Revert [CodeView] Emit S_OBJNAME record

Also revert all subsequent fixes:
- abd1cbf5e543f0f114d2742e109ead7d7ddbf9c4 [Clang] Disable debug-info-objname.cpp test on Unix until I sort out the issue.
- 00ec441253048f5e30540ea26bb0a28c42a5fc18 [Clang] debug-info-objname.cpp test: explictly encode a x86 target when using %clang_cl to avoid falling back to a native CPU triple.
- cd407f6e52b09cce2bef24c74b7f36fedc94991b [Clang] Fix build by restricting debug-info-objname.cpp test to x86.

1 files changed, 0 insertions, 24 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index d621108..928252a 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -649,7 +649,6 @@ void CodeViewDebug::endModule() {
   switchToDebugSectionForSymbol(nullptr);
 
   MCSymbol *CompilerInfo = beginCVSubsection(DebugSubsectionKind::Symbols);
-  emitObjName();
   emitCompilerInformation();
   endCVSubsection(CompilerInfo);
 
@@ -785,29 +784,6 @@ void CodeViewDebug::emitTypeGlobalHashes() {
   }
 }
 
-void CodeViewDebug::emitObjName() {
-  MCSymbol *CompilerEnd = beginSymbolRecord(SymbolKind::S_OBJNAME);
-
-  StringRef PathRef(Asm->TM.Options.ObjectFilenameForDebug);
-  llvm::SmallString<256> PathStore(PathRef);
-
-  if (PathRef.empty() || PathRef == "-") {
-    // Don't emit the filename if we're writing to stdout or to /dev/null.
-    PathRef = {};
-  } else {
-    llvm::sys::path::remove_dots(PathStore, /*remove_dot_dot=*/true);
-    PathRef = PathStore;
-  }
-
-  OS.AddComment("Signature");
-  OS.emitIntValue(0, 4);
-
-  OS.AddComment("Object name");
-  emitNullTerminatedSymbolName(OS, PathRef);
-
-  endSymbolRecord(CompilerEnd);
-}
-
 namespace {
 struct Version {
   int Part[4];