[MC] Remove assignFragment

Follow-up to f6fc503 ("[MC] Remove MCStreamer::SymbolOrdering").

Author: MaskRay

llvm/include/llvm/MC/MCStreamer.h

@@ -439,12 +439,6 @@ class MCStreamer {
 
   MCSymbol *endSection(MCSection *Section);
 
-  /// Sets the symbol's section.
-  ///
-  /// Each emitted symbol will be tracked in the ordering table,
-  /// so we can sort on them later.
-  void assignFragment(MCSymbol *Symbol, MCFragment *Fragment);
-
   /// Returns the mnemonic for \p MI, if the streamer has access to a
   /// instruction printer and returns an empty string otherwise.
   virtual StringRef getMnemonic(MCInst &MI) { return ""; }

llvm/lib/MC/MCAsmStreamer.cpp

@@ -1080,7 +1080,7 @@ void MCAsmStreamer::emitZerofill(MCSection *Section, MCSymbol *Symbol,
                                  uint64_t Size, Align ByteAlignment,
                                  SMLoc Loc) {
   if (Symbol)
-    assignFragment(Symbol, &Section->getDummyFragment());
+    Symbol->setFragment(&Section->getDummyFragment());
 
   // Note: a .zerofill directive does not switch sections.
   OS << ".zerofill ";
@@ -1106,9 +1106,8 @@ void MCAsmStreamer::emitZerofill(MCSection *Section, MCSymbol *Symbol,
 // e.g. _a.
 void MCAsmStreamer::emitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
                                    uint64_t Size, Align ByteAlignment) {
-  assignFragment(Symbol, &Section->getDummyFragment());
+  Symbol->setFragment(&Section->getDummyFragment());
 
-  assert(Symbol && "Symbol shouldn't be NULL!");
   // Instead of using the Section we'll just use the shortcut.
 
   assert(Section->getVariant() == MCSection::SV_MachO &&

llvm/lib/MC/MCStreamer.cpp

@@ -411,11 +411,6 @@ void MCStreamer::initSections(bool NoExecStack, const MCSubtargetInfo &STI) {
   switchSection(getContext().getObjectFileInfo()->getTextSection());
 }
 
-void MCStreamer::assignFragment(MCSymbol *Symbol, MCFragment *Fragment) {
-  assert(Fragment);
-  Symbol->setFragment(Fragment);
-}
-
 void MCStreamer::emitLabel(MCSymbol *Symbol, SMLoc Loc) {
   Symbol->redefineIfPossible();
 

llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFStreamer.cpp

@@ -76,7 +76,7 @@ void PPCELFStreamer::emitPrefixedInstruction(const MCInst &Inst,
     // label to the top of the fragment containing the aligned instruction that
     // was just added.
     if (InstLine == LabelLine) {
-      assignFragment(LastLabel, InstructionFragment);
+      LastLabel->setFragment(InstructionFragment);
       LastLabel->setOffset(0);
     }
   }