Factor out the code to add a MachineOperand to a MachineInstrBuilder.

[oota-llvm.git] / lib / Target / PowerPC / PPCMachOWriterInfo.h

diff --git a/lib/Target/PowerPC/PPCMachOWriterInfo.h b/lib/Target/PowerPC/PPCMachOWriterInfo.h
index 153655594911e625371b7bbc38009931639e0f84..d46334df26028f337757484b5f146ede40094ba2 100644 (file)
--- a/lib/Target/PowerPC/PPCMachOWriterInfo.h
+++ b/lib/Target/PowerPC/PPCMachOWriterInfo.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Bill Wendling and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -19,12 +19,35 @@
 namespace llvm {
 
   // Forward declarations
+  class MachineRelocation;
+  class OutputBuffer;
   class PPCTargetMachine;
 
   class PPCMachOWriterInfo : public TargetMachOWriterInfo {
   public:
     PPCMachOWriterInfo(const PPCTargetMachine &TM);
-    virtual ~PPCMachOWriterInfo() {}
+    virtual ~PPCMachOWriterInfo();
+
+    virtual unsigned GetTargetRelocation(MachineRelocation &MR,
+                                         unsigned FromIdx,
+                                         unsigned ToAddr,
+                                         unsigned ToIdx,
+                                         OutputBuffer &RelocOut,
+                                         OutputBuffer &SecOut,
+                                         bool Scattered, bool Extern) const;
+
+    // Constants for the relocation r_type field.
+    // See <mach-o/ppc/reloc.h>
+    enum {
+      PPC_RELOC_VANILLA, // generic relocation
+      PPC_RELOC_PAIR,    // the second relocation entry of a pair
+      PPC_RELOC_BR14,    // 14 bit branch displacement to word address
+      PPC_RELOC_BR24,    // 24 bit branch displacement to word address
+      PPC_RELOC_HI16,    // a PAIR follows with the low 16 bits
+      PPC_RELOC_LO16,    // a PAIR follows with the high 16 bits
+      PPC_RELOC_HA16,    // a PAIR follows, which is sign extended to 32b
+      PPC_RELOC_LO14     // LO16 with low 2 bits implicitly zero
+    };
   };
 
 } // end llvm namespace