[ARM] Move MCStreamer::emitThumbFunc to ARMTargetStreamer

MCStreamer should not declare arch-specific functions. Such functions
should go to MCTargetStreamer.

Move MCMachOStreamer::emitThumbFunc to ARMTargetMachOStreamer, which is
a new subclass of ARMTargetStreamer. (The new class is just placed in
ARMMachObjectWriter.cpp. The conventional split like
ARMELFObjectWriter.cpp/ARMELFObjectWriter.cpp is overkill.)

`emitCFILabel`, called by ARMWinCOFFStreamer.cpp, has to be made public.

Pull Request: https://github.com/llvm/llvm-project/pull/126199

1 files changed, 0 insertions, 8 deletions

diff --git a/llvm/lib/MC/MCMachOStreamer.cpp b/llvm/lib/MC/MCMachOStreamer.cpp
index aa79d1b..25352a0 100644
--- a/llvm/lib/MC/MCMachOStreamer.cpp
+++ b/llvm/lib/MC/MCMachOStreamer.cpp
@@ -99,7 +99,6 @@ public:
   void emitDarwinTargetVariantBuildVersion(unsigned Platform, unsigned Major,
                                            unsigned Minor, unsigned Update,
                                            VersionTuple SDKVersion) override;
-  void emitThumbFunc(MCSymbol *Func) override;
   bool emitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
   void emitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
   void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
@@ -269,13 +268,6 @@ void MCMachOStreamer::emitDarwinTargetVariantBuildVersion(
                                            Minor, Update, SDKVersion);
 }
 
-void MCMachOStreamer::emitThumbFunc(MCSymbol *Symbol) {
-  // Remember that the function is a thumb function. Fixup and relocation
-  // values will need adjusted.
-  getAssembler().setIsThumbFunc(Symbol);
-  cast<MCSymbolMachO>(Symbol)->setThumbFunc();
-}
-
 bool MCMachOStreamer::emitSymbolAttribute(MCSymbol *Sym,
                                           MCSymbolAttr Attribute) {
   MCSymbolMachO *Symbol = cast<MCSymbolMachO>(Sym);