<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On Apr 10, 2014, at 4:33 PM, Eric Christopher <<a href="mailto:echristo@gmail.com">echristo@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><p dir="ltr">Uh did you look at the code that added this stuff explicitly?</p></blockquote><div>Which stuff specifically are you referring to?</div><div><br></div><div>-- adrian</div><br><blockquote type="cite">
<div class="gmail_quote">On Apr 10, 2014 4:31 PM, "Adrian Prantl" <<a href="mailto:aprantl@apple.com">aprantl@apple.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Author: adrian<br>
Date: Thu Apr 10 18:21:53 2014<br>
New Revision: 205999<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=205999&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=205999&view=rev</a><br>
Log:<br>
Debug info: (Bugfix) Make sure artificial functions like _GLOBAL__I_a<br>
are not associated with any source lines.<br>
<br>
Previously, if the Location of a Decl was empty, EmitFunctionStart would<br>
just keep using CurLoc, which would sometimes be correct (e.g., thunks)<br>
but in other cases would just point to a hilariously random location.<br>
<br>
This patch fixes this by completely eliminating all uses of CurLoc from<br>
EmitFunctionStart and rather have clients explicitly pass in a<br>
SourceLocation for the function header and the function body.<br>
<br>
<a href="rdar://problem/14985269">rdar://problem/14985269</a><br>
<br>
Added:<br>
cfe/trunk/test/CodeGenCXX/globalinit-loc.cpp<br>
Modified:<br>
cfe/trunk/lib/CodeGen/CGBlocks.cpp<br>
cfe/trunk/lib/CodeGen/CGDebugInfo.cpp<br>
cfe/trunk/lib/CodeGen/CGDebugInfo.h<br>
cfe/trunk/lib/CodeGen/CGDeclCXX.cpp<br>
cfe/trunk/lib/CodeGen/CGObjC.cpp<br>
cfe/trunk/lib/CodeGen/CGStmt.cpp<br>
cfe/trunk/lib/CodeGen/CGVTables.cpp<br>
cfe/trunk/lib/CodeGen/CodeGenFunction.cpp<br>
cfe/trunk/lib/CodeGen/CodeGenFunction.h<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGBlocks.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBlocks.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBlocks.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGBlocks.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGBlocks.cpp Thu Apr 10 18:21:53 2014<br>
@@ -1135,6 +1135,7 @@ CodeGenFunction::GenerateBlockFunction(G<br>
<br>
// Begin generating the function.<br>
StartFunction(blockDecl, fnType->getReturnType(), fn, fnInfo, args,<br>
+ blockDecl->getLocation(),<br>
blockInfo.getBlockExpr()->getBody()->getLocStart());<br>
<br>
// Okay. Undo some of what StartFunction did.<br>
@@ -1306,7 +1307,7 @@ CodeGenFunction::GenerateCopyHelperFunct<br>
false);<br>
// Create a scope with an artificial location for the body of this function.<br>
ArtificialLocation AL(*this, Builder);<br>
- StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation());<br>
+ StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation(), SourceLocation());<br>
AL.Emit();<br>
<br>
llvm::Type *structPtrTy = blockInfo.StructureType->getPointerTo();<br>
@@ -1476,7 +1477,7 @@ CodeGenFunction::GenerateDestroyHelperFu<br>
false, false);<br>
// Create a scope with an artificial location for the body of this function.<br>
ArtificialLocation AL(*this, Builder);<br>
- StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation());<br>
+ StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation(), SourceLocation());<br>
AL.Emit();<br>
<br>
llvm::Type *structPtrTy = blockInfo.StructureType->getPointerTo();<br>
@@ -1765,7 +1766,7 @@ generateByrefCopyHelper(CodeGenFunction<br>
SC_Static,<br>
false, false);<br>
<br>
- CGF.StartFunction(FD, R, Fn, FI, args, SourceLocation());<br>
+ CGF.StartFunction(FD, R, Fn, FI, args, SourceLocation(), SourceLocation());<br>
<br>
if (byrefInfo.needsCopy()) {<br>
llvm::Type *byrefPtrType = byrefType.getPointerTo(0);<br>
@@ -1834,7 +1835,7 @@ generateByrefDisposeHelper(CodeGenFuncti<br>
SourceLocation(), II, R, 0,<br>
SC_Static,<br>
false, false);<br>
- CGF.StartFunction(FD, R, Fn, FI, args, SourceLocation());<br>
+ CGF.StartFunction(FD, R, Fn, FI, args, SourceLocation(), SourceLocation());<br>
<br>
if (byrefInfo.needsDispose()) {<br>
llvm::Value *V = CGF.GetAddrOfLocalVar(&src);<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Thu Apr 10 18:21:53 2014<br>
@@ -2504,7 +2504,10 @@ llvm::DICompositeType CGDebugInfo::getOr<br>
}<br>
<br>
/// EmitFunctionStart - Constructs the debug code for entering a function.<br>
-void CGDebugInfo::EmitFunctionStart(GlobalDecl GD, QualType FnType,<br>
+void CGDebugInfo::EmitFunctionStart(GlobalDecl GD,<br>
+ SourceLocation Loc,<br>
+ SourceLocation ScopeLoc,<br>
+ QualType FnType,<br>
llvm::Function *Fn,<br>
CGBuilderTy &Builder) {<br>
<br>
@@ -2514,24 +2517,7 @@ void CGDebugInfo::EmitFunctionStart(Glob<br>
FnBeginRegionCount.push_back(LexicalBlockStack.size());<br>
<br>
const Decl *D = GD.getDecl();<br>
-<br>
- // Use the location of the start of the function to determine where<br>
- // the function definition is located. By default use the location<br>
- // of the declaration as the location for the subprogram. A function<br>
- // may lack a declaration in the source code if it is created by code<br>
- // gen. (examples: _GLOBAL__I_a, __cxx_global_array_dtor, thunk).<br>
bool HasDecl = (D != 0);<br>
- SourceLocation Loc;<br>
- if (HasDecl) {<br>
- Loc = D->getLocation();<br>
-<br>
- // If this is a function specialization then use the pattern body<br>
- // as the location for the function.<br>
- if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D))<br>
- if (const FunctionDecl *SpecDecl = FD->getTemplateInstantiationPattern())<br>
- if (SpecDecl->hasBody(SpecDecl))<br>
- Loc = SpecDecl->getLocation();<br>
- }<br>
<br>
unsigned Flags = 0;<br>
llvm::DIFile Unit = getOrCreateFile(Loc);<br>
@@ -2591,9 +2577,14 @@ void CGDebugInfo::EmitFunctionStart(Glob<br>
if (!Name.empty() && Name[0] == '\01')<br>
Name = Name.substr(1);<br>
<br>
- unsigned LineNo = getLineNumber(Loc);<br>
- if (!HasDecl || D->isImplicit())<br>
+ if (!HasDecl || D->isImplicit()) {<br>
Flags |= llvm::DIDescriptor::FlagArtificial;<br>
+ // Artificial functions without a location should not silently reuse CurLoc.<br>
+ if (Loc.isInvalid())<br>
+ CurLoc = SourceLocation();<br>
+ }<br>
+ unsigned LineNo = getLineNumber(Loc);<br>
+ unsigned ScopeLine = getLineNumber(ScopeLoc);<br>
<br>
// FIXME: The function declaration we're constructing here is mostly reusing<br>
// declarations from CXXMethodDecl and not constructing new ones for arbitrary<br>
@@ -2604,7 +2595,7 @@ void CGDebugInfo::EmitFunctionStart(Glob<br>
DBuilder.createFunction(FDContext, Name, LinkageName, Unit, LineNo,<br>
getOrCreateFunctionType(D, FnType, Unit),<br>
Fn->hasInternalLinkage(), true /*definition*/,<br>
- getLineNumber(CurLoc), Flags,<br>
+ ScopeLine, Flags,<br>
CGM.getLangOpts().Optimize, Fn, TParamsArray,<br>
getFunctionDeclaration(D));<br>
if (HasDecl)<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.h?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.h?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGDebugInfo.h (original)<br>
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.h Thu Apr 10 18:21:53 2014<br>
@@ -220,8 +220,12 @@ public:<br>
<br>
/// EmitFunctionStart - Emit a call to llvm.dbg.function.start to indicate<br>
/// start of a new function.<br>
- void EmitFunctionStart(GlobalDecl GD, QualType FnType,<br>
- llvm::Function *Fn, CGBuilderTy &Builder);<br>
+ /// \param Loc The location of the function header.<br>
+ /// \param ScopeLoc The location of the function body.<br>
+ void EmitFunctionStart(GlobalDecl GD,<br>
+ SourceLocation Loc, SourceLocation ScopeLoc,<br>
+ QualType FnType, llvm::Function *Fn,<br>
+ CGBuilderTy &Builder);<br>
<br>
/// EmitFunctionEnd - Constructs the debug code for exiting a function.<br>
void EmitFunctionEnd(CGBuilderTy &Builder);<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGDeclCXX.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDeclCXX.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDeclCXX.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGDeclCXX.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGDeclCXX.cpp Thu Apr 10 18:21:53 2014<br>
@@ -179,7 +179,7 @@ static llvm::Constant *createAtExitStub(<br>
<br>
CGF.StartFunction(&VD, CGM.getContext().VoidTy, fn,<br>
CGM.getTypes().arrangeNullaryFunction(), FunctionArgList(),<br>
- SourceLocation());<br>
+ SourceLocation(), SourceLocation());<br>
<br>
llvm::CallInst *call = CGF.Builder.CreateCall(dtor, addr);<br>
<br>
@@ -412,7 +412,8 @@ void CodeGenFunction::GenerateCXXGlobalV<br>
<br>
StartFunction(GlobalDecl(D), getContext().VoidTy, Fn,<br>
getTypes().arrangeNullaryFunction(),<br>
- FunctionArgList(), D->getInit()->getExprLoc());<br>
+ FunctionArgList(), D->getLocation(),<br>
+ D->getInit()->getExprLoc());<br>
<br>
// Use guarded initialization if the global variable is weak. This<br>
// occurs for, e.g., instantiated static data members and<br>
@@ -433,7 +434,7 @@ CodeGenFunction::GenerateCXXGlobalInitFu<br>
llvm::GlobalVariable *Guard) {<br>
StartFunction(GlobalDecl(), getContext().VoidTy, Fn,<br>
getTypes().arrangeNullaryFunction(),<br>
- FunctionArgList(), SourceLocation());<br>
+ FunctionArgList(), SourceLocation(), SourceLocation());<br>
<br>
llvm::BasicBlock *ExitBlock = 0;<br>
if (Guard) {<br>
@@ -479,7 +480,7 @@ void CodeGenFunction::GenerateCXXGlobalD<br>
&DtorsAndObjects) {<br>
StartFunction(GlobalDecl(), getContext().VoidTy, Fn,<br>
getTypes().arrangeNullaryFunction(),<br>
- FunctionArgList(), SourceLocation());<br>
+ FunctionArgList(), SourceLocation(), SourceLocation());<br>
<br>
// Emit the dtors, in reverse order from construction.<br>
for (unsigned i = 0, e = DtorsAndObjects.size(); i != e; ++i) {<br>
@@ -509,7 +510,8 @@ llvm::Function *CodeGenFunction::generat<br>
llvm::Function *fn =<br>
CreateGlobalInitOrDestructFunction(CGM, FTy, "__cxx_global_array_dtor");<br>
<br>
- StartFunction(VD, getContext().VoidTy, fn, FI, args, SourceLocation());<br>
+ StartFunction(VD, getContext().VoidTy, fn, FI, args,<br>
+ SourceLocation(), SourceLocation());<br>
<br>
emitDestroy(addr, type, destroyer, useEHCleanupForArray);<br>
<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGObjC.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGObjC.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGObjC.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGObjC.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGObjC.cpp Thu Apr 10 18:21:53 2014<br>
@@ -481,7 +481,8 @@ void CodeGenFunction::StartObjCMethod(co<br>
<br>
CurGD = OMD;<br>
<br>
- StartFunction(OMD, OMD->getReturnType(), Fn, FI, args, StartLoc);<br>
+ StartFunction(OMD, OMD->getReturnType(), Fn, FI, args,<br>
+ OMD->getLocation(), StartLoc);<br>
<br>
// In ARC, certain methods get an extra cleanup.<br>
if (CGM.getLangOpts().ObjCAutoRefCount &&<br>
@@ -2915,7 +2916,7 @@ CodeGenFunction::GenerateObjCAtomicSette<br>
"__assign_helper_atomic_property_",<br>
&CGM.getModule());<br>
<br>
- StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation());<br>
+ StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation(), SourceLocation());<br>
<br>
DeclRefExpr DstExpr(&dstDecl, false, DestTy,<br>
VK_RValue, SourceLocation());<br>
@@ -2993,7 +2994,7 @@ CodeGenFunction::GenerateObjCAtomicGette<br>
llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage,<br>
"__copy_helper_atomic_property_", &CGM.getModule());<br>
<br>
- StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation());<br>
+ StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation(), SourceLocation());<br>
<br>
DeclRefExpr SrcExpr(&srcDecl, false, SrcTy,<br>
VK_RValue, SourceLocation());<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGStmt.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGStmt.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGStmt.cpp Thu Apr 10 18:21:53 2014<br>
@@ -1944,7 +1944,9 @@ CodeGenFunction::GenerateCapturedStmtFun<br>
CGM.SetInternalFunctionAttributes(CD, F, FuncInfo);<br>
<br>
// Generate the function.<br>
- StartFunction(CD, Ctx.VoidTy, F, FuncInfo, Args, CD->getBody()->getLocStart());<br>
+ StartFunction(CD, Ctx.VoidTy, F, FuncInfo, Args,<br>
+ CD->getLocation(),<br>
+ CD->getBody()->getLocStart());<br>
<br>
// Set the context parameter in CapturedStmtInfo.<br>
llvm::Value *DeclPtr = LocalDeclMap[CD->getContextParam()];<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGVTables.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGVTables.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGVTables.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGVTables.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGVTables.cpp Thu Apr 10 18:21:53 2014<br>
@@ -217,7 +217,7 @@ void CodeGenFunction::StartThunk(llvm::F<br>
<br>
// Start defining the function.<br>
StartFunction(GlobalDecl(), ResultType, Fn, FnInfo, FunctionArgs,<br>
- SourceLocation());<br>
+ MD->getLocation(), SourceLocation());<br>
<br>
// Since we didn't pass a GlobalDecl to StartFunction, do this ourselves.<br>
CGM.getCXXABI().EmitInstanceFunctionProlog(*this);<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CodeGenFunction.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CodeGenFunction.cpp Thu Apr 10 18:21:53 2014<br>
@@ -503,6 +503,7 @@ void CodeGenFunction::StartFunction(Glob<br>
llvm::Function *Fn,<br>
const CGFunctionInfo &FnInfo,<br>
const FunctionArgList &Args,<br>
+ SourceLocation Loc,<br>
SourceLocation StartLoc) {<br>
const Decl *D = GD.getDecl();<br>
<br>
@@ -580,9 +581,7 @@ void CodeGenFunction::StartFunction(Glob<br>
QualType FnType =<br>
getContext().getFunctionType(RetTy, ArgTypes,<br>
FunctionProtoType::ExtProtoInfo());<br>
-<br>
- DI->setLocation(StartLoc);<br>
- DI->EmitFunctionStart(GD, FnType, CurFn, Builder);<br>
+ DI->EmitFunctionStart(GD, Loc, StartLoc, FnType, CurFn, Builder);<br>
}<br>
<br>
if (ShouldInstrumentFunction())<br>
@@ -759,8 +758,24 @@ void CodeGenFunction::GenerateCode(Globa<br>
if (Stmt *Body = FD->getBody()) BodyRange = Body->getSourceRange();<br>
CurEHLocation = BodyRange.getEnd();<br>
<br>
+ // Use the location of the start of the function to determine where<br>
+ // the function definition is located. By default use the location<br>
+ // of the declaration as the location for the subprogram. A function<br>
+ // may lack a declaration in the source code if it is created by code<br>
+ // gen. (examples: _GLOBAL__I_a, __cxx_global_array_dtor, thunk).<br>
+ SourceLocation Loc;<br>
+ if (FD) {<br>
+ Loc = FD->getLocation();<br>
+<br>
+ // If this is a function specialization then use the pattern body<br>
+ // as the location for the function.<br>
+ if (const FunctionDecl *SpecDecl = FD->getTemplateInstantiationPattern())<br>
+ if (SpecDecl->hasBody(SpecDecl))<br>
+ Loc = SpecDecl->getLocation();<br>
+ }<br>
+<br>
// Emit the standard function prologue.<br>
- StartFunction(GD, ResTy, Fn, FnInfo, Args, BodyRange.getBegin());<br>
+ StartFunction(GD, ResTy, Fn, FnInfo, Args, Loc, BodyRange.getBegin());<br>
<br>
// Generate the body of the function.<br>
PGO.assignRegionCounters(GD.getDecl(), CurFn);<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.h?rev=205999&r1=205998&r2=205999&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.h?rev=205999&r1=205998&r2=205999&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CodeGenFunction.h (original)<br>
+++ cfe/trunk/lib/CodeGen/CodeGenFunction.h Thu Apr 10 18:21:53 2014<br>
@@ -1140,11 +1140,15 @@ public:<br>
<br>
void GenerateCode(GlobalDecl GD, llvm::Function *Fn,<br>
const CGFunctionInfo &FnInfo);<br>
+ /// \brief Emit code for the start of a function.<br>
+ /// \param Loc The location to be associated with the function.<br>
+ /// \param StartLoc The location of the function body.<br>
void StartFunction(GlobalDecl GD,<br>
QualType RetTy,<br>
llvm::Function *Fn,<br>
const CGFunctionInfo &FnInfo,<br>
const FunctionArgList &Args,<br>
+ SourceLocation Loc,<br>
SourceLocation StartLoc);<br>
<br>
void EmitConstructorBody(FunctionArgList &Args);<br>
<br>
Added: cfe/trunk/test/CodeGenCXX/globalinit-loc.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/globalinit-loc.cpp?rev=205999&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/globalinit-loc.cpp?rev=205999&view=auto</a><br>
==============================================================================<br>
--- cfe/trunk/test/CodeGenCXX/globalinit-loc.cpp (added)<br>
+++ cfe/trunk/test/CodeGenCXX/globalinit-loc.cpp Thu Apr 10 18:21:53 2014<br>
@@ -0,0 +1,22 @@<br>
+// RUN: %clang_cc1 -emit-llvm -g %s -o - | FileCheck %s<br>
+// <a href="rdar://problem/14985269">rdar://problem/14985269</a>.<br>
+//<br>
+// Verify that the global init helper function does not get associated<br>
+// with any source location.<br>
+//<br>
+// CHECK: define internal void @_GLOBAL__I_a<br>
+// CHECK-NOT: !dbg<br>
+// CHECK: "_GLOBAL__I_a", i32 0, {{.*}}, i32 0} ; [ DW_TAG_subprogram ] [line 0] [local] [def]<br>
+# 99 "someheader.h"<br>
+class A {<br>
+public:<br>
+ A();<br>
+ int foo() { return 0; }<br>
+};<br>
+# 5 "main.cpp"<br>
+A a;<br>
+<br>
+int f() {<br>
+ return a.foo();<br>
+}<br>
+<br>
<br>
<br>
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