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change DbgScope to keep track of the start/end label as MCSymbol*

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now that the dependence on ID is removed from MMI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98034 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-03-09 01:58:53 +00:00
parent cbac7f1630
commit b7db733482
1 changed files with 36 additions and 41 deletions
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77
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -16,9 +16,10 @@
#include "llvm/Module.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/Mangler.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
@ -171,8 +172,8 @@ class DbgScope {
// Location at which this scope is inlined.
AssertingVH<MDNode> InlinedAtLocation;
bool AbstractScope; // Abstract Scope
unsigned StartLabelID; // Label ID of the beginning of scope.
unsigned EndLabelID; // Label ID of the end of scope.
MCSymbol *StartLabel; // Label ID of the beginning of scope.
MCSymbol *EndLabel; // Label ID of the end of scope.
const MachineInstr *LastInsn; // Last instruction of this scope.
const MachineInstr *FirstInsn; // First instruction of this scope.
SmallVector<DbgScope *, 4> Scopes; // Scopes defined in scope.
@ -183,7 +184,7 @@ class DbgScope {
public:
DbgScope(DbgScope *P, DIDescriptor D, MDNode *I = 0)
: Parent(P), Desc(D), InlinedAtLocation(I), AbstractScope(false),
StartLabelID(0), EndLabelID(0),
StartLabel(0), EndLabel(0),
LastInsn(0), FirstInsn(0), IndentLevel(0) {}
virtual ~DbgScope();
@ -195,12 +196,12 @@ public:
return InlinedAtLocation;
}
MDNode *getScopeNode() const { return Desc.getNode(); }
unsigned getStartLabelID() const { return StartLabelID; }
unsigned getEndLabelID() const { return EndLabelID; }
MCSymbol *getStartLabel() const { return StartLabel; }
MCSymbol *getEndLabel() const { return EndLabel; }
SmallVector<DbgScope *, 4> &getScopes() { return Scopes; }
SmallVector<DbgVariable *, 8> &getVariables() { return Variables; }
void setStartLabelID(unsigned S) { StartLabelID = S; }
void setEndLabelID(unsigned E) { EndLabelID = E; }
void setStartLabel(MCSymbol *S) { StartLabel = S; }
void setEndLabel(MCSymbol *E) { EndLabel = E; }
void setLastInsn(const MachineInstr *MI) { LastInsn = MI; }
const MachineInstr *getLastInsn() { return LastInsn; }
void setFirstInsn(const MachineInstr *MI) { FirstInsn = MI; }
@ -264,7 +265,7 @@ void DbgScope::dump() const {
err.indent(IndentLevel);
MDNode *N = Desc.getNode();
N->dump();
err << " [" << StartLabelID << ", " << EndLabelID << "]\n";
err << " [" << StartLabel << ", " << EndLabel << "]\n";
if (AbstractScope)
err << "Abstract Scope\n";
@ -1362,24 +1363,20 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(MDNode *SPNode) {
/// constructLexicalScope - Construct new DW_TAG_lexical_block
/// for this scope and attach DW_AT_low_pc/DW_AT_high_pc labels.
DIE *DwarfDebug::constructLexicalScopeDIE(DbgScope *Scope) {
unsigned StartID = Scope->getStartLabelID();
unsigned EndID = Scope->getEndLabelID();
MCSymbol *Start = Scope->getStartLabel();
MCSymbol *End = Scope->getEndLabel();
assert(!MMI->isLabelDeleted(StartID) &&
"Invalid starting label for an inlined scope!");
assert(!MMI->isLabelDeleted(EndID) &&
"Invalid end label for an inlined scope!");
assert(Start->isDefined() && "Invalid starting label for an inlined scope!");
assert(End->isDefined() && "Invalid end label for an inlined scope!");
DIE *ScopeDIE = new DIE(dwarf::DW_TAG_lexical_block);
if (Scope->isAbstractScope())
return ScopeDIE;
addLabel(ScopeDIE, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
StartID ? getDWLabel("label", StartID)
: getDWLabel("func_begin", SubprogramCount));
Start ? Start : getDWLabel("func_begin", SubprogramCount));
addLabel(ScopeDIE, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
EndID ? getDWLabel("label", EndID)
: getDWLabel("func_end", SubprogramCount));
End ? End : getDWLabel("func_end", SubprogramCount));
return ScopeDIE;
}
@ -1388,11 +1385,11 @@ DIE *DwarfDebug::constructLexicalScopeDIE(DbgScope *Scope) {
/// a function. Construct DIE to represent this concrete inlined copy
/// of the function.
DIE *DwarfDebug::constructInlinedScopeDIE(DbgScope *Scope) {
unsigned StartID = Scope->getStartLabelID();
unsigned EndID = Scope->getEndLabelID();
assert(!MMI->isLabelDeleted(StartID) &&
MCSymbol *StartLabel = Scope->getStartLabel();
MCSymbol *EndLabel = Scope->getEndLabel();
assert(StartLabel->isDefined() &&
"Invalid starting label for an inlined scope!");
assert(!MMI->isLabelDeleted(EndID) &&
assert(EndLabel->isDefined() &&
"Invalid end label for an inlined scope!");
if (!Scope->getScopeNode())
return NULL;
@ -1405,11 +1402,8 @@ DIE *DwarfDebug::constructInlinedScopeDIE(DbgScope *Scope) {
addDIEEntry(ScopeDIE, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, OriginDIE);
MCSymbol *StartLabel = getDWLabel("label", StartID);
addLabel(ScopeDIE, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr, StartLabel);
addLabel(ScopeDIE, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
getDWLabel("label", EndID));
addLabel(ScopeDIE, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr, EndLabel);
InlinedSubprogramDIEs.insert(OriginDIE);
@ -1961,7 +1955,7 @@ void DwarfDebug::beginScope(const MachineInstr *MI, unsigned Label) {
ScopeVector &SD = I->second;
for (ScopeVector::iterator SDI = SD.begin(), SDE = SD.end();
SDI != SDE; ++SDI)
(*SDI)->setStartLabelID(Label);
(*SDI)->setStartLabel(getDWLabel("label", Label));
}
/// endScope - Process end of a scope.
@ -1970,13 +1964,13 @@ void DwarfDebug::endScope(const MachineInstr *MI) {
if (I == DbgScopeEndMap.end())
return;
unsigned Label = MMI->NextLabelID();
Asm->printLabel(Label);
MCSymbol *Label = getDWLabel("label", MMI->NextLabelID());
Asm->OutStreamer.EmitLabel(Label);
SmallVector<DbgScope *, 2> &SD = I->second;
SmallVector<DbgScope*, 2> &SD = I->second;
for (SmallVector<DbgScope *, 2>::iterator SDI = SD.begin(), SDE = SD.end();
SDI != SDE; ++SDI)
(*SDI)->setEndLabelID(Label);
(*SDI)->setEndLabel(Label);
return;
}
@ -2120,16 +2114,17 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) {
DebugLoc FDL = MF->getDefaultDebugLoc();
if (!FDL.isUnknown()) {
DILocation DLT = MF->getDILocation(FDL);
unsigned LabelID = 0;
DISubprogram SP = getDISubprogram(DLT.getScope().getNode());
if (SP.Verify())
LabelID = recordSourceLine(SP.getLineNumber(), 0,
DLT.getScope().getNode());
else
LabelID = recordSourceLine(DLT.getLineNumber(),
DLT.getColumnNumber(),
DLT.getScope().getNode());
Asm->printLabel(LabelID);
unsigned Line, Col;
if (SP.Verify()) {
Line = SP.getLineNumber();
Col = 0;
} else {
Line = DLT.getLineNumber();
Col = DLT.getColumnNumber();
}
Asm->printLabel(recordSourceLine(Line, Col, DLT.getScope().getNode()));
}
if (TimePassesIsEnabled)
DebugTimer->stopTimer();