diff --git a/clang/include/clang/Basic/DiagnosticDriverKinds.td b/clang/include/clang/Basic/DiagnosticDriverKinds.td
index ceb69091b2a51..0581bf353d936 100644
--- a/clang/include/clang/Basic/DiagnosticDriverKinds.td
+++ b/clang/include/clang/Basic/DiagnosticDriverKinds.td
@@ -683,6 +683,9 @@ def warn_drv_fine_grained_bitfield_accesses_ignored : Warning<
   "option '-ffine-grained-bitfield-accesses' cannot be enabled together with a sanitizer; flag ignored">,
   InGroup<OptionIgnored>;
 
+def err_drv_profile_instrument_use_path_with_no_kind : Error<
+  "option '-fprofile-instrument-use-path=' requires -fprofile-instrument-use=<kind>">;
+
 def note_drv_verify_prefix_spelling : Note<
   "-verify prefixes must start with a letter and contain only alphanumeric"
   " characters, hyphens, and underscores">;
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 9bfa1dd52effe..60c4ad408ee43 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -7957,6 +7957,11 @@ def fprofile_instrument_path_EQ : Joined<["-"], "fprofile-instrument-path=">,
     HelpText<"Generate instrumented code to collect execution counts into "
              "<file> (overridden by LLVM_PROFILE_FILE env var)">,
     MarshallingInfoString<CodeGenOpts<"InstrProfileOutput">>;
+def fprofile_instrument_use_EQ : Joined<["-"], "fprofile-instrument-use=">,
+    HelpText<"Enable PGO use instrumentation">, Values<"none,clang,llvm,csllvm,sample-coldcov">,
+    NormalizedValuesScope<"llvm::driver::ProfileInstrKind">,
+    NormalizedValues<["ProfileNone", "ProfileClangInstr", "ProfileIRInstr", "ProfileCSIRInstr", "ProfileIRSampleColdCov"]>,
+    MarshallingInfoEnum<CodeGenOpts<"ProfileUse">, "ProfileNone">;
 def fprofile_instrument_use_path_EQ :
     Joined<["-"], "fprofile-instrument-use-path=">,
     HelpText<"Specify the profile path in PGO use compilation">,
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index f6f7f22a09004..8d019d4b2da25 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -493,10 +493,15 @@ CodeGenModule::CodeGenModule(ASTContext &C,
     auto ReaderOrErr = llvm::IndexedInstrProfReader::create(
         CodeGenOpts.ProfileInstrumentUsePath, *FS,
         CodeGenOpts.ProfileRemappingFile);
-    // We're checking for profile read errors in CompilerInvocation, so if
-    // there was an error it should've already been caught. If it hasn't been
-    // somehow, trip an assertion.
-    assert(ReaderOrErr);
+    if (auto E = ReaderOrErr.takeError()) {
+      unsigned DiagID = Diags.getCustomDiagID(
+          DiagnosticsEngine::Error, "Error in reading profile %0: %1");
+      llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) {
+        Diags.Report(DiagID)
+            << CodeGenOpts.ProfileInstrumentUsePath << EI.message();
+      });
+      return;
+    }
     PGOReader = std::move(ReaderOrErr.get());
   }
 
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 684cc0902916f..107b9ffd439a3 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -41,6 +41,7 @@
 #include "llvm/Frontend/Debug/Options.h"
 #include "llvm/Object/ObjectFile.h"
 #include "llvm/Option/ArgList.h"
+#include "llvm/ProfileData/InstrProfReader.h"
 #include "llvm/Support/CodeGen.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Compression.h"
@@ -485,19 +486,47 @@ static void addPGOAndCoverageFlags(const ToolChain &TC, Compilation &C,
   }
 
   if (ProfileUseArg) {
+    SmallString<128> UsePathBuf;
+    StringRef UsePath;
     if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ))
-      CmdArgs.push_back(Args.MakeArgString(
-          Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue()));
+      UsePath = ProfileUseArg->getValue();
     else if ((ProfileUseArg->getOption().matches(
                   options::OPT_fprofile_use_EQ) ||
               ProfileUseArg->getOption().matches(
                   options::OPT_fprofile_instr_use))) {
-      SmallString<128> Path(
-          ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue());
-      if (Path.empty() || llvm::sys::fs::is_directory(Path))
-        llvm::sys::path::append(Path, "default.profdata");
+      UsePathBuf =
+          ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue();
+      if (UsePathBuf.empty() || llvm::sys::fs::is_directory(UsePathBuf))
+        llvm::sys::path::append(UsePathBuf, "default.profdata");
+      UsePath = UsePathBuf;
+    }
+    auto ReaderOrErr =
+        llvm::IndexedInstrProfReader::create(UsePath, D.getVFS());
+    if (auto E = ReaderOrErr.takeError()) {
+      auto DiagID = D.getDiags().getCustomDiagID(
+          DiagnosticsEngine::Error, "Error in reading profile %0: %1");
+      llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) {
+        D.Diag(DiagID) << UsePath.str() << EI.message();
+      });
+    } else {
+      std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
+          std::move(ReaderOrErr.get());
+      StringRef UseKind;
+      // Currently memprof profiles are only added at the IR level. Mark the
+      // profile type as IR in that case as well and the subsequent matching
+      // needs to detect which is available (might be one or both).
+      if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) {
+        if (PGOReader->hasCSIRLevelProfile())
+          UseKind = "csllvm";
+        else
+          UseKind = "llvm";
+      } else
+        UseKind = "clang";
+
+      CmdArgs.push_back(
+          Args.MakeArgString("-fprofile-instrument-use=" + UseKind));
       CmdArgs.push_back(
-          Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path));
+          Args.MakeArgString("-fprofile-instrument-use-path=" + UsePath));
     }
   }
 
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 422375240bab6..a0e0f3771846a 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1473,34 +1473,6 @@ static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) {
   return Buffer;
 }
 
-// Set the profile kind using fprofile-instrument-use-path.
-static void setPGOUseInstrumentor(CodeGenOptions &Opts,
-                                  const Twine &ProfileName,
-                                  llvm::vfs::FileSystem &FS,
-                                  DiagnosticsEngine &Diags) {
-  auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS);
-  if (auto E = ReaderOrErr.takeError()) {
-    unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error,
-                                            "Error in reading profile %0: %1");
-    llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) {
-      Diags.Report(DiagID) << ProfileName.str() << EI.message();
-    });
-    return;
-  }
-  std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
-    std::move(ReaderOrErr.get());
-  // Currently memprof profiles are only added at the IR level. Mark the profile
-  // type as IR in that case as well and the subsequent matching needs to detect
-  // which is available (might be one or both).
-  if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) {
-    if (PGOReader->hasCSIRLevelProfile())
-      Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileCSIRInstr);
-    else
-      Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileIRInstr);
-  } else
-    Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileClangInstr);
-}
-
 void CompilerInvocation::setDefaultPointerAuthOptions(
     PointerAuthOptions &Opts, const LangOptions &LangOpts,
     const llvm::Triple &Triple) {
@@ -5090,16 +5062,10 @@ bool CompilerInvocation::CreateFromArgsImpl(
     append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs);
   }
 
-  // Set PGOOptions. Need to create a temporary VFS to read the profile
-  // to determine the PGO type.
-  if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) {
-    auto FS =
-        createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles,
-                                  Diags, llvm::vfs::getRealFileSystem());
-    setPGOUseInstrumentor(Res.getCodeGenOpts(),
-                          Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS,
-                          Diags);
-  }
+  if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty() &&
+      Res.getCodeGenOpts().getProfileUse() ==
+          llvm::driver::ProfileInstrKind::ProfileNone)
+    Diags.Report(diag::err_drv_profile_instrument_use_path_with_no_kind);
 
   FixupInvocation(Res, Diags, Args, DashX);
 
diff --git a/clang/test/CodeGen/cspgo-instrumentation.c b/clang/test/CodeGen/cspgo-instrumentation.c
index 3f90bb4396d70..f42d68aba0eaa 100644
--- a/clang/test/CodeGen/cspgo-instrumentation.c
+++ b/clang/test/CodeGen/cspgo-instrumentation.c
@@ -9,19 +9,19 @@
 // RUN: llvm-profdata merge -o %t/noncs.profdata %S/Inputs/pgotestir.proftext
 //
 // Ensure Pass PGOInstrumentationUsePass and PGOInstrumentationGenPass are invoked.
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/noncs.profdata -fprofile-instrument=csllvm -fprofile-instrument-path=default.profraw  %s -fdebug-pass-manager  -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN2
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t/noncs.profdata -fprofile-instrument=csllvm -fprofile-instrument-path=default.profraw  %s -fdebug-pass-manager  -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN2
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN2: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN2: Running pass: PGOInstrumentationGenCreateVar on
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN2: Running pass: PGOInstrumentationGen on
 
 // Ensure Pass PGOInstrumentationUsePass is invoked only once.
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/noncs.profdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-USE
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t/noncs.profdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-USE
 // CHECK-PGOUSEPASS-INVOKED-USE: Running pass: PGOInstrumentationUse
 // CHECK-PGOUSEPASS-INVOKED-USE-NOT: Running pass: PGOInstrumentationGenCreateVar
 // CHECK-PGOUSEPASS-INVOKED-USE-NOT: Running pass: PGOInstrumentationUse
 //
 // Ensure Pass PGOInstrumentationUsePass is invoked twice.
 // RUN: llvm-profdata merge -o %t/cs.profdata %S/Inputs/pgotestir_cs.proftext
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/cs.profdata %s -fdebug-pass-manager  -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-USE2
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=csllvm -fprofile-instrument-use-path=%t/cs.profdata %s -fdebug-pass-manager  -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-USE2
 // CHECK-PGOUSEPASS-INVOKED-USE2: Running pass: PGOInstrumentationUse
 // CHECK-PGOUSEPASS-INVOKED-USE2: Running pass: PGOInstrumentationUse
diff --git a/clang/test/CodeGen/cspgo-instrumentation_lto.c b/clang/test/CodeGen/cspgo-instrumentation_lto.c
index c4296842ae50e..5d541c6688a1f 100644
--- a/clang/test/CodeGen/cspgo-instrumentation_lto.c
+++ b/clang/test/CodeGen/cspgo-instrumentation_lto.c
@@ -4,7 +4,7 @@
 // RUN: llvm-profdata merge -o %t/noncs.profdata %S/Inputs/pgotestir.proftext
 //
 // Ensure Pass PGOInstrumentationGenPass is not invoked in PreLink.
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/noncs.profdata -fprofile-instrument=csllvm %s -flto -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t/noncs.profdata -fprofile-instrument=csllvm %s -flto -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE: Running pass: PGOInstrumentationGenCreateVar
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE-NOT: Running pass: PGOInstrumentationGen on
@@ -18,12 +18,12 @@
 // RUN: llvm-profdata merge -o %t/cs.profdata %S/Inputs/pgotestir_cs.proftext
 //
 // Ensure Pass PGOInstrumentationUsePass is invoked Once in PreLink.
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/cs.profdata %s -flto -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=csllvm -fprofile-instrument-use-path=%t/cs.profdata %s -flto -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE-NOT: Running pass: PGOInstrumentationGenCreateVar
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE-NOT: Running pass: PGOInstrumentationUse
 //
 // Ensure Pass PGOInstrumentationUSEPass is invoked in PostLink.
-// RUN: %clang_cc1 -O2 -x ir %t/foo_fe_pm.bc -fdebug-pass-manager -fprofile-instrument-use-path=%t/cs.profdata -flto -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST
+// RUN: %clang_cc1 -O2 -x ir %t/foo_fe_pm.bc -fdebug-pass-manager -fprofile-instrument-use=csllvm -fprofile-instrument-use-path=%t/cs.profdata -flto -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST-NOT: Running pass: PGOInstrumentationUse
diff --git a/clang/test/CodeGen/cspgo-instrumentation_thinlto.c b/clang/test/CodeGen/cspgo-instrumentation_thinlto.c
index f79433827ce17..0627f64a69728 100644
--- a/clang/test/CodeGen/cspgo-instrumentation_thinlto.c
+++ b/clang/test/CodeGen/cspgo-instrumentation_thinlto.c
@@ -4,7 +4,7 @@
 // RUN: llvm-profdata merge -o %t/noncs.profdata %S/Inputs/pgotestir.proftext
 //
 // Ensure Pass PGOInstrumentationGenPass is not invoked in PreLink.
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/noncs.profdata -fprofile-instrument=csllvm %s -fprofile-instrument-path=default.profraw  -flto=thin -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t/noncs.profdata -fprofile-instrument=csllvm %s -fprofile-instrument-path=default.profraw  -flto=thin -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE: Running pass: PGOInstrumentationGenCreateVar
 // CHECK-CSPGOGENPASS-INVOKED-INSTR-GEN-PRE-NOT: Running pass: PGOInstrumentationGen on
@@ -19,16 +19,16 @@
 // RUN: llvm-profdata merge -o %t/cs.profdata %S/Inputs/pgotestir_cs.proftext
 //
 // Ensure Pass PGOInstrumentationUsePass is invoked Once in PreLink.
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t/cs.profdata %s -flto=thin -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=csllvm -fprofile-instrument-use-path=%t/cs.profdata %s -flto=thin -fdebug-pass-manager -emit-llvm-bc -o %t/foo_fe_pm.bc 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-PRE-NOT: Running pass: PGOInstrumentationUse
 //
 // RUN: llvm-lto -thinlto -o %t/foo_pm %t/foo_fe_pm.bc
 // Ensure Pass PGOInstrumentationUSEPass is invoked in PostLink.
-// RUN: %clang_cc1 -O2 -x ir %t/foo_fe_pm.bc -fthinlto-index=%t/foo_pm.thinlto.bc -fdebug-pass-manager -fprofile-instrument-use-path=%t/cs.profdata -flto=thin -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST
+// RUN: %clang_cc1 -O2 -x ir %t/foo_fe_pm.bc -fthinlto-index=%t/foo_pm.thinlto.bc -fdebug-pass-manager -fprofile-instrument-use=csllvm -fprofile-instrument-use-path=%t/cs.profdata -flto=thin -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST: Running pass: PGOInstrumentationUse
 // CHECK-CSPGOUSEPASS-INVOKED-INSTR-USE-POST-NOT: Running pass: PGOInstrumentationUse
 //
 // Finally, test if a non-cs profile is passed to PostLink passes, PGO UsePass is not invoked.
-// RUN: %clang_cc1 -O2 -x ir %t/foo_fe_pm.bc -fthinlto-index=%t/foo_pm.thinlto.bc -fdebug-pass-manager -fprofile-instrument-use-path=%t/noncs.profdata -flto=thin -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-INSTR-USE-POST
+// RUN: %clang_cc1 -O2 -x ir %t/foo_fe_pm.bc -fthinlto-index=%t/foo_pm.thinlto.bc -fdebug-pass-manager -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t/noncs.profdata -flto=thin -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-INSTR-USE-POST
 // CHECK-PGOUSEPASS-INVOKED-INSTR-USE-POST-NOT: Running pass: PGOInstrumentationUse
diff --git a/clang/test/CodeGen/opt-record.c b/clang/test/CodeGen/opt-record.c
index 391c14b7bbcc2..f54a6225760aa 100644
--- a/clang/test/CodeGen/opt-record.c
+++ b/clang/test/CodeGen/opt-record.c
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux-gnu -target-cpu x86-64 %s -o %t -opt-record-file %t.yaml -emit-obj
 // RUN: cat %t.yaml | FileCheck %s
 // RUN: llvm-profdata merge %S/Inputs/opt-record.proftext -o %t.profdata
-// RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux-gnu -target-cpu x86-64 -fprofile-instrument-use-path=%t.profdata %s -o %t -opt-record-file %t.yaml -emit-obj
+// RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux-gnu -target-cpu x86-64 -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata %s -o %t -opt-record-file %t.yaml -emit-obj
 // RUN: cat %t.yaml | FileCheck -check-prefix=CHECK -check-prefix=CHECK-PGO %s
 // RUN: %clang_cc1 -O3 -triple x86_64-unknown-linux-gnu -target-cpu x86-64 %s -o %t -opt-record-file %t.yaml -opt-record-passes inline -emit-obj
 // RUN: cat %t.yaml | FileCheck -check-prefix=CHECK-PASSES %s
diff --git a/clang/test/CodeGen/pgo-instrumentation.c b/clang/test/CodeGen/pgo-instrumentation.c
index c01658065497e..7c878250ae33e 100644
--- a/clang/test/CodeGen/pgo-instrumentation.c
+++ b/clang/test/CodeGen/pgo-instrumentation.c
@@ -15,10 +15,10 @@
 
 // Ensure Pass PGOInstrumentationUsePass is invoked.
 // RUN: llvm-profdata merge -o %t.profdata %S/Inputs/pgotestir.profraw
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t.profdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-INSTR-USE
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-INSTR-USE
 // CHECK-PGOUSEPASS-INVOKED-INSTR-USE: Running pass: PGOInstrumentationUse on
 //
 // Ensure Pass PGOInstrumentationUsePass is not invoked.
 // RUN: llvm-profdata merge -o %t.profdata %S/Inputs/pgotestclang.profraw
-// RUN: %clang_cc1 -O2 -fprofile-instrument-use-path=%t.profdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-USE-CLANG
+// RUN: %clang_cc1 -O2 -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata %s -fdebug-pass-manager -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=CHECK-PGOUSEPASS-INVOKED-USE-CLANG
 // CHECK-PGOUSEPASS-INVOKED-USE-CLANG-NOT: Running pass: PGOInstrumentationUse on
diff --git a/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c b/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c
index efbcc851ad770..a12574d28c731 100644
--- a/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c
+++ b/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c
@@ -7,7 +7,7 @@
 // RUN: llvm-lto -thinlto -o %t %t1.bo
 // RUN: %clang_cc1 -triple x86_64-linux-gnu -O2 -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -emit-obj -Rpass-analysis=info 2>&1 | FileCheck %s -check-prefix=CHECK-REMARK
 // RUN: llvm-profdata merge -o %t2.profdata %S/Inputs/thinlto_expect2.proftext
-// RUN: %clang_cc1 -triple x86_64-linux-gnu -O2 -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -fprofile-instrument-use-path=%t2.profdata -emit-obj 2>&1 | FileCheck %s -allow-empty -check-prefix=CHECK-NOWARNING
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -O2 -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t2.profdata -emit-obj 2>&1 | FileCheck %s -allow-empty -check-prefix=CHECK-NOWARNING
 
 int sum;
 __attribute__((noinline)) void bar(void) {
diff --git a/clang/test/CodeGenCXX/profile-remap.cpp b/clang/test/CodeGenCXX/profile-remap.cpp
index 4bce6df9d3af2..748c58d91d105 100644
--- a/clang/test/CodeGenCXX/profile-remap.cpp
+++ b/clang/test/CodeGenCXX/profile-remap.cpp
@@ -2,9 +2,9 @@
 //
 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-sample-use=%S/Inputs/profile-remap.samples -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SAMPLES
 // RUN: llvm-profdata merge -output %t.profdata %S/Inputs/profile-remap.proftext
-// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR
 // RUN: llvm-profdata merge -output %t.profdata %S/Inputs/profile-remap_entry.proftext
-// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR
 
 namespace Foo {
   struct X {};
diff --git a/clang/test/DebugInfo/CXX/fdebug-info-for-profiling.cpp b/clang/test/DebugInfo/CXX/fdebug-info-for-profiling.cpp
index e468a8098d7c8..63de73c90bd2f 100644
--- a/clang/test/DebugInfo/CXX/fdebug-info-for-profiling.cpp
+++ b/clang/test/DebugInfo/CXX/fdebug-info-for-profiling.cpp
@@ -13,7 +13,7 @@
 
 // RUN: echo > %t.proftext
 // RUN: llvm-profdata merge %t.proftext -o %t.profdata
-// RUN: %clang_cc1 -emit-llvm -fdebug-pass-manager -O1 -fprofile-instrument-use-path=%t.profdata -fdebug-info-for-profiling %s -o - 2>&1 | FileCheck %s --check-prefix=DISCR
+// RUN: %clang_cc1 -emit-llvm -fdebug-pass-manager -O1 -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -fdebug-info-for-profiling %s -o - 2>&1 | FileCheck %s --check-prefix=DISCR
 // RUN: %clang_cc1 -emit-llvm -fdebug-pass-manager -O1 -fdebug-info-for-profiling -fpseudo-probe-for-profiling %s -o - 2>&1 | FileCheck %s --check-prefix=PROBE
 
 // NODISCR-NOT: Running pass: AddDiscriminatorsPass
diff --git a/clang/test/Driver/Inputs/a.proftext b/clang/test/Driver/Inputs/a.proftext
new file mode 100644
index 0000000000000..05ab839db07c7
--- /dev/null
+++ b/clang/test/Driver/Inputs/a.proftext
@@ -0,0 +1,2 @@
+# IR level Instrumentation Flag
+:ir
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
index 26050760cb480..1b1169b71554a 100644
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -92,16 +92,21 @@
 // RUN: not %clang_cl -### /FAcsu -fprofile-instr-generate -fprofile-instr-use=file -- %s 2>&1 | FileCheck -check-prefix=CHECK-NO-MIX-GEN-USE %s
 // CHECK-NO-MIX-GEN-USE: '{{[a-z=-]*}}' not allowed with '{{[a-z=-]*}}'
 
+// RUN: rm -rf %t && mkdir %t
+// RUN: llvm-profdata merge -o %t/somefile.prof %S/Inputs/a.proftext
+// RUN: llvm-profdata merge -o %t/default.profdata %S/Inputs/a.proftext
+// RUN: cd %t
+
 // RUN: %clang_cl -### /FA -fprofile-instr-use -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE %s
 // RUN: %clang_cl -### /FA -fprofile-use -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE %s
-// RUN: %clang_cl -### /FA -fprofile-instr-use=/tmp/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
-// RUN: %clang_cl -### /FA -fprofile-use=/tmp/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
+// RUN: %clang_cl -### /FA -fprofile-instr-use=%t/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
+// RUN: %clang_cl -### /FA -fprofile-use=%t/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
 // RUN: %clang_cl -### /FAcsu -fprofile-instr-use -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE %s
 // RUN: %clang_cl -### /FAcsu -fprofile-use -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE %s
-// RUN: %clang_cl -### /FAcsu -fprofile-instr-use=/tmp/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
-// RUN: %clang_cl -### /FAcsu -fprofile-use=/tmp/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
-// CHECK-PROFILE-USE: "-fprofile-instrument-use-path=default.profdata"
-// CHECK-PROFILE-USE-FILE: "-fprofile-instrument-use-path=/tmp/somefile.prof"
+// RUN: %clang_cl -### /FAcsu -fprofile-instr-use=%t/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
+// RUN: %clang_cl -### /FAcsu -fprofile-use=%t/somefile.prof -- %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
+// CHECK-PROFILE-USE: "-fprofile-instrument-use-path={{.*}}default.profdata"
+// CHECK-PROFILE-USE-FILE: "-fprofile-instrument-use-path={{.*}}somefile.prof"
 
 // RUN: %clang_cl /GA -### -- %s 2>&1 | FileCheck -check-prefix=GA %s
 // GA: -ftls-model=local-exec
diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c
index 94b983f14e3ef..765f9d6ae3212 100644
--- a/clang/test/Driver/clang_f_opts.c
+++ b/clang/test/Driver/clang_f_opts.c
@@ -131,16 +131,22 @@
 // CHECK-DISABLE-COVERAGE-NOT: "-fcoverage-mapping"
 // CHECK-PROFILE-REMAP: "-fprofile-remapping-file=foo/bar.txt"
 
+// RUN: rm -rf %t && mkdir %t
+// RUN: llvm-profdata merge -o %t/somefile.prof %S/Inputs/a.proftext
+// RUN: llvm-profdata merge -o %t/default.profdata %S/Inputs/a.proftext
+// RUN: cd %t
+
 // RUN: %clang -### -S -fprofile-use %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE %s
 // RUN: %clang -### -S -fprofile-instr-use %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE %s
-// RUN: mkdir -p %t.d/some/dir
-// RUN: %clang -### -S -fprofile-use=%t.d/some/dir %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-DIR %s
-// RUN: %clang -### -S -fprofile-instr-use=/tmp/somefile.prof %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
+// RUN: mkdir -p %t/some/dir
+// RUN: cp %t/default.profdata %t/some/dir
+// RUN: %clang -### -S -fprofile-use=%t/some/dir %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-DIR %s
+// RUN: %clang -### -S -fprofile-instr-use=%t/somefile.prof %s 2>&1 | FileCheck -check-prefix=CHECK-PROFILE-USE-FILE %s
 // CHECK-PROFILE-USE: "-fprofile-instrument-use-path=default.profdata"
-// CHECK-PROFILE-USE-DIR: "-fprofile-instrument-use-path={{.*}}.d/some/dir{{/|\\\\}}default.profdata"
-// CHECK-PROFILE-USE-FILE: "-fprofile-instrument-use-path=/tmp/somefile.prof"
+// CHECK-PROFILE-USE-DIR: "-fprofile-instrument-use-path={{.*}}some/dir{{/|\\\\}}default.profdata"
+// CHECK-PROFILE-USE-FILE: "-fprofile-instrument-use-path={{.*}}somefile.prof"
 
-// RUN: %clang -### -S -fprofile-instr-use=%t.profdata -fdiagnostics-misexpect-tolerance=10 -Wmisexpect %s 2>&1 | FileCheck %s --check-prefix=CHECK-MISEXPECT-TOLLERANCE
+// RUN: %clang -### -S -fprofile-instr-use=%t/somefile.prof -fdiagnostics-misexpect-tolerance=10 -Wmisexpect %s 2>&1 | FileCheck %s --check-prefix=CHECK-MISEXPECT-TOLLERANCE
 // CHECK-MISEXPECT-TOLLERANCE: "-fdiagnostics-misexpect-tolerance=10"
 // CHECK-MISEXPECT-TOLLERANCE-NOT: argument unused
 
diff --git a/clang/test/Driver/fcs-profile-generate.c b/clang/test/Driver/fcs-profile-generate.c
index f69fa44be873e..ecb5aad58fd46 100644
--- a/clang/test/Driver/fcs-profile-generate.c
+++ b/clang/test/Driver/fcs-profile-generate.c
@@ -1,10 +1,14 @@
-// RUN: %clang -### -c -fprofile-use=a.profdata -fcs-profile-generate %s 2>&1 | FileCheck %s
+// RUN: rm -rf %t && mkdir %t
+// RUN: llvm-profdata merge -o %t/a.profdata %S/Inputs/a.proftext
+
+// RUN: %clang -### -c -fprofile-use=%t/a.profdata -fcs-profile-generate %s 2>&1 | FileCheck %s
 // CHECK:      "-fprofile-instrument=csllvm"
 // CHECK-NOT:  "-fprofile-instrument-path=
-// CHECK-SAME: "-fprofile-instrument-use-path=a.profdata"
+// CHECK-SAME: "-fprofile-instrument-use=llvm"
+// CHECK-SAME: "-fprofile-instrument-use-path={{.*}}a.profdata"
 
-// RUN: %clang -### -c -fprofile-use=a.profdata -fcs-profile-generate=dir %s 2>&1 | FileCheck %s --check-prefix=CHECK1
-// CHECK1: "-fprofile-instrument=csllvm"{{.*}} "-fprofile-instrument-path=dir{{/|\\\\}}default_%m.profraw" "-fprofile-instrument-use-path=a.profdata"
+// RUN: %clang -### -c -fprofile-use=%t/a.profdata -fcs-profile-generate=dir %s 2>&1 | FileCheck %s --check-prefix=CHECK1
+// CHECK1: "-fprofile-instrument=csllvm"{{.*}} "-fprofile-instrument-path=dir{{/|\\\\}}default_%m.profraw" "-fprofile-instrument-use=llvm" "-fprofile-instrument-use-path={{.*}}a.profdata"
 
 /// Degradation case. This usage does not make much sense.
 // RUN: %clang -### -c -fcs-profile-generate %s 2>&1 | FileCheck %s --check-prefix=NOUSE
diff --git a/clang/test/Driver/fsplit-machine-functions.c b/clang/test/Driver/fsplit-machine-functions.c
index 02bab476e831d..153aafba8fbd0 100644
--- a/clang/test/Driver/fsplit-machine-functions.c
+++ b/clang/test/Driver/fsplit-machine-functions.c
@@ -1,9 +1,13 @@
-// RUN: %clang -### --target=x86_64 -fprofile-use=default.profdata -fsplit-machine-functions %s 2>&1 | FileCheck %s --check-prefixes=CHECK,LTO-NEG
-// RUN: %clang -### --target=aarch64 -fprofile-use=default.profdata -fsplit-machine-functions %s 2>&1 | FileCheck %s --check-prefixes=CHECK,LTO-NEG
-// RUN: %clang -### --target=x86_64 -fprofile-use=default.profdata -fsplit-machine-functions -fno-split-machine-functions %s -c 2>&1 | FileCheck -check-prefix=NEG %s
+// RUN: rm -rf %t && mkdir %t
+// RUN: llvm-profdata merge -o %t/default.profdata %S/Inputs/a.proftext
+
+// RUN: %clang -### --target=x86_64 -fprofile-use=%t/default.profdata -fsplit-machine-functions %s 2>&1 | FileCheck %s --check-prefixes=CHECK,LTO-NEG
+// RUN: %clang -### --target=aarch64 -fprofile-use=%t/default.profdata -fsplit-machine-functions %s 2>&1 | FileCheck %s --check-prefixes=CHECK,LTO-NEG
+// RUN: %clang -### --target=x86_64 -fprofile-use=%t/default.profdata -fsplit-machine-functions -fno-split-machine-functions %s -c 2>&1 | FileCheck -check-prefix=NEG %s
 
 // CHECK:      "-fsplit-machine-functions"
-// CHECK-SAME: "-fprofile-instrument-use-path=default.profdata"
+// CHECK-SAME: "-fprofile-instrument-use=llvm"
+// CHECK-SAME: "-fprofile-instrument-use-path={{.*}}default.profdata"
 
 // NEG-NOT:    "-fsplit-machine-functions"
 
diff --git a/clang/test/Frontend/optimization-remark-with-hotness-new-pm.c b/clang/test/Frontend/optimization-remark-with-hotness-new-pm.c
index 173b43ba41bfe..0c7e96182aebf 100644
--- a/clang/test/Frontend/optimization-remark-with-hotness-new-pm.c
+++ b/clang/test/Frontend/optimization-remark-with-hotness-new-pm.c
@@ -15,7 +15,8 @@
 //
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \
 // RUN:     optimization-remark-with-hotness.c %s -emit-llvm-only \
-// RUN:     -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
+// RUN:     -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata \
+// RUN:     -Rpass=inline \
 // RUN:     -O1 \
 // RUN:     -Rpass-analysis=inline -Rpass-missed=inline \
 // RUN:     -fdiagnostics-show-hotness -verify
@@ -34,24 +35,24 @@
 // RUN:     -verify
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \
 // RUN:     optimization-remark-with-hotness.c %s -emit-llvm-only \
-// RUN:     -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
+// RUN:     -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
 // RUN:     -O1 \
 // RUN:     -Rpass-analysis=inline -Rpass-missed=inline \
 // RUN:     -fdiagnostics-show-hotness -fdiagnostics-hotness-threshold=10 -verify
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \
 // RUN:     optimization-remark-with-hotness.c %s -emit-llvm-only \
-// RUN:     -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
+// RUN:     -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
 // RUN:     -O1 \
 // RUN:     -Rpass-analysis=inline 2>&1 | FileCheck -check-prefix=HOTNESS_OFF %s
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \
 // RUN:     optimization-remark-with-hotness.c %s -emit-llvm-only \
-// RUN:     -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
+// RUN:     -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
 // RUN:     -O1 \
 // RUN:     -Rpass-analysis=inline -Rno-pass-with-hotness 2>&1 | FileCheck \
 // RUN:     -check-prefix=HOTNESS_OFF %s
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \
 // RUN:     optimization-remark-with-hotness.c %s -emit-llvm-only \
-// RUN:     -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
+// RUN:     -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -Rpass=inline \
 // RUN:     -Rpass-analysis=inline -fdiagnostics-show-hotness \
 // RUN:     -fdiagnostics-hotness-threshold=100  2>&1 \
 // RUN:     | FileCheck -allow-empty -check-prefix=THRESHOLD %s
diff --git a/clang/test/Profile/c-captured.c b/clang/test/Profile/c-captured.c
index 3a802494eb6a6..e38798983b6c2 100644
--- a/clang/test/Profile/c-captured.c
+++ b/clang/test/Profile/c-captured.c
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOGEN -check-prefix=PGOALL %s
 
 // RUN: llvm-profdata merge %S/Inputs/c-captured.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE -check-prefix=PGOALL %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE -check-prefix=PGOALL %s
 
 // PGOGEN: @[[DCC:__profc_debug_captured]] = private global [3 x i64] zeroinitializer
 // PGOGEN: @[[CSC:__profc_c_captured.c___captured_stmt]] = private global [2 x i64] zeroinitializer
diff --git a/clang/test/Profile/c-counter-overflows.c b/clang/test/Profile/c-counter-overflows.c
index 5cb32bbc30af4..bc12865b32b5d 100644
--- a/clang/test/Profile/c-counter-overflows.c
+++ b/clang/test/Profile/c-counter-overflows.c
@@ -2,7 +2,7 @@
 // truncated.
 
 // RUN: llvm-profdata merge %S/Inputs/c-counter-overflows.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-counter-overflows.c %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-counter-overflows.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck %s
 
 typedef unsigned long long uint64_t;
 
diff --git a/clang/test/Profile/c-general.c b/clang/test/Profile/c-general.c
index 2f621ec9b0bf9..ee36a43dac081 100644
--- a/clang/test/Profile/c-general.c
+++ b/clang/test/Profile/c-general.c
@@ -3,11 +3,11 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOGEN %s
 
 // RUN: llvm-profdata merge %S/Inputs/c-general.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use-path=%S/Inputs/c-general.profdata.v5 | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use-path=%S/Inputs/c-general.profdata.v3 | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%S/Inputs/c-general.profdata.v5 | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%S/Inputs/c-general.profdata.v3 | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
 // Also check compatibility with older profiles.
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use-path=%S/Inputs/c-general.profdata.v1 | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-general.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%S/Inputs/c-general.profdata.v1 | FileCheck -allow-deprecated-dag-overlap  -check-prefix=PGOUSE %s
 
 // RUN: %clang -fprofile-generate -E -dM %s | FileCheck -match-full-lines -check-prefix=PROFGENMACRO %s
 // RUN: %clang -fprofile-instr-generate -E -dM %s | FileCheck -match-full-lines -check-prefix=PROFGENMACRO %s
diff --git a/clang/test/Profile/c-outdated-data.c b/clang/test/Profile/c-outdated-data.c
index 454e4d799e0bb..7071401599b89 100644
--- a/clang/test/Profile/c-outdated-data.c
+++ b/clang/test/Profile/c-outdated-data.c
@@ -4,8 +4,8 @@
 // doesn't play well with warnings that have no line number.
 
 // RUN: llvm-profdata merge %S/Inputs/c-outdated-data.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -check-prefix=NO_MISSING
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -Wprofile-instr-missing -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -check-prefix=WITH_MISSING
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -check-prefix=NO_MISSING
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -Wprofile-instr-missing -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -check-prefix=WITH_MISSING
 
 // NO_MISSING: warning: profile data may be out of date: of 3 functions, 2 have mismatched data that will be ignored
 // NO_MISSING-NOT: 1 has no data
diff --git a/clang/test/Profile/c-unprofiled-blocks.c b/clang/test/Profile/c-unprofiled-blocks.c
index e25bbc50de2ba..bcf3e06371e09 100644
--- a/clang/test/Profile/c-unprofiled-blocks.c
+++ b/clang/test/Profile/c-unprofiled-blocks.c
@@ -2,7 +2,7 @@
 // runs) shouldn't have any branch weight metadata added.
 
 // RUN: llvm-profdata merge %S/Inputs/c-unprofiled-blocks.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-unprofiled-blocks.c %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-unprofiled-blocks.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck -check-prefix=PGOUSE %s
 
 // PGOUSE-LABEL: @never_called(i32 noundef %i)
 int never_called(int i) {
diff --git a/clang/test/Profile/c-unprofiled.c b/clang/test/Profile/c-unprofiled.c
index 3466079f69bd8..3f52d773e1c06 100644
--- a/clang/test/Profile/c-unprofiled.c
+++ b/clang/test/Profile/c-unprofiled.c
@@ -7,7 +7,7 @@
 // doesn't play well with warnings that have no line number.
 
 // RUN: llvm-profdata merge %S/Inputs/c-unprofiled.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-unprofiled.c -I %S/Inputs/ %s -o /dev/null -emit-llvm -fprofile-instrument-use-path=%t.profdata -Wprofile-instr-unprofiled 2>&1 | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-unprofiled.c -I %S/Inputs/ %s -o /dev/null -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -Wprofile-instr-unprofiled 2>&1 | FileCheck %s
 
 // CHECK: warning: no profile data available for file "c-unprofiled.c"
 
diff --git a/clang/test/Profile/cxx-class.cpp b/clang/test/Profile/cxx-class.cpp
index c38a81e0d86e8..ce9ddcfc4553f 100644
--- a/clang/test/Profile/cxx-class.cpp
+++ b/clang/test/Profile/cxx-class.cpp
@@ -9,7 +9,7 @@
 // RUN: FileCheck --input-file=%tgen -check-prefix=VDTRGEN %s
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-class.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -triple %itanium_abi_triple > %tuse
+// RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -triple %itanium_abi_triple > %tuse
 // RUN: FileCheck --input-file=%tuse -check-prefix=CTRUSE %s
 // RUN: FileCheck --input-file=%tuse -check-prefix=DTRUSE %s
 // RUN: FileCheck --input-file=%tuse -check-prefix=MTHUSE %s
diff --git a/clang/test/Profile/cxx-hash-v2.cpp b/clang/test/Profile/cxx-hash-v2.cpp
index cb633d53f6f30..53097228ba521 100644
--- a/clang/test/Profile/cxx-hash-v2.cpp
+++ b/clang/test/Profile/cxx-hash-v2.cpp
@@ -6,8 +6,8 @@
 // RUN: diff %t.hashes %t.hashes.unique
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-hash-v2.proftext -o %t.profdata
-// RUN: %clang_cc1 -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-apple-macosx10.9 -main-file-name cxx-hash-v2.mm %s -o /dev/null -emit-llvm -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -allow-empty
-// RUN: %clang_cc1 -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-apple-macosx10.9 -main-file-name cxx-hash-v2.mm %s -o /dev/null -emit-llvm -fprofile-instrument-use-path=%S/Inputs/cxx-hash-v2.profdata.v5 2>&1 | FileCheck %s -allow-empty
+// RUN: %clang_cc1 -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-apple-macosx10.9 -main-file-name cxx-hash-v2.mm %s -o /dev/null -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -allow-empty
+// RUN: %clang_cc1 -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-apple-macosx10.9 -main-file-name cxx-hash-v2.mm %s -o /dev/null -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%S/Inputs/cxx-hash-v2.profdata.v5 2>&1 | FileCheck %s -allow-empty
 
 // CHECK-NOT: warning: profile data may be out of date
 
diff --git a/clang/test/Profile/cxx-lambda.cpp b/clang/test/Profile/cxx-lambda.cpp
index 589f922c70782..b05fdd3d26b7c 100644
--- a/clang/test/Profile/cxx-lambda.cpp
+++ b/clang/test/Profile/cxx-lambda.cpp
@@ -5,7 +5,7 @@
 // RUN: FileCheck -allow-deprecated-dag-overlap  --input-file=%tgen -check-prefix=LMBGEN %s
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-lambda.proftext -o %t.profdata
-// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata > %tuse
+// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata > %tuse
 // RUN: FileCheck -allow-deprecated-dag-overlap  --input-file=%tuse -check-prefix=PGOUSE %s
 // RUN: FileCheck -allow-deprecated-dag-overlap  --input-file=%tuse -check-prefix=LMBUSE %s
 
diff --git a/clang/test/Profile/cxx-missing-bodies.cpp b/clang/test/Profile/cxx-missing-bodies.cpp
index 6d34fca482c99..87541c2825b25 100644
--- a/clang/test/Profile/cxx-missing-bodies.cpp
+++ b/clang/test/Profile/cxx-missing-bodies.cpp
@@ -2,7 +2,7 @@
 //
 // Don't crash when presented profile data for functions without bodies:
 // RUN: llvm-profdata merge %S/Inputs/cxx-missing-bodies.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -std=c++11 -emit-llvm-only -triple=i386-pc-win32 -fno-rtti -fprofile-instrument-use-path=%t.profdata -w
+// RUN: %clang_cc1 %s -std=c++11 -emit-llvm-only -triple=i386-pc-win32 -fno-rtti -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -w
 
 // GEN-NOT: __profn{{.*}}??_GA@@UAEPAXI@Z
 // GEN-NOT: __profn{{.*}}??_DA@@QAEXXZ
diff --git a/clang/test/Profile/cxx-never-executed-branch.cpp b/clang/test/Profile/cxx-never-executed-branch.cpp
index 812f65f3996d3..d7bdd3c67a15d 100644
--- a/clang/test/Profile/cxx-never-executed-branch.cpp
+++ b/clang/test/Profile/cxx-never-executed-branch.cpp
@@ -1,7 +1,7 @@
 // Test that clang doesn't emit llvm.expect when the counter is 0
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-never-executed-branch.proftext -o %t.profdata
-// RUN: %clang_cc1 -std=c++20 %s -triple %itanium_abi_triple -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -disable-llvm-passes | FileCheck %s
+// RUN: %clang_cc1 -std=c++20 %s -triple %itanium_abi_triple -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -disable-llvm-passes | FileCheck %s
 
 int rand();
 
diff --git a/clang/test/Profile/cxx-rangefor.cpp b/clang/test/Profile/cxx-rangefor.cpp
index 58c578c3c1017..43bdaa9b70aeb 100644
--- a/clang/test/Profile/cxx-rangefor.cpp
+++ b/clang/test/Profile/cxx-rangefor.cpp
@@ -4,7 +4,7 @@
 // RUN: FileCheck --input-file=%tgen -check-prefix=CHECK -check-prefix=PGOGEN %s
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-rangefor.proftext -o %t.profdata
-// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-rangefor.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata > %tuse
+// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-rangefor.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata > %tuse
 // RUN: FileCheck --input-file=%tuse -check-prefix=CHECK -check-prefix=PGOUSE %s
 
 // PGOGEN: @[[RFC:__profc__Z9range_forv]] = {{(private|internal)}} global [5 x i64] zeroinitializer
diff --git a/clang/test/Profile/cxx-templates.cpp b/clang/test/Profile/cxx-templates.cpp
index 51c8f1f6d1edd..09cf11e841dc4 100644
--- a/clang/test/Profile/cxx-templates.cpp
+++ b/clang/test/Profile/cxx-templates.cpp
@@ -6,7 +6,7 @@
 // RUN: FileCheck --input-file=%tgen -check-prefix=T100GEN -check-prefix=ALL %s
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-templates.proftext -o %t.profdata
-// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-templates.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata > %tuse
+// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-templates.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata > %tuse
 // RUN: FileCheck --input-file=%tuse -check-prefix=T0USE -check-prefix=ALL %s
 // RUN: FileCheck --input-file=%tuse -check-prefix=T100USE -check-prefix=ALL %s
 
diff --git a/clang/test/Profile/cxx-throws.cpp b/clang/test/Profile/cxx-throws.cpp
index e989c2d39dfbb..fc04add24b97d 100644
--- a/clang/test/Profile/cxx-throws.cpp
+++ b/clang/test/Profile/cxx-throws.cpp
@@ -7,8 +7,8 @@
 // RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument=clang -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOGEN-EXC %s
 
 // RUN: llvm-profdata merge %S/Inputs/cxx-throws.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOUSE %s
-// RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOUSE-EXC %s
+// RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOUSE-EXC %s
 
 // PGOGEN: @[[THC:__profc__Z6throwsv]] = {{(private|internal)}} global [9 x i64] zeroinitializer
 // PGOGEN-EXC: @[[THC:__profc__Z6throwsv]] = {{(private|internal)}} global [9 x i64] zeroinitializer
diff --git a/clang/test/Profile/func-entry.c b/clang/test/Profile/func-entry.c
index 4a4ca2288352b..27d11cc254ea8 100644
--- a/clang/test/Profile/func-entry.c
+++ b/clang/test/Profile/func-entry.c
@@ -1,7 +1,7 @@
 // Test that function entry counts are set correctly.
 
 // RUN: llvm-profdata merge %S/Inputs/func-entry.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck %s
+// RUN: %clang_cc1 %s -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck %s
 
 void foo(void);
 
diff --git a/clang/test/Profile/misexpect-branch-cold.c b/clang/test/Profile/misexpect-branch-cold.c
index 6d34f92a25454..43ef3fcdda0ba 100644
--- a/clang/test/Profile/misexpect-branch-cold.c
+++ b/clang/test/Profile/misexpect-branch-cold.c
@@ -1,7 +1,7 @@
 // Test that misexpect emits no warning when prediction is correct
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-branch.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
+// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
 
 // expected-no-diagnostics
 #define likely(x) __builtin_expect(!!(x), 1)
diff --git a/clang/test/Profile/misexpect-branch-nonconst-expected-val.c b/clang/test/Profile/misexpect-branch-nonconst-expected-val.c
index c5167b9a2a0b7..fa2b4f1755040 100644
--- a/clang/test/Profile/misexpect-branch-nonconst-expected-val.c
+++ b/clang/test/Profile/misexpect-branch-nonconst-expected-val.c
@@ -1,7 +1,7 @@
 // Test that misexpect emits no warning when condition is not a compile-time constant
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-branch-nonconst-expect-arg.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
+// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
 
 // expected-no-diagnostics
 int foo(int);
diff --git a/clang/test/Profile/misexpect-branch-unpredictable.c b/clang/test/Profile/misexpect-branch-unpredictable.c
index 6c4f90146a2ae..ffaf25aed82bd 100644
--- a/clang/test/Profile/misexpect-branch-unpredictable.c
+++ b/clang/test/Profile/misexpect-branch-unpredictable.c
@@ -1,7 +1,7 @@
 // Test that misexpect emits no warning when prediction is correct
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-branch.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
+// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
 
 // expected-no-diagnostics
 #define unpredictable(x) __builtin_unpredictable(!!(x))
diff --git a/clang/test/Profile/misexpect-branch.c b/clang/test/Profile/misexpect-branch.c
index 5c4394405e178..fb7225047fcb0 100644
--- a/clang/test/Profile/misexpect-branch.c
+++ b/clang/test/Profile/misexpect-branch.c
@@ -2,12 +2,12 @@
 
 // test diagnostics are issued when profiling data mis-matches annotations
 // RUN: llvm-profdata merge %S/Inputs/misexpect-branch.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify=imprecise -Wmisexpect
-// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify=exact -Wmisexpect -debug-info-kind=line-tables-only
+// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify=imprecise -Wmisexpect
+// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify=exact -Wmisexpect -debug-info-kind=line-tables-only
 
 // there should be no diagnostics when the tolerance is sufficiently high, or when -Wmisexpect is not requested
-// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify=foo -fdiagnostics-misexpect-tolerance=10 -Wmisexpect -debug-info-kind=line-tables-only
-// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify=foo
+// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify=foo -fdiagnostics-misexpect-tolerance=10 -Wmisexpect -debug-info-kind=line-tables-only
+// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify=foo
 
 // Ensure we emit an error when we don't use pgo with tolerance threshold
 // RUN: %clang_cc1 %s -O2 -o - -emit-llvm  -fdiagnostics-misexpect-tolerance=10 -Wmisexpect -debug-info-kind=line-tables-only 2>&1 | FileCheck -check-prefix=NO_PGO %s
diff --git a/clang/test/Profile/misexpect-switch-default.c b/clang/test/Profile/misexpect-switch-default.c
index cd337b9430171..89eb64fea420b 100644
--- a/clang/test/Profile/misexpect-switch-default.c
+++ b/clang/test/Profile/misexpect-switch-default.c
@@ -1,7 +1,7 @@
 // Test that misexpect detects mis-annotated switch statements for default case
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-switch-default.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
+// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
 
 #define inner_loop 1000
 #define outer_loop 20
diff --git a/clang/test/Profile/misexpect-switch-nonconst.c b/clang/test/Profile/misexpect-switch-nonconst.c
index cff3bce0d6d0a..f18baea83cc1d 100644
--- a/clang/test/Profile/misexpect-switch-nonconst.c
+++ b/clang/test/Profile/misexpect-switch-nonconst.c
@@ -1,7 +1,7 @@
 // Test that misexpect emits no warning when switch condition is non-const
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-switch-nonconst.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify
+// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify
 
 // expected-no-diagnostics
 
diff --git a/clang/test/Profile/misexpect-switch-only-default-case.c b/clang/test/Profile/misexpect-switch-only-default-case.c
index 26e8564c81b54..ef0f124305625 100644
--- a/clang/test/Profile/misexpect-switch-only-default-case.c
+++ b/clang/test/Profile/misexpect-switch-only-default-case.c
@@ -1,7 +1,7 @@
 // Test that misexpect emits no warning when there is only one switch case
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-switch-default-only.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
+// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
 
 // expected-no-diagnostics
 
diff --git a/clang/test/Profile/misexpect-switch.c b/clang/test/Profile/misexpect-switch.c
index 84a7174f635fd..ae13cf7675706 100644
--- a/clang/test/Profile/misexpect-switch.c
+++ b/clang/test/Profile/misexpect-switch.c
@@ -1,7 +1,7 @@
 // Test that misexpect detects mis-annotated switch statements
 
 // RUN: llvm-profdata merge %S/Inputs/misexpect-switch.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
+// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
 
 #define inner_loop 1000
 #define outer_loop 20
diff --git a/clang/test/Profile/objc-general.m b/clang/test/Profile/objc-general.m
index a3dcb1b2128c6..a711645e7c833 100644
--- a/clang/test/Profile/objc-general.m
+++ b/clang/test/Profile/objc-general.m
@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name objc-general.m %s -o - -emit-llvm -fblocks -fprofile-instrument=clang | FileCheck -check-prefix=PGOGEN %s
 
 // RUN: llvm-profdata merge %S/Inputs/objc-general.proftext -o %t.profdata
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name objc-general.m %s -o - -emit-llvm -fblocks -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck -check-prefix=PGOUSE %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name objc-general.m %s -o - -emit-llvm -fblocks -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck -check-prefix=PGOUSE %s
 
 // PGOUSE-NOT: warning: profile data may be out of date
 
diff --git a/clang/test/Profile/profile-does-not-exist-ir.c b/clang/test/Profile/profile-does-not-exist-ir.c
index 842a3d44a387b..cb7bef2b7043b 100644
--- a/clang/test/Profile/profile-does-not-exist-ir.c
+++ b/clang/test/Profile/profile-does-not-exist-ir.c
@@ -1,4 +1,8 @@
-// RUN: not %clang_cc1 -emit-llvm -x ir %s -o - -fprofile-instrument-use-path=%t.nonexistent.profdata 2>&1 | FileCheck %s
+; RUN: not %clang_cc1 -emit-llvm -x ir %s -o - -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.nonexistent.profdata 2>&1 | FileCheck %s
 
-// CHECK: error: Error in reading profile {{.*}}.nonexistent.profdata:
-// CHECK-NOT: Assertion failed
+; CHECK: error: {{.*}}.nonexistent.profdata:
+; CHECK-NOT: Assertion failed
+
+define i32 @main() {
+  ret i32 0
+}
diff --git a/clang/test/Profile/profile-does-not-exist.c b/clang/test/Profile/profile-does-not-exist.c
index 88d55d8668ef8..e9e04bed19b84 100644
--- a/clang/test/Profile/profile-does-not-exist.c
+++ b/clang/test/Profile/profile-does-not-exist.c
@@ -1,4 +1,8 @@
-// RUN: not %clang_cc1 -emit-llvm %s -o - -fprofile-instrument-use-path=%t.nonexistent.profdata 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -emit-llvm %s -o - -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.nonexistent.profdata 2>&1 | FileCheck %s
 
 // CHECK: error: Error in reading profile {{.*}}.nonexistent.profdata:
 // CHECK-NOT: Assertion failed
+
+int main() {
+  return 0;
+}
diff --git a/clang/test/Profile/profile-summary.c b/clang/test/Profile/profile-summary.c
index 47fd9e85a4539..31e8497ed6398 100644
--- a/clang/test/Profile/profile-summary.c
+++ b/clang/test/Profile/profile-summary.c
@@ -1,7 +1,7 @@
 // Test that profile summary is set correctly.
 
 // RUN: llvm-profdata merge %S/Inputs/max-function-count.proftext -o %t.profdata
-// RUN: %clang_cc1 %s -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck %s
+// RUN: %clang_cc1 %s -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck %s
 //
 int begin(int i) {
   if (i)