[MC] Pass through .code16/32/64 and .syntax unified for COFF

These flags should simply be passed through to the target, which will do
the right thing. Add an MC/X86 test that uses these directives with the
three primary object file formats and shows that they disassemble the
same everywhere.

There is a missing test for .code32 on Windows ARM, since I'm not sure
exactly how to construct one.

Fixes PR43203

llvm-svn: 370805

1 files changed, 0 insertions, 10 deletions

diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMWinCOFFStreamer.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMWinCOFFStreamer.cpp
index 2e816bea5e9..b3c8146a9bd 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMWinCOFFStreamer.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMWinCOFFStreamer.cpp
@@ -22,20 +22,10 @@ public:
                      std::unique_ptr<MCObjectWriter> OW)
       : MCWinCOFFStreamer(C, std::move(AB), std::move(CE), std::move(OW)) {}
 
-  void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
   void EmitThumbFunc(MCSymbol *Symbol) override;
   void FinishImpl() override;
 };
 
-void ARMWinCOFFStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
-  switch (Flag) {
-  default: llvm_unreachable("not implemented");
-  case MCAF_SyntaxUnified:
-  case MCAF_Code16:
-    break;
-  }
-}
-
 void ARMWinCOFFStreamer::EmitThumbFunc(MCSymbol *Symbol) {
   getAssembler().setIsThumbFunc(Symbol);
 }