summaryrefslogtreecommitdiffstats
path: root/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
-rw-r--r--lib/CodeGen/AsmPrinter/DwarfDebug.cpp137
1 files changed, 71 insertions, 66 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index fb91d4f..9084456 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -302,7 +302,7 @@ DwarfDebug::DwarfDebug(raw_ostream &OS, AsmPrinter *A, const MCAsmInfo *T)
: DwarfPrinter(OS, A, T), ModuleCU(0),
AbbreviationsSet(InitAbbreviationsSetSize), Abbreviations(),
DIEBlocks(), SectionSourceLines(), didInitial(false), shouldEmit(false),
- CurrentFnDbgScope(0), PrevDILoc(0), DebugTimer(0) {
+ CurrentFnDbgScope(0), DebugTimer(0) {
NextStringPoolNumber = 0;
if (TimePassesIsEnabled)
DebugTimer = new Timer("Dwarf Debug Writer");
@@ -1932,13 +1932,14 @@ void DwarfDebug::endModule() {
/// findAbstractVariable - Find abstract variable, if any, associated with Var.
DbgVariable *DwarfDebug::findAbstractVariable(DIVariable &Var,
unsigned FrameIdx,
- DILocation &ScopeLoc) {
+ DebugLoc ScopeLoc) {
DbgVariable *AbsDbgVariable = AbstractVariables.lookup(Var.getNode());
if (AbsDbgVariable)
return AbsDbgVariable;
- DbgScope *Scope = AbstractScopes.lookup(ScopeLoc.getScope().getNode());
+ LLVMContext &Ctx = Var.getNode()->getContext();
+ DbgScope *Scope = AbstractScopes.lookup(ScopeLoc.getScope(Ctx));
if (!Scope)
return NULL;
@@ -1953,13 +1954,14 @@ DbgVariable *DwarfDebug::findAbstractVariable(DIVariable &Var,
/// FIXME : Refactor findAbstractVariable.
DbgVariable *DwarfDebug::findAbstractVariable(DIVariable &Var,
const MachineInstr *MI,
- DILocation &ScopeLoc) {
+ DebugLoc ScopeLoc) {
DbgVariable *AbsDbgVariable = AbstractVariables.lookup(Var.getNode());
if (AbsDbgVariable)
return AbsDbgVariable;
- DbgScope *Scope = AbstractScopes.lookup(ScopeLoc.getScope().getNode());
+ LLVMContext &Ctx = Var.getNode()->getContext();
+ DbgScope *Scope = AbstractScopes.lookup(ScopeLoc.getScope(Ctx));
if (!Scope)
return NULL;
@@ -1975,24 +1977,27 @@ DbgVariable *DwarfDebug::findAbstractVariable(DIVariable &Var,
void DwarfDebug::collectVariableInfo() {
if (!MMI) return;
+ const LLVMContext &Ctx = MF->getFunction()->getContext();
+
MachineModuleInfo::VariableDbgInfoMapTy &VMap = MMI->getVariableDbgInfo();
for (MachineModuleInfo::VariableDbgInfoMapTy::iterator VI = VMap.begin(),
VE = VMap.end(); VI != VE; ++VI) {
MDNode *Var = VI->first;
if (!Var) continue;
- DIVariable DV (Var);
- std::pair< unsigned, MDNode *> VP = VI->second;
- DILocation ScopeLoc(VP.second);
-
- DbgScope *Scope =
- ConcreteScopes.lookup(ScopeLoc.getOrigLocation().getNode());
- if (!Scope)
- Scope = DbgScopeMap.lookup(ScopeLoc.getScope().getNode());
+ DIVariable DV(Var);
+ const std::pair<unsigned, DebugLoc> &VP = VI->second;
+
+ DbgScope *Scope = 0;
+ if (MDNode *IA = VP.second.getInlinedAt(Ctx))
+ Scope = ConcreteScopes.lookup(IA);
+ if (Scope == 0)
+ Scope = DbgScopeMap.lookup(VP.second.getScope(Ctx));
+
// If variable scope is not found then skip this variable.
- if (!Scope)
+ if (Scope == 0)
continue;
- DbgVariable *AbsDbgVariable = findAbstractVariable(DV, VP.first, ScopeLoc);
+ DbgVariable *AbsDbgVariable = findAbstractVariable(DV, VP.first, VP.second);
DbgVariable *RegVar = new DbgVariable(DV, VP.first, AbsDbgVariable);
Scope->addVariable(RegVar);
}
@@ -2021,16 +2026,17 @@ void DwarfDebug::collectVariableInfo() {
DebugLoc DL = MInsn->getDebugLoc();
if (DL.isUnknown()) continue;
- DILocation ScopeLoc = MF->getDILocation(DL);
- DbgScope *Scope =
- ConcreteScopes.lookup(ScopeLoc.getOrigLocation().getNode());
- if (!Scope)
- Scope = DbgScopeMap.lookup(ScopeLoc.getScope().getNode());
+ DbgScope *Scope = 0;
+ if (MDNode *IA = DL.getInlinedAt(Ctx))
+ Scope = ConcreteScopes.lookup(IA);
+ if (Scope == 0)
+ Scope = DbgScopeMap.lookup(DL.getScope(Ctx));
+
// If variable scope is not found then skip this variable.
- if (!Scope)
+ if (Scope == 0)
continue;
- DbgVariable *AbsDbgVariable = findAbstractVariable(DV, MInsn, ScopeLoc);
+ DbgVariable *AbsDbgVariable = findAbstractVariable(DV, MInsn, DL);
DbgVariable *RegVar = new DbgVariable(DV, MInsn, AbsDbgVariable);
DbgValueStartMap[MInsn] = RegVar;
Scope->addVariable(RegVar);
@@ -2044,12 +2050,15 @@ void DwarfDebug::beginScope(const MachineInstr *MI) {
DebugLoc DL = MI->getDebugLoc();
if (DL.isUnknown())
return;
- DILocation DILoc = MF->getDILocation(DL);
- if (!DILoc.getScope().Verify())
- return;
// Check and update last known location info.
- if(DILoc.getNode() == PrevDILoc)
+ if (DL == PrevInstLoc)
+ return;
+
+ MDNode *Scope = DL.getScope(MF->getFunction()->getContext());
+
+ // FIXME: Should only verify each scope once!
+ if (!DIScope(Scope).Verify())
return;
// DBG_VALUE instruction establishes new value.
@@ -2057,10 +2066,8 @@ void DwarfDebug::beginScope(const MachineInstr *MI) {
DenseMap<const MachineInstr *, DbgVariable *>::iterator DI
= DbgValueStartMap.find(MI);
if (DI != DbgValueStartMap.end()) {
- MCSymbol *Label = recordSourceLine(DILoc.getLineNumber(),
- DILoc.getColumnNumber(),
- DILoc.getScope().getNode());
- PrevDILoc = DILoc.getNode();
+ MCSymbol *Label = recordSourceLine(DL.getLine(), DL.getCol(), Scope);
+ PrevInstLoc = DL;
DI->second->setDbgValueLabel(Label);
}
return;
@@ -2068,10 +2075,8 @@ void DwarfDebug::beginScope(const MachineInstr *MI) {
// Emit a label to indicate location change. This is used for line
// table even if this instruction does start a new scope.
- MCSymbol *Label = recordSourceLine(DILoc.getLineNumber(),
- DILoc.getColumnNumber(),
- DILoc.getScope().getNode());
- PrevDILoc = DILoc.getNode();
+ MCSymbol *Label = recordSourceLine(DL.getLine(), DL.getCol(), Scope);
+ PrevInstLoc = DL;
// update DbgScope if this instruction starts a new scope.
InsnToDbgScopeMapTy::iterator I = DbgScopeBeginMap.find(MI);
@@ -2094,15 +2099,12 @@ void DwarfDebug::endScope(const MachineInstr *MI) {
DebugLoc DL = MI->getDebugLoc();
if (DL.isUnknown())
return;
- DILocation DILoc = MF->getDILocation(DL);
- if (!DILoc.getScope().Verify())
- return;
-
+
// Emit a label and update DbgScope if this instruction ends a scope.
InsnToDbgScopeMapTy::iterator I = DbgScopeEndMap.find(MI);
if (I == DbgScopeEndMap.end())
return;
-
+
MCSymbol *Label = MMI->getContext().CreateTempSymbol();
Asm->OutStreamer.EmitLabel(Label);
@@ -2115,7 +2117,6 @@ void DwarfDebug::endScope(const MachineInstr *MI) {
/// createDbgScope - Create DbgScope for the scope.
void DwarfDebug::createDbgScope(MDNode *Scope, MDNode *InlinedAt) {
-
if (!InlinedAt) {
DbgScope *WScope = DbgScopeMap.lookup(Scope);
if (WScope)
@@ -2147,6 +2148,8 @@ bool DwarfDebug::extractScopeInformation() {
DenseMap<const MachineInstr *, unsigned> MIIndexMap;
unsigned MIIndex = 0;
+ LLVMContext &Ctx = MF->getFunction()->getContext();
+
// Scan each instruction and create scopes. First build working set of scopes.
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end();
I != E; ++I) {
@@ -2156,16 +2159,17 @@ bool DwarfDebug::extractScopeInformation() {
// FIXME : Remove DBG_VALUE check.
if (MInsn->isDebugValue()) continue;
MIIndexMap[MInsn] = MIIndex++;
+
DebugLoc DL = MInsn->getDebugLoc();
if (DL.isUnknown()) continue;
- DILocation DLT = MF->getDILocation(DL);
- DIScope DLTScope = DLT.getScope();
- if (!DLTScope.getNode()) continue;
+
+ MDNode *Scope = DL.getScope(Ctx);
+
// There is no need to create another DIE for compile unit. For all
// other scopes, create one DbgScope now. This will be translated
// into a scope DIE at the end.
- if (DLTScope.isCompileUnit()) continue;
- createDbgScope(DLTScope.getNode(), DLT.getOrigLocation().getNode());
+ if (DIScope(Scope).isCompileUnit()) continue;
+ createDbgScope(Scope, DL.getInlinedAt(Ctx));
}
}
@@ -2179,17 +2183,17 @@ bool DwarfDebug::extractScopeInformation() {
// FIXME : Remove DBG_VALUE check.
if (MInsn->isDebugValue()) continue;
DebugLoc DL = MInsn->getDebugLoc();
- if (DL.isUnknown()) continue;
- DILocation DLT = MF->getDILocation(DL);
- DIScope DLTScope = DLT.getScope();
- if (!DLTScope.getNode()) continue;
+ if (DL.isUnknown()) continue;
+
+ MDNode *Scope = DL.getScope(Ctx);
+ if (Scope == 0) continue;
+
// There is no need to create another DIE for compile unit. For all
// other scopes, create one DbgScope now. This will be translated
// into a scope DIE at the end.
- if (DLTScope.isCompileUnit()) continue;
- DbgScope *Scope = getUpdatedDbgScope(DLTScope.getNode(), MInsn,
- DLT.getOrigLocation().getNode());
- Scope->setLastInsn(MInsn);
+ if (DIScope(Scope).isCompileUnit()) continue;
+ DbgScope *DScope = getUpdatedDbgScope(Scope, MInsn, DL.getInlinedAt(Ctx));
+ DScope->setLastInsn(MInsn);
}
}
@@ -2255,20 +2259,21 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) {
// Emit label for the implicitly defined dbg.stoppoint at the start of the
// function.
DebugLoc FDL = MF->getDefaultDebugLoc();
- if (!FDL.isUnknown()) {
- DILocation DLT = MF->getDILocation(FDL);
- DISubprogram SP = getDISubprogram(DLT.getScope().getNode());
- unsigned Line, Col;
- if (SP.Verify()) {
- Line = SP.getLineNumber();
- Col = 0;
- } else {
- Line = DLT.getLineNumber();
- Col = DLT.getColumnNumber();
- }
-
- recordSourceLine(Line, Col, DLT.getScope().getNode());
+ if (FDL.isUnknown()) return;
+
+ MDNode *Scope = FDL.getScope(MF->getFunction()->getContext());
+
+ DISubprogram SP = getDISubprogram(Scope);
+ unsigned Line, Col;
+ if (SP.Verify()) {
+ Line = SP.getLineNumber();
+ Col = 0;
+ } else {
+ Line = FDL.getLine();
+ Col = FDL.getCol();
}
+
+ recordSourceLine(Line, Col, Scope);
}
/// endFunction - Gather and emit post-function debug information.
OpenPOWER on IntegriCloud