[PowerPC] Merge/rename PPC fixup types

Now that fixup_ppc_ha16 and fixup_ppc_lo16 are being treated exactly
the same everywhere, it no longer makes sense to have two fixup types.

This patch merges them both into a single type fixup_ppc_half16,
and renames fixup_ppc_lo16_ds to fixup_ppc_half16ds for consistency.
(The half16 and half16ds names are taken from the description of
relocation types in the PowerPC ABI.)

No change in code generation expected.

llvm-svn: 182092

4 files changed, 17 insertions, 28 deletions

diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
index 9ec5f0e0b54..3fa2e0933cf 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
@@ -37,13 +37,9 @@ static uint64_t adjustFixupValue(unsigned Kind, uint64_t Value) {
     return Value & 0xfffc;
   case PPC::fixup_ppc_br24:
     return Value & 0x3fffffc;
-#if 0
-  case PPC::fixup_ppc_hi16:
-#endif
-  case PPC::fixup_ppc_ha16:
-  case PPC::fixup_ppc_lo16:
+  case PPC::fixup_ppc_half16:
     return Value & 0xffff;
-  case PPC::fixup_ppc_lo16_ds:
+  case PPC::fixup_ppc_half16ds:
     return Value & 0xfffc;
   }
 }
@@ -55,9 +51,8 @@ static unsigned getFixupKindNumBytes(unsigned Kind) {
   case FK_Data_1:
     return 1;
   case FK_Data_2:
-  case PPC::fixup_ppc_ha16:
-  case PPC::fixup_ppc_lo16:
-  case PPC::fixup_ppc_lo16_ds:
+  case PPC::fixup_ppc_half16:
+  case PPC::fixup_ppc_half16ds:
     return 2;
   case FK_Data_4:
   case PPC::fixup_ppc_brcond14:
@@ -98,9 +93,8 @@ public:
       // name                    offset  bits  flags
       { "fixup_ppc_br24",        6,      24,   MCFixupKindInfo::FKF_IsPCRel },
       { "fixup_ppc_brcond14",    16,     14,   MCFixupKindInfo::FKF_IsPCRel },
-      { "fixup_ppc_lo16",         0,     16,   0 },
-      { "fixup_ppc_ha16",         0,     16,   0 },
-      { "fixup_ppc_lo16_ds",      0,     14,   0 },
+      { "fixup_ppc_half16",       0,     16,   0 },
+      { "fixup_ppc_half16ds",     0,     14,   0 },
       { "fixup_ppc_tlsreg",       0,      0,   0 },
       { "fixup_ppc_nofixup",      0,      0,   0 }
     };
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp
index 5193dca2882..5c272c0ee97 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp
@@ -81,8 +81,7 @@ unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
     case PPC::fixup_ppc_brcond14:
       Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
       break;
-    case PPC::fixup_ppc_ha16:
-    case PPC::fixup_ppc_lo16:
+    case PPC::fixup_ppc_half16:
       switch (Modifier) {
       default: llvm_unreachable("Unsupported Modifier");
       case MCSymbolRefExpr::VK_PPC_TPREL16_HA:
@@ -134,7 +133,7 @@ unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
         break;
       }
       break;
-    case PPC::fixup_ppc_lo16_ds:
+    case PPC::fixup_ppc_half16ds:
       switch (Modifier) {
       default: llvm_unreachable("Unsupported Modifier");
       case MCSymbolRefExpr::VK_None:
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCFixupKinds.h b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCFixupKinds.h
index 86c44f57a5e..3ea59f0b2fc 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCFixupKinds.h
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCFixupKinds.h
@@ -25,17 +25,13 @@ enum Fixups {
   /// branches.
   fixup_ppc_brcond14,
   
-  /// fixup_ppc_lo16 - A 16-bit fixup corresponding to lo16(_foo) for instrs
-  /// like 'li'.
-  fixup_ppc_lo16,
+  /// fixup_ppc_half16 - A 16-bit fixup corresponding to lo16(_foo)
+  /// or ha16(_foo) for instrs like 'li' or 'addis'.
+  fixup_ppc_half16,
   
-  /// fixup_ppc_ha16 - A 16-bit fixup corresponding to ha16(_foo) for instrs
-  /// like 'lis'.
-  fixup_ppc_ha16,
-  
-  /// fixup_ppc_lo16_ds - A 14-bit fixup corresponding to lo16(_foo) with
+  /// fixup_ppc_half16ds - A 14-bit fixup corresponding to lo16(_foo) with
   /// implied 2 zero bits for instrs like 'std'.
-  fixup_ppc_lo16_ds,
+  fixup_ppc_half16ds,
 
   /// fixup_ppc_tlsreg - Insert thread-pointer register number.
   fixup_ppc_tlsreg,
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.cpp
index 244c534d9c9..34bd483ee0f 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.cpp
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.cpp
@@ -143,7 +143,7 @@ unsigned PPCMCCodeEmitter::getHA16Encoding(const MCInst &MI, unsigned OpNo,
   
   // Add a fixup for the branch target.
   Fixups.push_back(MCFixup::Create(2, MO.getExpr(),
-                                   (MCFixupKind)PPC::fixup_ppc_ha16));
+                                   (MCFixupKind)PPC::fixup_ppc_half16));
   return 0;
 }
 
@@ -154,7 +154,7 @@ unsigned PPCMCCodeEmitter::getLO16Encoding(const MCInst &MI, unsigned OpNo,
   
   // Add a fixup for the branch target.
   Fixups.push_back(MCFixup::Create(2, MO.getExpr(),
-                                   (MCFixupKind)PPC::fixup_ppc_lo16));
+                                   (MCFixupKind)PPC::fixup_ppc_half16));
   return 0;
 }
 
@@ -171,7 +171,7 @@ unsigned PPCMCCodeEmitter::getMemRIEncoding(const MCInst &MI, unsigned OpNo,
   
   // Add a fixup for the displacement field.
   Fixups.push_back(MCFixup::Create(2, MO.getExpr(),
-                                   (MCFixupKind)PPC::fixup_ppc_lo16));
+                                   (MCFixupKind)PPC::fixup_ppc_half16));
   return RegBits;
 }
 
@@ -189,7 +189,7 @@ unsigned PPCMCCodeEmitter::getMemRIXEncoding(const MCInst &MI, unsigned OpNo,
   
   // Add a fixup for the displacement field.
   Fixups.push_back(MCFixup::Create(2, MO.getExpr(),
-                                   (MCFixupKind)PPC::fixup_ppc_lo16_ds));
+                                   (MCFixupKind)PPC::fixup_ppc_half16ds));
   return RegBits;
 }