Canonicalize header guards into a common format.

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

diff --git a/lib/Target/PowerPC/PPCRelocations.h b/lib/Target/PowerPC/PPCRelocations.h
index 54de9a6fa292398702a5e05df96b87d7d3738c16..e42437ceca6865b67d451cf4eae6a6394a157d0d 100644 (file)
--- a/lib/Target/PowerPC/PPCRelocations.h
+++ b/lib/Target/PowerPC/PPCRelocations.h
@@ -1,36 +1,54 @@
-//===- PPC32Relocations.h - PPC32 Code Relocations --------------*- C++ -*-===//
-// 
+//===-- PPCRelocations.h - PPC Code Relocations -----------------*- C++ -*-===//
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group 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.
+//
 //===----------------------------------------------------------------------===//
 //
 // This file defines the PowerPC 32-bit target-specific relocation types.
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef PPC32RELOCATIONS_H
-#define PPC32RELOCATIONS_H
+#ifndef LLVM_LIB_TARGET_POWERPC_PPCRELOCATIONS_H
+#define LLVM_LIB_TARGET_POWERPC_PPCRELOCATIONS_H
 
 #include "llvm/CodeGen/MachineRelocation.h"
 
+// Hack to rid us of a PPC pre-processor symbol which is erroneously
+// defined in a PowerPC header file (bug in Linux/PPC)
+#ifdef PPC
+#undef PPC
+#endif
+
 namespace llvm {
   namespace PPC {
     enum RelocationType {
+      // reloc_vanilla - A standard relocation, where the address of the
+      // relocated object completely overwrites the address of the relocation.
+      reloc_vanilla,
+    
       // reloc_pcrel_bx - PC relative relocation, for the b or bl instructions.
       reloc_pcrel_bx,
 
-      // reloc_absolute_loadhi - Absolute relocation, for the loadhi instruction
+      // reloc_pcrel_bcx - PC relative relocation, for BLT,BLE,BEQ,BGE,BGT,BNE,
+      // and other bcx instructions.
+      reloc_pcrel_bcx,
+
+      // reloc_absolute_high - Absolute relocation, for the loadhi instruction
       // (which is really addis).  Add the high 16-bits of the specified global
-      // address into the immediate field of the addis.
-      reloc_absolute_loadhi,
+      // address into the low 16-bits of the instruction.
+      reloc_absolute_high,
 
-      // reloc_absolute_la - Absolute relocation, for the la instruction (which
-      // is really an addi).  Add the low 16-bits of teh specified global
-      // address into the immediate field of the addi.
-      reloc_absolute_la,
+      // reloc_absolute_low - Absolute relocation, for the la instruction (which
+      // is really an addi).  Add the low 16-bits of the specified global
+      // address into the low 16-bits of the instruction.
+      reloc_absolute_low,
+      
+      // reloc_absolute_low_ix - Absolute relocation for the 64-bit load/store
+      // instruction which have two implicit zero bits.
+      reloc_absolute_low_ix
     };
   }
 }