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Code Issues Projects Releases Wiki Activity

"Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87014 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-11-12 19:02:56 +00:00
parent 777bdad579
commit 70d75ca310
10 changed files with 16 additions and 456 deletions
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14
include/llvm/Analysis/DebugInfo.h
View File

@ -26,8 +26,6 @@
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ValueHandle.h"
#define ATTACH_DEBUG_INFO_TO_AN_INSN 1
namespace llvm {
class BasicBlock;
class Constant;
@ -710,18 +708,6 @@ bool getLocationInfo(const Value *V, std::string &DisplayName,
/// processSubprogram - Process DISubprogram.
void processSubprogram(DISubprogram SP);
/// processStopPoint - Process DbgStopPointInst.
void processStopPoint(DbgStopPointInst *SPI);
/// processFuncStart - Process DbgFuncStartInst.
void processFuncStart(DbgFuncStartInst *FSI);
/// processRegionStart - Process DbgRegionStart.
void processRegionStart(DbgRegionStartInst *DRS);
/// processRegionEnd - Process DbgRegionEnd.
void processRegionEnd(DbgRegionEndInst *DRE);
/// processDeclare - Process DbgDeclareInst.
void processDeclare(DbgDeclareInst *DDI);

10
include/llvm/CodeGen/DwarfWriter.h
View File

@ -87,19 +87,9 @@ public:
/// the source line list.
unsigned RecordSourceLine(unsigned Line, unsigned Col, MDNode *Scope);
/// RecordRegionStart - Indicate the start of a region.
unsigned RecordRegionStart(MDNode *N);
/// RecordRegionEnd - Indicate the end of a region.
unsigned RecordRegionEnd(MDNode *N);
/// getRecordSourceLineCount - Count source lines.
unsigned getRecordSourceLineCount();
/// RecordVariable - Indicate the declaration of a local variable.
///
void RecordVariable(MDNode *N, unsigned FrameIndex);
/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
/// be emitted.
bool ShouldEmitDwarfDebug() const;

2
include/llvm/CodeGen/MachineModuleInfo.h
View File

@ -44,8 +44,6 @@
#include "llvm/Pass.h"
#include "llvm/Metadata.h"
#define ATTACH_DEBUG_INFO_TO_AN_INSN 1
namespace llvm {
//===----------------------------------------------------------------------===//

39
lib/Analysis/DebugInfo.cpp
View File

@ -1069,29 +1069,18 @@ Instruction *DIFactory::InsertDeclare(Value *Storage, DIVariable D,
/// processModule - Process entire module and collect debug info.
void DebugInfoFinder::processModule(Module &M) {
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
MetadataContext &TheMetadata = M.getContext().getMetadata();
unsigned MDDbgKind = TheMetadata.getMDKind("dbg");
#endif
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
for (Function::iterator FI = (*I).begin(), FE = (*I).end(); FI != FE; ++FI)
for (BasicBlock::iterator BI = (*FI).begin(), BE = (*FI).end(); BI != BE;
++BI) {
if (DbgStopPointInst *SPI = dyn_cast<DbgStopPointInst>(BI))
processStopPoint(SPI);
else if (DbgFuncStartInst *FSI = dyn_cast<DbgFuncStartInst>(BI))
processFuncStart(FSI);
else if (DbgRegionStartInst *DRS = dyn_cast<DbgRegionStartInst>(BI))
processRegionStart(DRS);
else if (DbgRegionEndInst *DRE = dyn_cast<DbgRegionEndInst>(BI))
processRegionEnd(DRE);
else if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
processDeclare(DDI);
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
else if (MDDbgKind)
if (MDNode *L = TheMetadata.getMD(MDDbgKind, BI))
processLocation(DILocation(L));
#endif
}
NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");
@ -1168,30 +1157,6 @@ void DebugInfoFinder::processSubprogram(DISubprogram SP) {
processType(SP.getType());
}
/// processStopPoint - Process DbgStopPointInst.
void DebugInfoFinder::processStopPoint(DbgStopPointInst *SPI) {
MDNode *Context = dyn_cast<MDNode>(SPI->getContext());
addCompileUnit(DICompileUnit(Context));
}
/// processFuncStart - Process DbgFuncStartInst.
void DebugInfoFinder::processFuncStart(DbgFuncStartInst *FSI) {
MDNode *SP = dyn_cast<MDNode>(FSI->getSubprogram());
processSubprogram(DISubprogram(SP));
}
/// processRegionStart - Process DbgRegionStart.
void DebugInfoFinder::processRegionStart(DbgRegionStartInst *DRS) {
MDNode *SP = dyn_cast<MDNode>(DRS->getContext());
processSubprogram(DISubprogram(SP));
}
/// processRegionEnd - Process DbgRegionEnd.
void DebugInfoFinder::processRegionEnd(DbgRegionEndInst *DRE) {
MDNode *SP = dyn_cast<MDNode>(DRE->getContext());
processSubprogram(DISubprogram(SP));
}
/// processDeclare - Process DbgDeclareInst.
void DebugInfoFinder::processDeclare(DbgDeclareInst *DDI) {
DIVariable DV(cast<MDNode>(DDI->getVariable()));

234
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -1388,32 +1388,6 @@ DbgScope *DwarfDebug::getOrCreateAbstractScope(MDNode *N) {
return AScope;
}
/// getOrCreateScope - Returns the scope associated with the given descriptor.
/// FIXME - Remove this method.
DbgScope *DwarfDebug::getOrCreateScope(MDNode *N) {
DbgScope *&Slot = DbgScopeMap[N];
if (Slot) return Slot;
DbgScope *Parent = NULL;
DILexicalBlock Block(N);
if (!Block.isNull()) {
DIDescriptor ParentDesc = Block.getContext();
Parent =
ParentDesc.isNull() ? NULL : getOrCreateScope(ParentDesc.getNode());
}
Slot = new DbgScope(Parent, DIDescriptor(N));
if (Parent)
Parent->AddScope(Slot);
else
// First function is top level function.
CurrentFnDbgScope = Slot;
return Slot;
}
static DISubprogram getDISubprogram(MDNode *N) {
DIDescriptor D(N);
@ -1644,129 +1618,6 @@ DIE *DwarfDebug::ConstructScopeDIE(DbgScope *Scope) {
return ScopeDIE;
}
/// ConstructDbgScope - Construct the components of a scope.
/// FIXME: Remove
void DwarfDebug::ConstructDbgScope(DbgScope *ParentScope,
unsigned ParentStartID,
unsigned ParentEndID,
DIE *ParentDie, CompileUnit *Unit) {
// Add variables to scope.
SmallVector<DbgVariable *, 8> &Variables = ParentScope->getVariables();
for (unsigned i = 0, N = Variables.size(); i < N; ++i) {
DIE *VariableDie = CreateDbgScopeVariable(Variables[i], Unit);
if (VariableDie) ParentDie->AddChild(VariableDie);
}
// Add nested scopes.
SmallVector<DbgScope *, 4> &Scopes = ParentScope->getScopes();
for (unsigned j = 0, M = Scopes.size(); j < M; ++j) {
// Define the Scope debug information entry.
DbgScope *Scope = Scopes[j];
unsigned StartID = MMI->MappedLabel(Scope->getStartLabelID());
unsigned EndID = MMI->MappedLabel(Scope->getEndLabelID());
// Ignore empty scopes.
if (StartID == EndID && StartID != 0) continue;
// Do not ignore inlined scopes even if they don't have any variables or
// scopes.
if (Scope->getScopes().empty() && Scope->getVariables().empty())
continue;
if (StartID == ParentStartID && EndID == ParentEndID) {
// Just add stuff to the parent scope.
ConstructDbgScope(Scope, ParentStartID, ParentEndID, ParentDie, Unit);
} else {
DIE *ScopeDie = new DIE(dwarf::DW_TAG_lexical_block);
// Add the scope bounds.
if (StartID)
AddLabel(ScopeDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
DWLabel("label", StartID));
else
AddLabel(ScopeDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
DWLabel("func_begin", SubprogramCount));
if (EndID)
AddLabel(ScopeDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
DWLabel("label", EndID));
else
AddLabel(ScopeDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
DWLabel("func_end", SubprogramCount));
// Add the scope's contents.
ConstructDbgScope(Scope, StartID, EndID, ScopeDie, Unit);
ParentDie->AddChild(ScopeDie);
}
}
}
/// ConstructCurrentFnDbgScope - Construct the scope for the subprogram.
/// FIXME: Remove
void DwarfDebug::ConstructCurrentFnDbgScope(DbgScope *RootScope,
bool AbstractScope) {
// Exit if there is no root scope.
if (!RootScope) return;
DIDescriptor Desc = RootScope->getDesc();
if (Desc.isNull())
return;
// Get the subprogram debug information entry.
DISubprogram SPD(Desc.getNode());
// Get the subprogram die.
DIE *SPDie = ModuleCU->getDieMapSlotFor(SPD.getNode());
if (!SPDie) {
ConstructSubprogram(SPD.getNode());
SPDie = ModuleCU->getDieMapSlotFor(SPD.getNode());
}
assert(SPDie && "Missing subprogram descriptor");
if (!AbstractScope) {
// Add the function bounds.
AddLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
DWLabel("func_begin", SubprogramCount));
AddLabel(SPDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
DWLabel("func_end", SubprogramCount));
MachineLocation Location(RI->getFrameRegister(*MF));
AddAddress(SPDie, dwarf::DW_AT_frame_base, Location);
}
ConstructDbgScope(RootScope, 0, 0, SPDie, ModuleCU);
// If there are global variables at this scope then add their dies.
for (SmallVector<WeakVH, 4>::iterator SGI = ScopedGVs.begin(),
SGE = ScopedGVs.end(); SGI != SGE; ++SGI) {
MDNode *N = dyn_cast_or_null<MDNode>(*SGI);
if (!N) continue;
DIGlobalVariable GV(N);
if (GV.getContext().getNode() == RootScope->getDesc().getNode()) {
DIE *ScopedGVDie = CreateGlobalVariableDIE(ModuleCU, GV);
if (ScopedGVDie)
SPDie->AddChild(ScopedGVDie);
}
}
}
/// ConstructDefaultDbgScope - Construct a default scope for the subprogram.
/// FIXME: Remove
void DwarfDebug::ConstructDefaultDbgScope(MachineFunction *MF) {
StringMap<DIE*> &Globals = ModuleCU->getGlobals();
StringMap<DIE*>::iterator GI = Globals.find(MF->getFunction()->getName());
if (GI != Globals.end()) {
DIE *SPDie = GI->second;
// Add the function bounds.
AddLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
DWLabel("func_begin", SubprogramCount));
AddLabel(SPDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
DWLabel("func_end", SubprogramCount));
MachineLocation Location(RI->getFrameRegister(*MF));
AddAddress(SPDie, dwarf::DW_AT_frame_base, Location);
}
}
/// GetOrCreateSourceID - Look up the source id with the given directory and
/// source file names. If none currently exists, create a new id and insert it
/// in the SourceIds map. This can update DirectoryNames and SourceFileNames
@ -2241,11 +2092,9 @@ void DwarfDebug::BeginFunction(MachineFunction *MF) {
if (TimePassesIsEnabled)
DebugTimer->startTimer();
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
if (!ExtractScopeInformation(MF))
return;
CollectVariableInfo();
#endif
// Begin accumulating function debug information.
MMI->BeginFunction(MF);
@ -2255,7 +2104,6 @@ void DwarfDebug::BeginFunction(MachineFunction *MF) {
// Emit label for the implicitly defined dbg.stoppoint at the start of the
// function.
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
DebugLoc FDL = MF->getDefaultDebugLoc();
if (!FDL.isUnknown()) {
DebugLocTuple DLT = MF->getDebugLocTuple(FDL);
@ -2268,15 +2116,6 @@ void DwarfDebug::BeginFunction(MachineFunction *MF) {
Asm->printLabel(LabelID);
O << '\n';
}
#else
DebugLoc FDL = MF->getDefaultDebugLoc();
if (!FDL.isUnknown()) {
DebugLocTuple DLT = MF->getDebugLocTuple(FDL);
unsigned LabelID = RecordSourceLine(DLT.Line, DLT.Col, DLT.Scope);
Asm->printLabel(LabelID);
O << '\n';
}
#endif
if (TimePassesIsEnabled)
DebugTimer->stopTimer();
}
@ -2289,10 +2128,9 @@ void DwarfDebug::EndFunction(MachineFunction *MF) {
if (TimePassesIsEnabled)
DebugTimer->startTimer();
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
if (DbgScopeMap.empty())
return;
#endif
// Define end label for subprogram.
EmitLabel("func_end", SubprogramCount);
@ -2307,28 +2145,13 @@ void DwarfDebug::EndFunction(MachineFunction *MF) {
Lines.begin(), Lines.end());
}
#ifndef ATTACH_DEBUG_INFO_TO_AN_INSN
// Construct scopes for subprogram.
if (CurrentFnDbgScope)
ConstructCurrentFnDbgScope(CurrentFnDbgScope);
else
// FIXME: This is wrong. We are essentially getting past a problem with
// debug information not being able to handle unreachable blocks that have
// debug information in them. In particular, those unreachable blocks that
// have "region end" info in them. That situation results in the "root
// scope" not being created. If that's the case, then emit a "default"
// scope, i.e., one that encompasses the whole function. This isn't
// desirable. And a better way of handling this (and all of the debugging
// information) needs to be explored.
ConstructDefaultDbgScope(MF);
#else
// Construct abstract scopes.
for (SmallVector<DbgScope *, 4>::iterator AI = AbstractScopesList.begin(),
AE = AbstractScopesList.end(); AI != AE; ++AI)
ConstructScopeDIE(*AI);
ConstructScopeDIE(CurrentFnDbgScope);
#endif
DebugFrames.push_back(FunctionDebugFrameInfo(SubprogramCount,
MMI->getFrameMoves()));
@ -2406,59 +2229,6 @@ unsigned DwarfDebug::getOrCreateSourceID(const std::string &DirName,
return SrcId;
}
/// RecordRegionStart - Indicate the start of a region.
unsigned DwarfDebug::RecordRegionStart(MDNode *N) {
if (TimePassesIsEnabled)
DebugTimer->startTimer();
DbgScope *Scope = getOrCreateScope(N);
unsigned ID = MMI->NextLabelID();
if (!Scope->getStartLabelID()) Scope->setStartLabelID(ID);
if (TimePassesIsEnabled)
DebugTimer->stopTimer();
return ID;
}
/// RecordRegionEnd - Indicate the end of a region.
unsigned DwarfDebug::RecordRegionEnd(MDNode *N) {
if (TimePassesIsEnabled)
DebugTimer->startTimer();
DbgScope *Scope = getOrCreateScope(N);
unsigned ID = MMI->NextLabelID();
Scope->setEndLabelID(ID);
if (TimePassesIsEnabled)
DebugTimer->stopTimer();
return ID;
}
/// RecordVariable - Indicate the declaration of a local variable.
void DwarfDebug::RecordVariable(MDNode *N, unsigned FrameIndex) {
if (TimePassesIsEnabled)
DebugTimer->startTimer();
DIDescriptor Desc(N);
DbgScope *Scope = NULL;
if (Desc.getTag() == dwarf::DW_TAG_variable)
Scope = getOrCreateScope(DIGlobalVariable(N).getContext().getNode());
else {
MDNode *Context = DIVariable(N).getContext().getNode();
Scope = getOrCreateScope(Context);
}
assert(Scope && "Unable to find the variable's scope");
DbgVariable *DV = new DbgVariable(DIVariable(N), FrameIndex);
Scope->AddVariable(DV);
if (TimePassesIsEnabled)
DebugTimer->stopTimer();
}
//===----------------------------------------------------------------------===//
// Emit Methods
//===----------------------------------------------------------------------===//

20
lib/CodeGen/AsmPrinter/DwarfDebug.h
View File

@ -367,7 +367,7 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf {
/// createDbgScope - Create DbgScope for the scope.
void createDbgScope(MDNode *Scope, MDNode *InlinedAt);
DbgScope *getOrCreateScope(MDNode *N);
DbgScope *getOrCreateAbstractScope(MDNode *N);
/// findAbstractVariable - Find abstract variable associated with Var.
@ -386,15 +386,6 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf {
unsigned ParentStartID, unsigned ParentEndID,
DIE *ParentDie, CompileUnit *Unit);
/// ConstructCurrentFnDbgScope - Construct the scope for the subprogram.
///
void ConstructCurrentFnDbgScope(DbgScope *RootScope,
bool AbstractScope = false);
/// ConstructDefaultDbgScope - Construct a default scope for the subprogram.
///
void ConstructDefaultDbgScope(MachineFunction *MF);
/// EmitInitial - Emit initial Dwarf declarations. This is necessary for cc
/// tools to recognize the object file contains Dwarf information.
void EmitInitial();
@ -549,15 +540,6 @@ public:
unsigned getOrCreateSourceID(const std::string &DirName,
const std::string &FileName);
/// RecordRegionStart - Indicate the start of a region.
unsigned RecordRegionStart(MDNode *N);
/// RecordRegionEnd - Indicate the end of a region.
unsigned RecordRegionEnd(MDNode *N);
/// RecordVariable - Indicate the declaration of a local variable.
void RecordVariable(MDNode *N, unsigned FrameIndex);
/// ExtractScopeInformation - Scan machine instructions in this function
/// and collect DbgScopes. Return true, if atleast one scope was found.
bool ExtractScopeInformation(MachineFunction *MF);

16
lib/CodeGen/AsmPrinter/DwarfWriter.cpp
View File

@ -81,27 +81,11 @@ unsigned DwarfWriter::RecordSourceLine(unsigned Line, unsigned Col,
return DD->RecordSourceLine(Line, Col, Scope);
}
/// RecordRegionStart - Indicate the start of a region.
unsigned DwarfWriter::RecordRegionStart(MDNode *N) {
return DD->RecordRegionStart(N);
}
/// RecordRegionEnd - Indicate the end of a region.
unsigned DwarfWriter::RecordRegionEnd(MDNode *N) {
return DD->RecordRegionEnd(N);
}
/// getRecordSourceLineCount - Count source lines.
unsigned DwarfWriter::getRecordSourceLineCount() {
return DD->getRecordSourceLineCount();
}
/// RecordVariable - Indicate the declaration of a local variable.
///
void DwarfWriter::RecordVariable(MDNode *N, unsigned FrameIndex) {
DD->RecordVariable(N, FrameIndex);
}
/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
/// be emitted.
bool DwarfWriter::ShouldEmitDwarfDebug() const {

2
lib/CodeGen/MachineModuleInfo.cpp
View File

@ -76,9 +76,7 @@ void MachineModuleInfo::EndFunction() {
FilterEnds.clear();
CallsEHReturn = 0;
CallsUnwindInit = 0;
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
VariableDbgInfo.clear();
#endif
}
/// AnalyzeModule - Scan the module for global debug information.

49
lib/CodeGen/SelectionDAG/FastISel.cpp
View File

@ -325,48 +325,12 @@ bool FastISel::SelectCall(User *I) {
unsigned IID = F->getIntrinsicID();
switch (IID) {
default: break;
case Intrinsic::dbg_stoppoint: {
DbgStopPointInst *SPI = cast<DbgStopPointInst>(I);
if (isValidDebugInfoIntrinsic(*SPI, CodeGenOpt::None))
setCurDebugLoc(ExtractDebugLocation(*SPI, MF.getDebugLocInfo()));
case Intrinsic::dbg_stoppoint:
case Intrinsic::dbg_region_start:
case Intrinsic::dbg_region_end:
case Intrinsic::dbg_func_start:
// FIXME - Remove this instructions once the dust settles.
return true;
}
case Intrinsic::dbg_region_start: {
DbgRegionStartInst *RSI = cast<DbgRegionStartInst>(I);
if (isValidDebugInfoIntrinsic(*RSI, CodeGenOpt::None) && DW
&& DW->ShouldEmitDwarfDebug()) {
unsigned ID =
DW->RecordRegionStart(RSI->getContext());
const TargetInstrDesc &II = TII.get(TargetInstrInfo::DBG_LABEL);
BuildMI(MBB, DL, II).addImm(ID);
}
return true;
}
case Intrinsic::dbg_region_end: {
DbgRegionEndInst *REI = cast<DbgRegionEndInst>(I);
if (isValidDebugInfoIntrinsic(*REI, CodeGenOpt::None) && DW
&& DW->ShouldEmitDwarfDebug()) {
unsigned ID = 0;
DISubprogram Subprogram(REI->getContext());
const TargetInstrDesc &II = TII.get(TargetInstrInfo::DBG_LABEL);
ID = DW->RecordRegionEnd(REI->getContext());
BuildMI(MBB, DL, II).addImm(ID);
}
return true;
}
case Intrinsic::dbg_func_start: {
DbgFuncStartInst *FSI = cast<DbgFuncStartInst>(I);
if (!isValidDebugInfoIntrinsic(*FSI, CodeGenOpt::None) || !DW
|| !DW->ShouldEmitDwarfDebug())
return true;
// This is a beginning of a new function.
MF.setDefaultDebugLoc(ExtractDebugLocation(*FSI, MF.getDebugLocInfo()));
// llvm.dbg.func_start also defines beginning of function scope.
DW->RecordRegionStart(FSI->getSubprogram());
return true;
}
case Intrinsic::dbg_declare: {
DbgDeclareInst *DI = cast<DbgDeclareInst>(I);
if (!isValidDebugInfoIntrinsic(*DI, CodeGenOpt::None) || !DW
@ -390,9 +354,6 @@ bool FastISel::SelectCall(User *I) {
MDNode *Dbg = TheMetadata.getMD(MDDbgKind, DI);
MMI->setVariableDbgInfo(DI->getVariable(), FI, Dbg);
}
#ifndef ATTACH_DEBUG_INFO_TO_AN_INSN
DW->RecordVariable(DI->getVariable(), FI);
#endif
return true;
}
case Intrinsic::eh_exception: {

86
lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
View File

@ -335,25 +335,6 @@ void FunctionLoweringInfo::set(Function &fn, MachineFunction &mf,
DebugLoc DL;
for (BasicBlock::iterator
I = BB->begin(), E = BB->end(); I != E; ++I) {
if (CallInst *CI = dyn_cast<CallInst>(I)) {
if (Function *F = CI->getCalledFunction()) {
switch (F->getIntrinsicID()) {
default: break;
case Intrinsic::dbg_stoppoint: {
DbgStopPointInst *SPI = cast<DbgStopPointInst>(I);
if (isValidDebugInfoIntrinsic(*SPI, CodeGenOpt::Default))
DL = ExtractDebugLocation(*SPI, MF->getDebugLocInfo());
break;
}
case Intrinsic::dbg_func_start: {
DbgFuncStartInst *FSI = cast<DbgFuncStartInst>(I);
if (isValidDebugInfoIntrinsic(*FSI, CodeGenOpt::Default))
DL = ExtractDebugLocation(*FSI, MF->getDebugLocInfo());
break;
}
}
}
}
PN = dyn_cast<PHINode>(I);
if (!PN || PN->use_empty()) continue;
@ -3930,64 +3911,12 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
I.getOperand(1), 0, I.getOperand(2), 0));
return 0;
}
case Intrinsic::dbg_stoppoint: {
DbgStopPointInst &SPI = cast<DbgStopPointInst>(I);
if (isValidDebugInfoIntrinsic(SPI, CodeGenOpt::Default)) {
MachineFunction &MF = DAG.getMachineFunction();
DebugLoc Loc = ExtractDebugLocation(SPI, MF.getDebugLocInfo());
setCurDebugLoc(Loc);
if (OptLevel == CodeGenOpt::None)
DAG.setRoot(DAG.getDbgStopPoint(Loc, getRoot(),
SPI.getLine(),
SPI.getColumn(),
SPI.getContext()));
}
case Intrinsic::dbg_stoppoint:
case Intrinsic::dbg_region_start:
case Intrinsic::dbg_region_end:
case Intrinsic::dbg_func_start:
// FIXME - Remove this instructions once the dust settles.
return 0;
}
case Intrinsic::dbg_region_start: {
DwarfWriter *DW = DAG.getDwarfWriter();
DbgRegionStartInst &RSI = cast<DbgRegionStartInst>(I);
if (isValidDebugInfoIntrinsic(RSI, OptLevel) && DW
&& DW->ShouldEmitDwarfDebug()) {
unsigned LabelID =
DW->RecordRegionStart(RSI.getContext());
DAG.setRoot(DAG.getLabel(ISD::DBG_LABEL, getCurDebugLoc(),
getRoot(), LabelID));
}
return 0;
}
case Intrinsic::dbg_region_end: {
DwarfWriter *DW = DAG.getDwarfWriter();
DbgRegionEndInst &REI = cast<DbgRegionEndInst>(I);
if (!isValidDebugInfoIntrinsic(REI, OptLevel) || !DW
|| !DW->ShouldEmitDwarfDebug())
return 0;
DISubprogram Subprogram(REI.getContext());
unsigned LabelID =
DW->RecordRegionEnd(REI.getContext());
DAG.setRoot(DAG.getLabel(ISD::DBG_LABEL, getCurDebugLoc(),
getRoot(), LabelID));
return 0;
}
case Intrinsic::dbg_func_start: {
DwarfWriter *DW = DAG.getDwarfWriter();
DbgFuncStartInst &FSI = cast<DbgFuncStartInst>(I);
if (!isValidDebugInfoIntrinsic(FSI, CodeGenOpt::None))
return 0;
MachineFunction &MF = DAG.getMachineFunction();
MF.setDefaultDebugLoc(ExtractDebugLocation(FSI, MF.getDebugLocInfo()));
if (!DW || !DW->ShouldEmitDwarfDebug())
return 0;
// llvm.dbg.func_start also defines beginning of function scope.
DW->RecordRegionStart(FSI.getSubprogram());
return 0;
}
case Intrinsic::dbg_declare: {
if (OptLevel != CodeGenOpt::None)
// FIXME: Variable debug info is not supported here.
@ -4012,7 +3941,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
if (SI == FuncInfo.StaticAllocaMap.end())
return 0; // VLAs.
int FI = SI->second;
#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
MachineModuleInfo *MMI = DAG.getMachineModuleInfo();
if (MMI) {
MetadataContext &TheMetadata =
@ -4021,9 +3950,6 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
MDNode *Dbg = TheMetadata.getMD(MDDbgKind, &DI);
MMI->setVariableDbgInfo(Variable, FI, Dbg);
}
#else
DW->RecordVariable(Variable, FI);
#endif
return 0;
}
case Intrinsic::eh_exception: {