[ELF] Simplify code with invokeELFT. NFC

Author: MaskRay

lld/ELF/InputFiles.cpp

@@ -13,6 +13,7 @@
 #include "SymbolTable.h"
 #include "Symbols.h"
 #include "SyntheticSections.h"
+#include "Target.h"
 #include "lld/Common/CommonLinkerContext.h"
 #include "lld/Common/DWARF.h"
 #include "llvm/ADT/STLExtras.h"
@@ -217,24 +218,7 @@ template <class ELFT> static void doParseFile(InputFile *file) {
 }
 
 // Add symbols in File to the symbol table.
-void elf::parseFile(InputFile *file) {
-  switch (config->ekind) {
-  case ELF32LEKind:
-    doParseFile<ELF32LE>(file);
-    return;
-  case ELF32BEKind:
-    doParseFile<ELF32BE>(file);
-    return;
-  case ELF64LEKind:
-    doParseFile<ELF64LE>(file);
-    return;
-  case ELF64BEKind:
-    doParseFile<ELF64BE>(file);
-    return;
-  default:
-    llvm_unreachable("unknown ELFT");
-  }
-}
+void elf::parseFile(InputFile *file) { invokeELFT(doParseFile, file); }
 
 // Concatenates arguments to construct a string representing an error location.
 static std::string createFileLineMsg(StringRef path, unsigned line) {

lld/ELF/InputSection.cpp

@@ -83,22 +83,7 @@ InputSectionBase::InputSectionBase(InputFile *file, uint64_t flags,
     if (!zlib::isAvailable())
       error(toString(file) + ": contains a compressed section, " +
             "but zlib is not available");
-    switch (config->ekind) {
-    case ELF32LEKind:
-      parseCompressedHeader<ELF32LE>();
-      break;
-    case ELF32BEKind:
-      parseCompressedHeader<ELF32BE>();
-      break;
-    case ELF64LEKind:
-      parseCompressedHeader<ELF64LE>();
-      break;
-    case ELF64BEKind:
-      parseCompressedHeader<ELF64BE>();
-      break;
-    default:
-      llvm_unreachable("unknown ELFT");
-    }
+    invokeELFT(parseCompressedHeader);
   }
 }