[MC] Remove empty fixELFSymbolsInTLSFixups overrides

Follow-up to 2ada0c1

Author: MaskRay

llvm/lib/MC/MCWinCOFFStreamer.cpp

@@ -82,10 +82,6 @@ class MCCOFFSectionNumberTargetExpr final : public MCTargetExpr {
   MCFragment *findAssociatedFragment() const override {
     return SectionSymbol.getFragment();
   }
-
-  void fixELFSymbolsInTLSFixups(MCAssembler &) const override {
-    llvm_unreachable("Not supported for ELF");
-  }
 };
 
 /// MCExpr that represents the offset to a symbol from the beginning of its
@@ -123,10 +119,6 @@ class MCCOFFSectionOffsetTargetExpr final : public MCTargetExpr {
   MCFragment *findAssociatedFragment() const override {
     return Symbol.getFragment();
   }
-
-  void fixELFSymbolsInTLSFixups(MCAssembler &) const override {
-    llvm_unreachable("Not supported for ELF");
-  }
 };
 
 MCWinCOFFStreamer::MCWinCOFFStreamer(MCContext &Context,

llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCExpr.h

@@ -100,7 +100,6 @@ class AMDGPUMCExpr : public MCTargetExpr {
   bool isSymbolUsedInExpression(const MCSymbol *Sym) const override;
   void visitUsedExpr(MCStreamer &Streamer) const override;
   MCFragment *findAssociatedFragment() const override;
-  void fixELFSymbolsInTLSFixups(MCAssembler &) const override{};
 
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;

llvm/lib/Target/ARM/MCTargetDesc/ARMMCExpr.h

@@ -90,9 +90,6 @@ class ARMMCExpr : public MCTargetExpr {
     return getSubExpr()->findAssociatedFragment();
   }
 
-  // There are no TLS ARMMCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }

llvm/lib/Target/AVR/MCTargetDesc/AVRMCExpr.h

@@ -73,8 +73,6 @@ class AVRMCExpr : public MCTargetExpr {
     return getSubExpr()->findAssociatedFragment();
   }
 
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }

llvm/lib/Target/Lanai/MCTargetDesc/LanaiMCExpr.h

@@ -43,9 +43,6 @@ class LanaiMCExpr : public MCTargetExpr {
     return getSubExpr()->findAssociatedFragment();
   }
 
-  // There are no TLS LanaiMCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler & /*Asm*/) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }

llvm/lib/Target/NVPTX/NVPTXMCExpr.h

@@ -81,9 +81,6 @@ class NVPTXFloatMCExpr : public MCTargetExpr {
   void visitUsedExpr(MCStreamer &Streamer) const override {};
   MCFragment *findAssociatedFragment() const override { return nullptr; }
 
-  // There are no TLS NVPTXMCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }
@@ -122,9 +119,6 @@ class NVPTXGenericMCSymbolRefExpr : public MCTargetExpr {
   void visitUsedExpr(MCStreamer &Streamer) const override {};
   MCFragment *findAssociatedFragment() const override { return nullptr; }
 
-  // There are no TLS NVPTXMCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }

llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h

@@ -149,9 +149,6 @@ class PPCMCExpr : public MCTargetExpr {
     return getSubExpr()->findAssociatedFragment();
   }
 
-  // There are no TLS PPCMCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   bool evaluateAsConstant(int64_t &Res) const;
 
   static bool classof(const MCExpr *E) {

llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCExpr.h

@@ -54,9 +54,6 @@ class SystemZMCExpr : public MCTargetExpr {
     return getSubExpr()->findAssociatedFragment();
   }
 
-  // There are no TLS SystemZMCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }

llvm/lib/Target/X86/MCTargetDesc/X86MCExpr.h

@@ -67,9 +67,6 @@ class X86MCExpr : public MCTargetExpr {
   void visitUsedExpr(MCStreamer &Streamer) const override {}
   MCFragment *findAssociatedFragment() const override { return nullptr; }
 
-  // There are no TLS X86MCExprs at the moment.
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static bool classof(const MCExpr *E) {
     return E->getKind() == MCExpr::Target;
   }

llvm/lib/Target/Xtensa/MCTargetDesc/XtensaMCExpr.h

@@ -47,8 +47,6 @@ class XtensaMCExpr : public MCTargetExpr {
     return getSubExpr()->findAssociatedFragment();
   }
 
-  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
-
   static VariantKind getVariantKindForName(StringRef name);
   static StringRef getVariantKindName(VariantKind Kind);
 };