#include "DwarfDebug.h"
#include "ByteStreamer.h"
#include "DIEHash.h"
+#include "DebugLocEntry.h"
#include "DwarfCompileUnit.h"
#include "DwarfExpression.h"
#include "DwarfUnit.h"
->isBlockByrefStruct();
}
-DIType DbgVariable::getType() const {
+const MDType *DbgVariable::getType() const {
MDType *Ty = Var->getType().resolve(DD->getTypeIdentifierMap());
// FIXME: isBlockByrefVariable should be reformulated in terms of complex
// addresses instead.
uint16_t tag = Ty->getTag();
if (tag == dwarf::DW_TAG_pointer_type)
- subType = resolve(DITypeRef(cast<MDDerivedType>(Ty)->getBaseType()));
+ subType = resolve(cast<MDDerivedType>(Ty)->getBaseType());
auto Elements = cast<MDCompositeTypeBase>(subType)->getElements();
for (unsigned i = 0, N = Elements.size(); i < N; ++i) {
auto *DT = cast<MDDerivedTypeBase>(Elements[i]);
if (getName() == DT->getName())
- return resolve(DITypeRef(DT->getBaseType()));
+ return resolve(DT->getBaseType());
}
}
return Ty;
CU.getOrCreateGlobalVariableDIE(GV);
for (auto *SP : CUNode->getSubprograms())
SPMap.insert(std::make_pair(SP, &CU));
- for (DIType Ty : CUNode->getEnumTypes()) {
+ for (auto *Ty : CUNode->getEnumTypes()) {
// The enum types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
- DIType UniqueTy = cast<MDType>(resolve(Ty->getRef()));
- CU.getOrCreateTypeDIE(UniqueTy);
+ CU.getOrCreateTypeDIE(cast<MDType>(resolve(Ty->getRef())));
}
- for (DIType Ty : CUNode->getRetainedTypes()) {
+ for (auto *Ty : CUNode->getRetainedTypes()) {
// The retained types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
- DIType UniqueTy = cast<MDType>(resolve(Ty->getRef()));
- CU.getOrCreateTypeDIE(UniqueTy);
+ CU.getOrCreateTypeDIE(cast<MDType>(resolve(Ty->getRef())));
}
// Emit imported_modules last so that the relevant context is already
// available.
// Get .debug_loc entry for the instruction range starting at MI.
static DebugLocEntry::Value getDebugLocValue(const MachineInstr *MI) {
- const MDNode *Expr = MI->getDebugExpression();
+ const MDExpression *Expr = MI->getDebugExpression();
assert(MI->getNumOperands() == 4);
if (MI->getOperand(0).isReg()) {
continue;
// Handle multiple DBG_VALUE instructions describing one variable.
- RegVar->setDotDebugLocOffset(DotDebugLocEntries.size());
-
- DotDebugLocEntries.resize(DotDebugLocEntries.size() + 1);
- DebugLocList &LocList = DotDebugLocEntries.back();
- LocList.CU = &TheCU;
- LocList.Label = Asm->createTempSymbol("debug_loc");
+ RegVar->setDebugLocListIndex(
+ DebugLocs.startList(&TheCU, Asm->createTempSymbol("debug_loc")));
// Build the location list for this variable.
- buildLocationList(LocList.List, Ranges);
+ SmallVector<DebugLocEntry, 8> Entries;
+ buildLocationList(Entries, Ranges);
// If the variable has an MDBasicType, extract it. Basic types cannot have
// unique identifiers, so don't bother resolving the type with the
static_cast<const Metadata *>(IV.first->getType()));
// Finalize the entry by lowering it into a DWARF bytestream.
- for (auto &Entry : LocList.List)
- Entry.finalize(*Asm, BT);
+ for (auto &Entry : Entries)
+ Entry.finalize(*Asm, DebugLocs, BT);
}
// Collect info for variables that were optimized out.
Holder.emitStrings(Asm->getObjFileLowering().getDwarfStrSection());
}
-
void DwarfDebug::emitDebugLocEntry(ByteStreamer &Streamer,
- const DebugLocEntry &Entry) {
- auto Comment = Entry.getComments().begin();
- auto End = Entry.getComments().end();
- for (uint8_t Byte : Entry.getDWARFBytes())
+ const DebugLocStream::Entry &Entry) {
+ auto &&Comments = DebugLocs.getComments(Entry);
+ auto Comment = Comments.begin();
+ auto End = Comments.end();
+ for (uint8_t Byte : DebugLocs.getBytes(Entry))
Streamer.EmitInt8(Byte, Comment != End ? *(Comment++) : "");
}
// FIXME: ^
}
-void DebugLocEntry::finalize(const AsmPrinter &AP, const MDBasicType *BT) {
- BufferByteStreamer Streamer(DWARFBytes, Comments);
- const DebugLocEntry::Value Value = Values[0];
+void DebugLocEntry::finalize(const AsmPrinter &AP, DebugLocStream &Locs,
+ const MDBasicType *BT) {
+ Locs.startEntry(Begin, End);
+ BufferByteStreamer Streamer = Locs.getStreamer();
+ const DebugLocEntry::Value &Value = Values[0];
if (Value.isBitPiece()) {
// Emit all pieces that belong to the same variable and range.
assert(std::all_of(Values.begin(), Values.end(), [](DebugLocEntry::Value P) {
}
}
-
-void DwarfDebug::emitDebugLocEntryLocation(const DebugLocEntry &Entry) {
+void DwarfDebug::emitDebugLocEntryLocation(const DebugLocStream::Entry &Entry) {
Asm->OutStreamer.AddComment("Loc expr size");
MCSymbol *begin = Asm->OutStreamer.getContext().CreateTempSymbol();
MCSymbol *end = Asm->OutStreamer.getContext().CreateTempSymbol();
Asm->OutStreamer.SwitchSection(
Asm->getObjFileLowering().getDwarfLocSection());
unsigned char Size = Asm->getDataLayout().getPointerSize();
- for (const auto &DebugLoc : DotDebugLocEntries) {
- Asm->OutStreamer.EmitLabel(DebugLoc.Label);
- const DwarfCompileUnit *CU = DebugLoc.CU;
- for (const auto &Entry : DebugLoc.List) {
+ for (const auto &List : DebugLocs.getLists()) {
+ Asm->OutStreamer.EmitLabel(List.Label);
+ const DwarfCompileUnit *CU = List.CU;
+ for (const auto &Entry : DebugLocs.getEntries(List)) {
// Set up the range. This range is relative to the entry point of the
// compile unit. This is a hard coded 0 for low_pc when we're emitting
// ranges, or the DW_AT_low_pc on the compile unit otherwise.
if (auto *Base = CU->getBaseAddress()) {
- Asm->EmitLabelDifference(Entry.getBeginSym(), Base, Size);
- Asm->EmitLabelDifference(Entry.getEndSym(), Base, Size);
+ Asm->EmitLabelDifference(Entry.BeginSym, Base, Size);
+ Asm->EmitLabelDifference(Entry.EndSym, Base, Size);
} else {
- Asm->OutStreamer.EmitSymbolValue(Entry.getBeginSym(), Size);
- Asm->OutStreamer.EmitSymbolValue(Entry.getEndSym(), Size);
+ Asm->OutStreamer.EmitSymbolValue(Entry.BeginSym, Size);
+ Asm->OutStreamer.EmitSymbolValue(Entry.EndSym, Size);
}
emitDebugLocEntryLocation(Entry);
void DwarfDebug::emitDebugLocDWO() {
Asm->OutStreamer.SwitchSection(
Asm->getObjFileLowering().getDwarfLocDWOSection());
- for (const auto &DebugLoc : DotDebugLocEntries) {
- Asm->OutStreamer.EmitLabel(DebugLoc.Label);
- for (const auto &Entry : DebugLoc.List) {
+ for (const auto &List : DebugLocs.getLists()) {
+ Asm->OutStreamer.EmitLabel(List.Label);
+ for (const auto &Entry : DebugLocs.getEntries(List)) {
// Just always use start_length for now - at least that's one address
// rather than two. We could get fancier and try to, say, reuse an
// address we know we've emitted elsewhere (the start of the function?
// The start of the CU or CU subrange that encloses this range?)
Asm->EmitInt8(dwarf::DW_LLE_start_length_entry);
- unsigned idx = AddrPool.getIndex(Entry.getBeginSym());
+ unsigned idx = AddrPool.getIndex(Entry.BeginSym);
Asm->EmitULEB128(idx);
- Asm->EmitLabelDifference(Entry.getEndSym(), Entry.getBeginSym(), 4);
+ Asm->EmitLabelDifference(Entry.EndSym, Entry.BeginSym, 4);
emitDebugLocEntryLocation(Entry);
}
void DwarfDebug::addDwarfTypeUnitType(DwarfCompileUnit &CU,
StringRef Identifier, DIE &RefDie,
- DICompositeType CTy) {
+ const MDCompositeType *CTy) {
// Fast path if we're building some type units and one has already used the
// address pool we know we're going to throw away all this work anyway, so
// don't bother building dependent types.
// This is inefficient because all the dependent types will be rebuilt
// from scratch, including building them in type units, discovering that
// they depend on addresses, throwing them out and rebuilding them.
- CU.constructTypeDIE(RefDie, CTy);
+ CU.constructTypeDIE(RefDie, cast<MDCompositeType>(CTy));
return;
}
projects / oota-llvm.git / blobdiff