#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DEBUGLOCENTRY_H
#define LLVM_LIB_CODEGEN_ASMPRINTER_DEBUGLOCENTRY_H
+
+#include "DebugLocStream.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfo.h"
namespace llvm {
class AsmPrinter;
-class MDNode;
+
/// \brief This struct describes location entries emitted in the .debug_loc
/// section.
class DebugLocEntry {
public:
/// \brief A single location or constant.
struct Value {
- Value(const MDNode *Var, const MDNode *Expr, int64_t i)
- : Variable(Var), Expression(Expr), EntryKind(E_Integer) {
+ Value(const DIExpression *Expr, int64_t i)
+ : Expression(Expr), EntryKind(E_Integer) {
Constant.Int = i;
}
- Value(const MDNode *Var, const MDNode *Expr, const ConstantFP *CFP)
- : Variable(Var), Expression(Expr), EntryKind(E_ConstantFP) {
+ Value(const DIExpression *Expr, const ConstantFP *CFP)
+ : Expression(Expr), EntryKind(E_ConstantFP) {
Constant.CFP = CFP;
}
- Value(const MDNode *Var, const MDNode *Expr, const ConstantInt *CIP)
- : Variable(Var), Expression(Expr), EntryKind(E_ConstantInt) {
+ Value(const DIExpression *Expr, const ConstantInt *CIP)
+ : Expression(Expr), EntryKind(E_ConstantInt) {
Constant.CIP = CIP;
}
- Value(const MDNode *Var, const MDNode *Expr, MachineLocation Loc)
- : Variable(Var), Expression(Expr), EntryKind(E_Location), Loc(Loc) {
- assert(isa<MDLocalVariable>(Var));
- assert(cast<MDExpression>(Expr)->isValid());
+ Value(const DIExpression *Expr, MachineLocation Loc)
+ : Expression(Expr), EntryKind(E_Location), Loc(Loc) {
+ assert(cast<DIExpression>(Expr)->isValid());
}
- /// The variable to which this location entry corresponds.
- const MDNode *Variable;
-
/// Any complex address location expression for this Value.
- const MDNode *Expression;
+ const DIExpression *Expression;
/// Type of entry that this represents.
enum EntryType { E_Location, E_Integer, E_ConstantFP, E_ConstantInt };
const ConstantFP *getConstantFP() const { return Constant.CFP; }
const ConstantInt *getConstantInt() const { return Constant.CIP; }
MachineLocation getLoc() const { return Loc; }
- DIVariable getVariable() const { return cast<MDLocalVariable>(Variable); }
bool isBitPiece() const { return getExpression()->isBitPiece(); }
- DIExpression getExpression() const {
- return cast_or_null<MDExpression>(Expression);
- }
+ const DIExpression *getExpression() const { return Expression; }
friend bool operator==(const Value &, const Value &);
friend bool operator<(const Value &, const Value &);
};
/// A nonempty list of locations/constants belonging to this entry,
/// sorted by offset.
SmallVector<Value, 1> Values;
- SmallString<8> DWARFBytes;
- SmallVector<std::string, 1> Comments;
public:
DebugLocEntry(const MCSymbol *B, const MCSymbol *E, Value Val)
/// Return true if the merge was successful.
bool MergeValues(const DebugLocEntry &Next) {
if (Begin == Next.Begin) {
- DIExpression Expr = cast_or_null<MDExpression>(Values[0].Expression);
- DIVariable Var = cast_or_null<MDLocalVariable>(Values[0].Variable);
- DIExpression NextExpr =
- cast_or_null<MDExpression>(Next.Values[0].Expression);
- DIVariable NextVar = cast_or_null<MDLocalVariable>(Next.Values[0].Variable);
- if (Var == NextVar && Expr->isBitPiece() && NextExpr->isBitPiece()) {
+ auto *Expr = cast_or_null<DIExpression>(Values[0].Expression);
+ auto *NextExpr = cast_or_null<DIExpression>(Next.Values[0].Expression);
+ if (Expr->isBitPiece() && NextExpr->isBitPiece()) {
addValues(Next.Values);
End = Next.End;
return true;
// Remove any duplicate entries by dropping all but the first.
void sortUniqueValues() {
std::sort(Values.begin(), Values.end());
- Values.erase(std::unique(Values.begin(), Values.end(),
- [](const Value &A, const Value &B) {
- return A.getVariable() == B.getVariable() &&
- A.getExpression() == B.getExpression();
- }),
- Values.end());
+ Values.erase(
+ std::unique(
+ Values.begin(), Values.end(), [](const Value &A, const Value &B) {
+ return A.getExpression() == B.getExpression();
+ }),
+ Values.end());
}
/// \brief Lower this entry into a DWARF expression.
- void finalize(const AsmPrinter &AP, const MDBasicType *TypeIdentifierMap);
-
- /// \brief Return the lowered DWARF expression.
- StringRef getDWARFBytes() const { return DWARFBytes; }
- /// \brief Return the assembler comments for the lowered DWARF expression.
- const SmallVectorImpl<std::string> &getComments() const { return Comments; }
+ void finalize(const AsmPrinter &AP, DebugLocStream::ListBuilder &List,
+ const DIBasicType *BT);
};
/// \brief Compare two Values for equality.
if (A.Expression != B.Expression)
return false;
- if (A.Variable != B.Variable)
- return false;
-
switch (A.EntryKind) {
case DebugLocEntry::Value::E_Location:
return A.Loc == B.Loc;