProfTraceTy LargeTrace, SmallTrace;
   LargeTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("foo"),
                                  IndexedInstrProf::ComputeHash("bar"),
                                  IndexedInstrProf::ComputeHash("goo")};
   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();
   readProfile(std::move(Profile));
 
   ASSERT_TRUE(Reader->hasTemporalProfile());
   EXPECT_EQ(Reader->getTemporalProfTraceStreamSize(), 2U);
   EXPECT_THAT(Reader->getTemporalProfTraces(),
ASSERT_THAT_ERROR(Writer.mergeProfileKind(InstrProfKind::TemporalProfile),
                     Succeeded());
   ASSERT_THAT_ERROR(Writer2.mergeProfileKind(InstrProfKind::TemporalProfile),
                     Succeeded());
 
   TemporalProfTraceTy FooTrace, BarTrace;
   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);
 
   auto Profile = Writer.writeBuffer();
   readProfile(std::move(Profile));
 
   ASSERT_TRUE(Reader->hasTemporalProfile());
ASSERT_THAT_ERROR(Writer.mergeProfileKind(InstrProfKind::TemporalProfile),
                     Succeeded());
 
   TemporalProfTraceTy FooTrace, BarTrace, GooTrace;
   FooTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("foo")};
   BarTrace.FunctionNameRefs = {IndexedInstrProf::ComputeHash("bar")};
   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);
 
   auto Profile = Writer.writeBuffer();
   readProfile(std::move(Profile));
 
   ASSERT_TRUE(Reader->hasTemporalProfile());