[PBQP] Clarify ambiguous-looking typedef.

[oota-llvm.git] / include / llvm / CodeGen / AsmPrinter.h

diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index d5c3e721b092ad9be2e1a0cc174bf1f41edcda81..25b99a2c6976d2df578f49e4ae4e014ba77916a5 100644 (file)
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -52,7 +52,6 @@ class MCSubtargetInfo;
 class MCSymbol;
 class MDNode;
 class DwarfDebug;
-class DwarfException;
 class Mangler;
 class TargetLoweringObjectFile;
 class DataLayout;
@@ -233,7 +232,7 @@ public:
   /// requested, it will override the alignment request if required for
   /// correctness.
   ///
-  void EmitAlignment(unsigned NumBits, const GlobalValue *GV = nullptr) const;
+  void EmitAlignment(unsigned NumBits, const GlobalObject *GO = nullptr) const;
 
   /// This method prints the label for the specified MachineBasicBlock, an
   /// alignment (if present) and a comment describing it if appropriate.
@@ -265,6 +264,9 @@ public:
   /// function.
   virtual void EmitFunctionBodyEnd() {}
 
+  /// Targets can override this to emit stuff at the end of a basic block.
+  virtual void EmitBasicBlockEnd(const MachineBasicBlock &MBB) {}
+
   /// Targets should implement this to emit instructions.
   virtual void EmitInstruction(const MachineInstr *) {
     llvm_unreachable("EmitInstruction not implemented");
@@ -347,12 +349,6 @@ public:
   void EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
                            unsigned Size) const;
 
-  /// Emit something like ".long Hi+Offset-Lo" where the size in bytes of the
-  /// directive is specified by Size and Hi/Lo specify the labels.  This
-  /// implicitly uses .set if it is available.
-  void EmitLabelOffsetDifference(const MCSymbol *Hi, uint64_t Offset,
-                                 const MCSymbol *Lo, unsigned Size) const;
-
   /// Emit something like ".long Label+Offset" where the size in bytes of the
   /// directive is specified by Size and Label specifies the label.  This
   /// implicitly uses .set if it is available.
@@ -403,6 +399,13 @@ public:
   /// Get the value for DW_AT_APPLE_isa. Zero if no isa encoding specified.
   virtual unsigned getISAEncoding() { return 0; }
 
+  /// Emit a dwarf register operation for describing
+  /// - a small value occupying only part of a register or
+  /// - a register representing only part of a value.
+  void EmitDwarfOpPiece(ByteStreamer &Streamer, unsigned SizeInBits,
+                        unsigned OffsetInBits = 0) const;
+
+
   /// \brief Emit a partial DWARF register operation.
   /// \param MLoc             the register
   /// \param PieceSize        size and
@@ -419,7 +422,7 @@ public:
                            unsigned PieceSize = 0,
                            unsigned PieceOffset = 0) const;
 
-  /// Emit dwarf register operation.
+  /// EmitDwarfRegOp - Emit a dwarf register operation.
   /// \param Indirect   whether this is a register-indirect address
   virtual void EmitDwarfRegOp(ByteStreamer &BS, const MachineLocation &MLoc,
                               bool Indirect) const;