Revert "Add bool to DebugLocDwarfExpression to control emitting comments."

This reverts commit 0037b6bcbc874aa1b93d7ce3ad8dba3753ee2d9d (r237827).

David Blaikie suggested some alternatives to this which are better.  Reverting to apply a better solution later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237849 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp

@@ -185,8 +185,7 @@ void AsmPrinter::emitSectionOffset(const MCSymbol *Label) const {
 void AsmPrinter::EmitDwarfRegOp(ByteStreamer &Streamer,
                                 const MachineLocation &MLoc) const {
   DebugLocDwarfExpression Expr(*MF->getSubtarget().getRegisterInfo(),
-                               getDwarfDebug()->getDwarfVersion(),
-                               OutStreamer->hasRawTextSupport(), Streamer);
+                               getDwarfDebug()->getDwarfVersion(), Streamer);
   const MCRegisterInfo *MRI = MMI->getContext().getRegisterInfo();
   int Reg = MRI->getDwarfRegNum(MLoc.getReg(), false);
   if (Reg < 0) {

lib/CodeGen/AsmPrinter/DwarfDebug.cpp

@@ -108,8 +108,6 @@ static const char *const DWARFGroupName = "DWARF Emission";
 static const char *const DbgTimerName = "DWARF Debug Writer";
 
 void DebugLocDwarfExpression::EmitOp(uint8_t Op, const char *Comment) {
-  if (!PrintComments)
-    return BS.EmitInt8(Op, Twine());
   BS.EmitInt8(
       Op, Comment ? Twine(Comment) + " " + dwarf::OperationEncodingString(Op)
                   : dwarf::OperationEncodingString(Op));
@@ -1479,7 +1477,6 @@ static void emitDebugLocValue(const AsmPrinter &AP, const DIBasicType *BT,
                               unsigned PieceOffsetInBits) {
   DebugLocDwarfExpression DwarfExpr(*AP.MF->getSubtarget().getRegisterInfo(),
                                     AP.getDwarfDebug()->getDwarfVersion(),
-                                    AP.OutStreamer->hasRawTextSupport(),
                                     Streamer);
   // Regular entry.
   if (Value.isInt()) {
@@ -1533,7 +1530,6 @@ void DebugLocEntry::finalize(const AsmPrinter &AP, DebugLocStream &Locs,
         // The DWARF spec seriously mandates pieces with no locations for gaps.
         DebugLocDwarfExpression Expr(*AP.MF->getSubtarget().getRegisterInfo(),
                                      AP.getDwarfDebug()->getDwarfVersion(),
-                                     AP.OutStreamer->hasRawTextSupport(),
                                      Streamer);
         Expr.AddOpPiece(PieceOffset-Offset, 0);
         Offset += PieceOffset-Offset;

lib/CodeGen/AsmPrinter/DwarfExpression.h

@@ -34,15 +34,10 @@ protected:
   const TargetRegisterInfo &TRI;
   unsigned DwarfVersion;
 
-  /// \brief Set to true if we want comments to be emitted.  This is usually
-  /// only the case when the AsmPrinter is emitting to a text stream with
-  /// comments enabled.
-  bool PrintComments;
-
 public:
   DwarfExpression(const TargetRegisterInfo &TRI,
-                  unsigned DwarfVersion, bool PrintComments)
-    : TRI(TRI), DwarfVersion(DwarfVersion), PrintComments(PrintComments) {}
+                  unsigned DwarfVersion)
+    : TRI(TRI), DwarfVersion(DwarfVersion) {}
   virtual ~DwarfExpression() {}
 
   /// Output a dwarf operand and an optional assembler comment.
@@ -114,9 +109,8 @@ class DebugLocDwarfExpression : public DwarfExpression {
 
 public:
   DebugLocDwarfExpression(const TargetRegisterInfo &TRI,
-                          unsigned DwarfVersion, bool PrintComments,
-                          ByteStreamer &BS)
-    : DwarfExpression(TRI, DwarfVersion, PrintComments), BS(BS) {}
+                          unsigned DwarfVersion, ByteStreamer &BS)
+    : DwarfExpression(TRI, DwarfVersion), BS(BS) {}
 
   void EmitOp(uint8_t Op, const char *Comment = nullptr) override;
   void EmitSigned(int64_t Value) override;

lib/CodeGen/AsmPrinter/DwarfUnit.cpp

@@ -47,7 +47,7 @@ GenerateDwarfTypeUnits("generate-type-units", cl::Hidden,
 DIEDwarfExpression::DIEDwarfExpression(const AsmPrinter &AP, DwarfUnit &DU,
                                        DIELoc &DIE)
     : DwarfExpression(*AP.MF->getSubtarget().getRegisterInfo(),
-                      AP.getDwarfDebug()->getDwarfVersion(), false),
+                      AP.getDwarfDebug()->getDwarfVersion()),
       AP(AP), DU(DU), DIE(DIE) {}
 
 void DIEDwarfExpression::EmitOp(uint8_t Op, const char* Comment) {