Remove the MachineMove class.

It was just a less powerful and more confusing version of
MCCFIInstruction. A side effect is that, since MCCFIInstruction uses
dwarf register numbers, calls to getDwarfRegNum are pushed out, which
should allow further simplifications.

I left the MachineModuleInfo::addFrameMove interface unchanged since
this patch was already fairly big.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 11 insertions, 12 deletions

diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index c2fd6ce367..5973255047 100644
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -38,8 +38,8 @@ namespace llvm {
   class MachineConstantPoolValue;
   class MachineJumpTableInfo;
   class MachineModuleInfo;
-  class MachineMove;
   class MCAsmInfo;
+  class MCCFIInstruction;
   class MCContext;
   class MCSection;
   class MCStreamer;
@@ -417,9 +417,8 @@ namespace llvm {
     // Dwarf Lowering Routines
     //===------------------------------------------------------------------===//
 
-    /// EmitCFIFrameMove - Emit frame instruction to describe the layout of the
-    /// frame.
-    void EmitCFIFrameMove(const MachineMove &Move) const;
+    /// \brief Emit frame instruction to describe the layout of the frame.
+    void emitCFIInstruction(const MCCFIInstruction &Inst) const;
 
     //===------------------------------------------------------------------===//
     // Inline Asm Support
diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h
index b719757822..95eb1e40dc 100644
--- a/include/llvm/CodeGen/MachineModuleInfo.h
+++ b/include/llvm/CodeGen/MachineModuleInfo.h
@@ -106,9 +106,9 @@ class MachineModuleInfo : public ImmutablePass {
   /// want.
   MachineModuleInfoImpl *ObjFileMMI;
 
-  /// FrameMoves - List of moves done by a function's prolog.  Used to construct
-  /// frame maps by debug and exception handling consumers.
-  std::vector<MachineMove> FrameMoves;
+  /// List of moves done by a function's prolog.  Used to construct frame maps
+  /// by debug and exception handling consumers.
+  std::vector<MCCFIInstruction> FrameInstructions;
 
   /// CompactUnwindEncoding - If the target supports it, this is the compact
   /// unwind encoding. It replaces a function's CIE and FDE.
@@ -231,15 +231,15 @@ public:
     UsesVAFloatArgument = b;
   }
 
-  /// getFrameMoves - Returns a reference to a list of moves done in the current
+  /// \brief Returns a reference to a list of cfi instructions in the current
   /// function's prologue.  Used to construct frame maps for debug and exception
   /// handling comsumers.
-  const std::vector<MachineMove> &getFrameMoves() { return FrameMoves; }
+  const std::vector<MCCFIInstruction> &getFrameInstructions() {
+    return FrameInstructions;
+  }
 
   void addFrameMove(MCSymbol *Label, const MachineLocation &Dst,
-                    const MachineLocation &Src) {
-    FrameMoves.push_back(MachineMove(Label, Dst, Src));
-  }
+                    const MachineLocation &Src);
 
   /// getCompactUnwindEncoding - Returns the compact unwind encoding for a
   /// function if the target supports the encoding. This encoding replaces a