Switch -mcount and -finstrument-functions to emit EnterExitInstrumenter attributes

This updates -mcount to use the new attribute names (LLVM r318195), and
switches over -finstrument-functions to also use these attributes rather
than inserting instrumentation in the frontend.

It also adds a new flag, -finstrument-functions-after-inlining, which
makes the cygprofile instrumentation get inserted after inlining rather
than before.

Differential Revision: https://reviews.llvm.org/D39331

llvm-svn: 318199

clang/include/clang/Driver/Options.td

@@ -1028,6 +1028,8 @@ def finput_charset_EQ : Joined<["-"], "finput-charset=">, Group<f_Group>;
 def fexec_charset_EQ : Joined<["-"], "fexec-charset=">, Group<f_Group>;
 def finstrument_functions : Flag<["-"], "finstrument-functions">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Generate calls to instrument function entry and exit">;
+def finstrument_functions_after_inlining : Flag<["-"], "finstrument-functions-after-inlining">, Group<f_Group>, Flags<[CC1Option]>,
+  HelpText<"Like -finstrument-functions, but insert the calls after inlining">;
 
 def fxray_instrument : Flag<["-"], "fxray-instrument">, Group<f_Group>,
   Flags<[CC1Option]>,

clang/include/clang/Frontend/CodeGenOptions.def

@@ -76,6 +76,8 @@ CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
 CODEGENOPT(FunctionSections  , 1, 0) ///< Set when -ffunction-sections is enabled.
 CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is
                                        ///< enabled.
+CODEGENOPT(InstrumentFunctionsAfterInlining , 1, 0) ///< Set when
+                          ///< -finstrument-functions-after-inlining is enabled.
 
 CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is
                                            ///< enabled.

clang/lib/CodeGen/CodeGenFunction.cpp

@@ -354,8 +354,12 @@ void CodeGenFunction::FinishFunction(SourceLocation EndLoc) {
   // Emit function epilog (to return).
   llvm::DebugLoc Loc = EmitReturnBlock();
 
-  if (ShouldInstrumentFunction())
-    EmitFunctionInstrumentation("__cyg_profile_func_exit");
+  if (ShouldInstrumentFunction()) {
+    CurFn->addFnAttr(!CGM.getCodeGenOpts().InstrumentFunctionsAfterInlining
+                         ? "instrument-function-exit"
+                         : "instrument-function-exit-inlined",
+                     "__cyg_profile_func_exit");
+  }
 
   // Emit debug descriptor for function end.
   if (CGDebugInfo *DI = getDebugInfo())
@@ -438,7 +442,8 @@ void CodeGenFunction::FinishFunction(SourceLocation EndLoc) {
 /// ShouldInstrumentFunction - Return true if the current function should be
 /// instrumented with __cyg_profile_func_* calls
 bool CodeGenFunction::ShouldInstrumentFunction() {
-  if (!CGM.getCodeGenOpts().InstrumentFunctions)
+  if (!CGM.getCodeGenOpts().InstrumentFunctions &&
+      !CGM.getCodeGenOpts().InstrumentFunctionsAfterInlining)
     return false;
   if (!CurFuncDecl || CurFuncDecl->hasAttr<NoInstrumentFunctionAttr>())
     return false;
@@ -488,31 +493,6 @@ CodeGenFunction::DecodeAddrUsedInPrologue(llvm::Value *F,
                             "decoded_addr");
 }
 
-/// EmitFunctionInstrumentation - Emit LLVM code to call the specified
-/// instrumentation function with the current function and the call site, if
-/// function instrumentation is enabled.
-void CodeGenFunction::EmitFunctionInstrumentation(const char *Fn) {
-  auto NL = ApplyDebugLocation::CreateArtificial(*this);
-  // void __cyg_profile_func_{enter,exit} (void *this_fn, void *call_site);
-  llvm::PointerType *PointerTy = Int8PtrTy;
-  llvm::Type *ProfileFuncArgs[] = { PointerTy, PointerTy };
-  llvm::FunctionType *FunctionTy =
-    llvm::FunctionType::get(VoidTy, ProfileFuncArgs, false);
-
-  llvm::Constant *F = CGM.CreateRuntimeFunction(FunctionTy, Fn);
-  llvm::CallInst *CallSite = Builder.CreateCall(
-    CGM.getIntrinsic(llvm::Intrinsic::returnaddress),
-    llvm::ConstantInt::get(Int32Ty, 0),
-    "callsite");
-
-  llvm::Value *args[] = {
-    llvm::ConstantExpr::getBitCast(CurFn, PointerTy),
-    CallSite
-  };
-
-  EmitNounwindRuntimeCall(F, args);
-}
-
 static void removeImageAccessQualifier(std::string& TyName) {
   std::string ReadOnlyQual("__read_only");
   std::string::size_type ReadOnlyPos = TyName.find(ReadOnlyQual);
@@ -1001,8 +981,12 @@ void CodeGenFunction::StartFunction(GlobalDecl GD,
     DI->EmitFunctionStart(GD, Loc, StartLoc, FnType, CurFn, Builder);
   }
 
-  if (ShouldInstrumentFunction())
-    EmitFunctionInstrumentation("__cyg_profile_func_enter");
+  if (ShouldInstrumentFunction()) {
+    Fn->addFnAttr(!CGM.getCodeGenOpts().InstrumentFunctionsAfterInlining
+                      ? "instrument-function-entry"
+                      : "instrument-function-entry-inlined",
+                  "__cyg_profile_func_enter");
+  }
 
   // Since emitting the mcount call here impacts optimizations such as function
   // inlining, we just add an attribute to insert a mcount call in backend.
@@ -1012,8 +996,10 @@ void CodeGenFunction::StartFunction(GlobalDecl GD,
     if (CGM.getCodeGenOpts().CallFEntry)
       Fn->addFnAttr("fentry-call", "true");
     else {
-      if (!CurFuncDecl || !CurFuncDecl->hasAttr<NoInstrumentFunctionAttr>())
-        Fn->addFnAttr("counting-function", getTarget().getMCountName());
+      if (!CurFuncDecl || !CurFuncDecl->hasAttr<NoInstrumentFunctionAttr>()) {
+        Fn->addFnAttr("instrument-function-entry-inlined",
+                      getTarget().getMCountName());
+      }
     }
   }
 

clang/lib/CodeGen/CodeGenFunction.h

@@ -1784,11 +1784,6 @@ public:
   /// instrumented with XRay nop sleds.
   bool ShouldXRayInstrumentFunction() const;
 
-  /// EmitFunctionInstrumentation - Emit LLVM code to call the specified
-  /// instrumentation function with the current function and the call site, if
-  /// function instrumentation is enabled.
-  void EmitFunctionInstrumentation(const char *Fn);
-
   /// Encode an address into a form suitable for use in a function prologue.
   llvm::Constant *EncodeAddrForUseInPrologue(llvm::Function *F,
                                              llvm::Constant *Addr);

clang/lib/Driver/ToolChains/Clang.cpp

@@ -3545,7 +3545,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
                     options::OPT_fno_unique_section_names, true))
     CmdArgs.push_back("-fno-unique-section-names");
 
-  Args.AddAllArgs(CmdArgs, options::OPT_finstrument_functions);
+  Args.AddLastArg(CmdArgs, options::OPT_finstrument_functions,
+                  options::OPT_finstrument_functions_after_inlining);
 
   addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs);
 

clang/lib/Frontend/CompilerInvocation.cpp

@@ -777,6 +777,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
 
   Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
   Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
+  Opts.InstrumentFunctionsAfterInlining =
+      Args.hasArg(OPT_finstrument_functions_after_inlining);
   Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument);
   Opts.XRayInstructionThreshold =
       getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);

clang/test/CodeGen/instrument-functions.c

@@ -1,18 +1,21 @@
-// RUN: %clang_cc1 -S -debug-info-kind=standalone -emit-llvm -o - %s -finstrument-functions | FileCheck %s
+// RUN: %clang_cc1 -S -debug-info-kind=standalone -emit-llvm -o - %s -finstrument-functions -disable-llvm-passes | FileCheck %s
 
-// CHECK: @test1
 int test1(int x) {
-// CHECK: call void @__cyg_profile_func_enter({{.*}}, !dbg
-// CHECK: call void @__cyg_profile_func_exit({{.*}}, !dbg
+// CHECK: define i32 @test1(i32 %x) #[[ATTR1:[0-9]+]]
 // CHECK: ret
   return x;
 }
 
-// CHECK: @test2
 int test2(int) __attribute__((no_instrument_function));
 int test2(int x) {
-// CHECK-NOT: __cyg_profile_func_enter
-// CHECK-NOT: __cyg_profile_func_exit
+// CHECK: define i32 @test2(i32 %x) #[[ATTR2:[0-9]+]]
 // CHECK: ret
   return x;
 }
+
+// CHECK: attributes #[[ATTR1]] =
+// CHECK-SAME: "instrument-function-entry"="__cyg_profile_func_enter"
+// CHECK-SAME: "instrument-function-exit"="__cyg_profile_func_exit"
+
+// CHECK: attributes #[[ATTR2]] =
+// CHECK-NOT: "instrument-function-entry"

clang/test/CodeGen/mcount.c

@@ -35,9 +35,9 @@ int main(void) {
   return no_instrument();
 }
 
-// CHECK: attributes #0 = { {{.*}}"counting-function"="mcount"{{.*}} }
+// CHECK: attributes #0 = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
 // CHECK: attributes #1 = { {{.*}} }
-// CHECK-PREFIXED: attributes #0 = { {{.*}}"counting-function"="_mcount"{{.*}} }
+// CHECK-PREFIXED: attributes #0 = { {{.*}}"instrument-function-entry-inlined"="_mcount"{{.*}} }
 // CHECK-PREFIXED: attributes #1 = { {{.*}} }
-// NO-MCOUNT-NOT: attributes #{{[0-9]}} = { {{.*}}"counting-function"={{.*}} }
-// NO-MCOUNT1-NOT: attributes #1 = { {{.*}}"counting-function"={{.*}} }
+// NO-MCOUNT-NOT: attributes #{{[0-9]}} = { {{.*}}"instrument-function-entry-inlined"={{.*}} }
+// NO-MCOUNT1-NOT: attributes #1 = { {{.*}}"instrument-function-entry-inlined"={{.*}} }

clang/test/CodeGen/x86_64-instrument-functions.c

@@ -0,0 +1,38 @@
+// REQUIRES: x86-registered-target
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -S -finstrument-functions -O2 -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -S -finstrument-functions-after-inlining -O2 -o - %s | FileCheck -check-prefix=NOINLINE %s
+
+// It's not so nice having asm tests in Clang, but we need to check that we set
+// up the pipeline correctly in order to have the instrumentation inserted.
+
+int leaf(int x) {
+  return x;
+// CHECK-LABEL: leaf:
+// CHECK: callq __cyg_profile_func_enter
+// CHECK-NOT: cyg_profile
+// CHECK: callq __cyg_profile_func_exit
+// CHECK-NOT: cyg_profile
+// CHECK: ret
+}
+
+int root(int x) {
+  return leaf(x);
+// CHECK-LABEL: root:
+// CHECK: callq __cyg_profile_func_enter
+// CHECK-NOT: cyg_profile
+
+// Inlined from leaf():
+// CHECK: callq __cyg_profile_func_enter
+// CHECK-NOT: cyg_profile
+// CHECK: callq __cyg_profile_func_exit
+
+// CHECK-NOT: cyg_profile
+// CHECK: callq __cyg_profile_func_exit
+// CHECK: ret
+
+// NOINLINE-LABEL: root:
+// NOINLINE: callq __cyg_profile_func_enter
+// NOINLINE-NOT: cyg_profile
+// NOINLINE: callq __cyg_profile_func_exit
+// NOINLINE: ret
+}

clang/test/CodeGenCXX/instrument-functions.cpp

@@ -1,22 +1,26 @@
-// RUN: %clang_cc1 -S -emit-llvm -triple %itanium_abi_triple -o - %s -finstrument-functions | FileCheck %s
+// RUN: %clang_cc1 -S -emit-llvm -triple %itanium_abi_triple -o - %s -finstrument-functions -disable-llvm-passes | FileCheck %s
 
-// CHECK: @_Z5test1i
 int test1(int x) {
-// CHECK: __cyg_profile_func_enter
-// CHECK: __cyg_profile_func_exit
+// CHECK: define i32 @_Z5test1i(i32 %x) #[[ATTR1:[0-9]+]]
 // CHECK: ret
   return x;
 }
 
-// CHECK: @_Z5test2i
 int test2(int) __attribute__((no_instrument_function));
 int test2(int x) {
-// CHECK-NOT: __cyg_profile_func_enter
-// CHECK-NOT: __cyg_profile_func_exit
+// CHECK: define i32 @_Z5test2i(i32 %x) #[[ATTR2:[0-9]+]]
 // CHECK: ret
   return x;
 }
 
+// CHECK: attributes #[[ATTR1]] =
+// CHECK-SAME: "instrument-function-entry"="__cyg_profile_func_enter"
+// CHECK-SAME: "instrument-function-exit"="__cyg_profile_func_exit"
+
+// CHECK: attributes #[[ATTR2]] =
+// CHECK-NOT: "instrument-function-entry"
+
+
 // This test case previously crashed code generation.  It exists solely
 // to test -finstrument-function does not crash codegen for this trivial
 // case.

clang/test/Frontend/gnu-mcount.c

@@ -43,36 +43,36 @@ int f() {
 
 // CHECK-LABEL: f
 // TODO: add profiling support for arm-baremetal
-// CHECK-ARM-BAREMETAL-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01mcount"{{.*}} }
-// CHECK-ARM-BAREMETAL-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-BAREMETAL-EABI: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM64-BAREMETAL-EABI-MEABI-GNU: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01_mcount"{{.*}} }
-// CHECK-ARM-IOS-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="_mcount"{{.*}} }
-// CHECK-ARM-IOS-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM-EABI: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01mcount"{{.*}} }
-// CHECK-ARM-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-EABI: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM64-EABI-MEABI-GNU: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01_mcount"{{.*}} }
-// CHECK-ARM64-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-EABI-LINUX: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01_mcount"{{.*}} }
-// CHECK-ARM-EABI-FREEBSD: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="__mcount"{{.*}} }
-// CHECK-ARM-EABI-FREEBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-EABI-FREEBSD: attributes #{{[0-9]+}} = { {{.*}}"counting-function"=".mcount"{{.*}} }
-// CHECK-ARM64-EABI-FREEBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM-EABI-NETBSD: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="_mcount"{{.*}} }
-// CHECK-ARM-EABI-NETBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM-EABI-OPENBSD: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="__mcount"{{.*}} }
-// CHECK-ARM-EABI-OPENBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-EABI-OPENBSD: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="__mcount"{{.*}} }
-// CHECK-ARM64-EABI-OPENBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM-EABI-MEABI-GNU-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM-EABI-MEABI-GNU: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM-EABI-RTEMS: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM-EABI-RTEMS-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-EABI-RTEMS: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM64-EABI-RTEMS-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM-EABI-CLOUDABI: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM-EABI-CLOUDABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
-// CHECK-ARM64-EABI-CLOUDABI: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="mcount"{{.*}} }
-// CHECK-ARM64-EABI-CLOUDABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-BAREMETAL-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01mcount"{{.*}} }
+// CHECK-ARM-BAREMETAL-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-BAREMETAL-EABI: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM64-BAREMETAL-EABI-MEABI-GNU: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01_mcount"{{.*}} }
+// CHECK-ARM-IOS-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="_mcount"{{.*}} }
+// CHECK-ARM-IOS-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-EABI: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01mcount"{{.*}} }
+// CHECK-ARM-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-EABI: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM64-EABI-MEABI-GNU: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01_mcount"{{.*}} }
+// CHECK-ARM64-EABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-EABI-LINUX: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01_mcount"{{.*}} }
+// CHECK-ARM-EABI-FREEBSD: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="__mcount"{{.*}} }
+// CHECK-ARM-EABI-FREEBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-EABI-FREEBSD: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"=".mcount"{{.*}} }
+// CHECK-ARM64-EABI-FREEBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-EABI-NETBSD: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="_mcount"{{.*}} }
+// CHECK-ARM-EABI-NETBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-EABI-OPENBSD: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="__mcount"{{.*}} }
+// CHECK-ARM-EABI-OPENBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-EABI-OPENBSD: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="__mcount"{{.*}} }
+// CHECK-ARM64-EABI-OPENBSD-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-EABI-MEABI-GNU-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM-EABI-MEABI-GNU: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-EABI-RTEMS: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM-EABI-RTEMS-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-EABI-RTEMS: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM64-EABI-RTEMS-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM-EABI-CLOUDABI: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM-EABI-CLOUDABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }
+// CHECK-ARM64-EABI-CLOUDABI: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="mcount"{{.*}} }
+// CHECK-ARM64-EABI-CLOUDABI-NOT: attributes #{{[0-9]+}} = { {{.*}}"instrument-function-entry-inlined"="\01__gnu_mcount_nc"{{.*}} }