Remove a bit of dead code.

Every "real" object file implements this an ptx doesn't use it.

llvm-svn: 221746

Author: espindola

llvm/include/llvm/Target/TargetLoweringObjectFile.h

@@ -160,7 +160,7 @@ class TargetLoweringObjectFile : public MCObjectFileInfo {
 protected:
   virtual const MCSection *
   SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
-                         Mangler &Mang, const TargetMachine &TM) const;
+                         Mangler &Mang, const TargetMachine &TM) const = 0;
 };
 
 } // end namespace llvm

llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp

@@ -4496,3 +4496,10 @@ NVPTXTargetObjectFile::~NVPTXTargetObjectFile() {
   delete DwarfRangesSection;
   delete DwarfMacroInfoSection;
 }
+
+const MCSection *
+NVPTXTargetObjectFile::SelectSectionForGlobal(const GlobalValue *GV,
+                                              SectionKind Kind, Mangler &Mang,
+                                              const TargetMachine &TM) const {
+  return getDataSection();
+}

llvm/lib/Target/NVPTX/NVPTXTargetObjectFile.h

@@ -98,6 +98,9 @@ class NVPTXTargetObjectFile : public TargetLoweringObjectFile {
     return DataSection;
   }
 
+  const MCSection *
+  SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, Mangler &Mang,
+                         const TargetMachine &TM) const override;
 };
 
 } // end namespace llvm

llvm/lib/Target/TargetLoweringObjectFile.cpp

@@ -275,25 +275,6 @@ bool TargetLoweringObjectFile::isSectionAtomizableBySymbols(
   return false;
 }
 
-// Lame default implementation. Calculate the section name for global.
-const MCSection *
-TargetLoweringObjectFile::SelectSectionForGlobal(const GlobalValue *GV,
-                                                 SectionKind Kind,
-                                                 Mangler &Mang,
-                                                 const TargetMachine &TM) const{
-  assert(!Kind.isThreadLocal() && "Doesn't support TLS");
-
-  if (Kind.isText())
-    return getTextSection();
-
-  if (Kind.isBSS() && BSSSection != nullptr)
-    return BSSSection;
-
-  if (Kind.isReadOnly() && ReadOnlySection != nullptr)
-    return ReadOnlySection;
-
-  return getDataSection();
-}
 
 /// getSectionForConstant - Given a mergable constant with the
 /// specified size and relocation information, return a section that it