honggyu.kim updated the summary for this revision.
honggyu.kim updated this revision to Diff 66072.
https://reviews.llvm.org/D22666
Files:
lib/CodeGen/CodeGenFunction.cpp
Index: lib/CodeGen/CodeGenFunction.cpp
===================================================================
--- lib/CodeGen/CodeGenFunction.cpp
+++ lib/CodeGen/CodeGenFunction.cpp
@@ -428,14 +428,6 @@
EmitNounwindRuntimeCall(F, args);
}
-void CodeGenFunction::EmitMCountInstrumentation() {
- llvm::FunctionType *FTy = llvm::FunctionType::get(VoidTy, false);
-
- llvm::Constant *MCountFn =
- CGM.CreateRuntimeFunction(FTy, getTarget().getMCountName());
- EmitNounwindRuntimeCall(MCountFn);
-}
-
// OpenCL v1.2 s5.6.4.6 allows the compiler to store kernel argument
// information in the program executable. The argument information stored
// includes the argument name, its type, the address and access qualifiers
used.
@@ -794,8 +786,12 @@
if (ShouldInstrumentFunction())
EmitFunctionInstrumentation("__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.
+ // The attribute "counting-function" is set to mcount function name which is
+ // architecture dependent.
if (CGM.getCodeGenOpts().InstrumentForProfiling)
- EmitMCountInstrumentation();
+ Fn->addFnAttr("counting-function", getTarget().getMCountName());
if (RetTy->isVoidType()) {
// Void type; nothing to return.
Index: lib/CodeGen/CodeGenFunction.cpp
===================================================================
--- lib/CodeGen/CodeGenFunction.cpp
+++ lib/CodeGen/CodeGenFunction.cpp
@@ -428,14 +428,6 @@
EmitNounwindRuntimeCall(F, args);
}
-void CodeGenFunction::EmitMCountInstrumentation() {
- llvm::FunctionType *FTy = llvm::FunctionType::get(VoidTy, false);
-
- llvm::Constant *MCountFn =
- CGM.CreateRuntimeFunction(FTy, getTarget().getMCountName());
- EmitNounwindRuntimeCall(MCountFn);
-}
-
// OpenCL v1.2 s5.6.4.6 allows the compiler to store kernel argument
// information in the program executable. The argument information stored
// includes the argument name, its type, the address and access qualifiers used.
@@ -794,8 +786,12 @@
if (ShouldInstrumentFunction())
EmitFunctionInstrumentation("__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.
+ // The attribute "counting-function" is set to mcount function name which is
+ // architecture dependent.
if (CGM.getCodeGenOpts().InstrumentForProfiling)
- EmitMCountInstrumentation();
+ Fn->addFnAttr("counting-function", getTarget().getMCountName());
if (RetTy->isVoidType()) {
// Void type; nothing to return.
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