[lld] COFF: Set parent name for bitcode files.

[pcc]

Ping.

[ruiu]

LGTM

COFF/Symbols.cpp

228–232

Add braces

COFF/Symbols.cpp

ErrorOr<std::unique_ptr<InputFile>> Lazy::getMember() {
   MemoryBufferRef MBRef = MBRefOrErr.get();
 
   // getMember returns an empty buffer if the member was already
   // read from the library.
   if (MBRef.getBuffer().empty())
     return std::unique_ptr<InputFile>(nullptr);
 
   file_magic Magic = identify_magic(MBRef.getBuffer());
-  if (Magic == file_magic::bitcode)
-    return std::unique_ptr<InputFile>(new BitcodeFile(MBRef));
   if (Magic == file_magic::coff_import_library)
     return std::unique_ptr<InputFile>(new ImportFile(MBRef));
 
-  if (Magic != file_magic::coff_object) {
+  std::unique_ptr<InputFile> Obj;
+  if (Magic == file_magic::coff_object)
+    Obj.reset(new ObjectFile(MBRef));
+  else if (Magic == file_magic::bitcode)
+    Obj.reset(new BitcodeFile(MBRef));
+  else {
     llvm::errs() << File->getName() << ": unknown file type\n";
     return make_error_code(LLDError::InvalidFile);
   }
 
-  std::unique_ptr<InputFile> Obj(new ObjectFile(MBRef));
   Obj->setParentName(File->getName());
   return std::move(Obj);
 }
 
 Defined *Undefined::getWeakAlias() {
   // A weak alias may be a weak alias to another symbol, so check recursively.
   for (SymbolBody *A = WeakAlias; A; A = cast<Undefined>(A)->WeakAlias)
     if (auto *D = dyn_cast<Defined>(A->repl()))
       return D;
   return nullptr;
 }
 
 } // namespace coff
 } // namespace lld

test/COFF/lto.ll

 ; RUN: llvm-as -o %T/main.lto.obj %s
 ; RUN: llvm-as -o %T/foo.lto.obj %S/Inputs/lto-dep.ll
 ; RUN: rm -f %T/foo.lto.lib
 ; RUN: llvm-ar cru %T/foo.lto.lib %T/foo.lto.obj
 
 ; RUN: llc -filetype=obj -o %T/main.obj %s
 ; RUN: llc -filetype=obj -o %T/foo.obj %S/Inputs/lto-dep.ll
 ; RUN: rm -f %T/foo.lib
 ; RUN: llvm-ar cru %T/foo.lib %T/foo.obj
 
 ; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /include:f2 /subsystem:console %T/main.lto.obj %T/foo.lto.obj
 ; RUN: llvm-readobj -file-headers %T/main.exe | FileCheck -check-prefix=HEADERS-11 %s
 ; RUN: llvm-objdump -d %T/main.exe | FileCheck -check-prefix=TEXT-11 %s
-; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /include:f2 /subsystem:console %T/main.lto.obj %T/foo.lto.lib
+; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /include:f2 /subsystem:console %T/main.lto.obj %T/foo.lto.lib /verbose 2>&1 | FileCheck -check-prefix=VERBOSE %s
 ; RUN: llvm-readobj -file-headers %T/main.exe | FileCheck -check-prefix=HEADERS-11 %s
 ; RUN: llvm-objdump -d %T/main.exe | FileCheck -check-prefix=TEXT-11 %s
 
 ; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /subsystem:console %T/main.obj %T/foo.lto.obj
 ; RUN: llvm-readobj -file-headers %T/main.exe | FileCheck -check-prefix=HEADERS-01 %s
 ; RUN: llvm-objdump -d %T/main.exe | FileCheck -check-prefix=TEXT-01 %s
 ; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /subsystem:console %T/main.obj %T/foo.lto.lib
 ; RUN: llvm-readobj -file-headers %T/main.exe | FileCheck -check-prefix=HEADERS-01 %s
 ; RUN: llvm-objdump -d %T/main.exe | FileCheck -check-prefix=TEXT-01 %s
 
 ; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /subsystem:console %T/main.lto.obj %T/foo.obj
 ; RUN: llvm-readobj -file-headers %T/main.exe | FileCheck -check-prefix=HEADERS-10 %s
 ; RUN: llvm-objdump -d %T/main.exe | FileCheck -check-prefix=TEXT-10 %s
 ; RUN: lld -flavor link2 /out:%T/main.exe /entry:main /subsystem:console %T/main.lto.obj %T/foo.lib
 ; RUN: llvm-readobj -file-headers %T/main.exe | FileCheck -check-prefix=HEADERS-10 %s
 ; RUN: llvm-objdump -d %T/main.exe | FileCheck -check-prefix=TEXT-10 %s
 
+; VERBOSE: foo.lto.lib({{.*}}foo.lto.obj)
+
 ; HEADERS-11: AddressOfEntryPoint: 0x1000
 ; TEXT-11: Disassembly of section .text:
 ; TEXT-11-NEXT: .text:
 ; TEXT-11-NEXT: xorl  %eax, %eax
 ; TEXT-11-NEXT: retq
 ; TEXT-11-NEXT: int3
 ; TEXT-11-NEXT: int3
 ; TEXT-11-NEXT: int3