[DWARFLinkerParallel] Use llvm::endianness::native (NFC)

Author: kazutakahirata

llvm/lib/DWARFLinkerParallel/DWARFLinkerCompileUnit.cpp

@@ -1090,8 +1090,7 @@ void CompileUnit::cloneDieAttrExpression(
         OutputExpression.push_back(dwarf::DW_OP_addr);
         uint64_t LinkedAddress =
             SA->Address + (VarAddressAdjustment ? *VarAddressAdjustment : 0);
-        if ((getEndianness() == support::endianness::little) !=
-            sys::IsLittleEndianHost)
+        if (getEndianness() != llvm::endianness::native)
           sys::swapByteOrder(LinkedAddress);
         ArrayRef<uint8_t> AddressBytes(
             reinterpret_cast<const uint8_t *>(&LinkedAddress),
@@ -1128,8 +1127,7 @@ void CompileUnit::cloneDieAttrExpression(
           OutputExpression.push_back(*OutOperandKind);
           uint64_t LinkedAddress =
               SA->Address + (VarAddressAdjustment ? *VarAddressAdjustment : 0);
-          if ((getEndianness() == support::endianness::little) !=
-              sys::IsLittleEndianHost)
+          if (getEndianness() != llvm::endianness::native)
             sys::swapByteOrder(LinkedAddress);
           ArrayRef<uint8_t> AddressBytes(
               reinterpret_cast<const uint8_t *>(&LinkedAddress),

llvm/lib/DWARFLinkerParallel/OutputSections.cpp

@@ -151,18 +151,18 @@ void SectionDescriptor::emitIntVal(uint64_t Val, unsigned Size) {
   } break;
   case 2: {
     uint16_t ShortVal = static_cast<uint16_t>(Val);
-    if ((Endianess == support::endianness::little) != sys::IsLittleEndianHost)
+    if (Endianess != llvm::endianness::native)
       sys::swapByteOrder(ShortVal);
     OS.write(reinterpret_cast<const char *>(&ShortVal), Size);
   } break;
   case 4: {
     uint32_t ShortVal = static_cast<uint32_t>(Val);
-    if ((Endianess == support::endianness::little) != sys::IsLittleEndianHost)
+    if (Endianess != llvm::endianness::native)
       sys::swapByteOrder(ShortVal);
     OS.write(reinterpret_cast<const char *>(&ShortVal), Size);
   } break;
   case 8: {
-    if ((Endianess == support::endianness::little) != sys::IsLittleEndianHost)
+    if (Endianess != llvm::endianness::native)
       sys::swapByteOrder(Val);
     OS.write(reinterpret_cast<const char *>(&Val), Size);
   } break;