Second try at making direct object emission produce the same results

as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

llvm-svn: 121006

1 files changed, 0 insertions, 34 deletions

diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index ab807edd9ea..ce85e462b3d 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -512,32 +512,6 @@ void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size,
   EmitValue(MCConstantExpr::Create(Value, getContext()), Size, AddrSpace);
 }
 
-static bool hasSymbolDifference(const MCExpr *Value) {
-  switch (Value->getKind()) {
-  case MCExpr::Target: llvm_unreachable("Can't handle target exprs yet!");
-  case MCExpr::Constant:
-  case MCExpr::SymbolRef:
-    return false;
-  case MCExpr::Unary:
-    return hasSymbolDifference(cast<MCUnaryExpr>(Value)->getSubExpr());
-  case MCExpr::Binary: {
-    const MCBinaryExpr *BE = cast<MCBinaryExpr>(Value);
-    if (BE->getOpcode() == MCBinaryExpr::Sub &&
-	BE->getLHS()->getKind() == MCExpr::SymbolRef &&
-	BE->getRHS()->getKind() == MCExpr::SymbolRef)
-      return true;
-    return hasSymbolDifference(BE->getLHS()) ||
-      hasSymbolDifference(BE->getRHS());
-  }
-  }
-  llvm_unreachable("Switch covers all cases");
-}
-
-bool MCAsmStreamer::needsSet(const MCExpr *Value) {
-  return getContext().getAsmInfo().needsSetToChangeDiffSize() &&
-    hasSymbolDifference(Value);
-}
-
 void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
                               unsigned AddrSpace) {
   assert(CurSection && "Cannot emit contents before setting section!");
@@ -565,14 +539,6 @@ void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
   }
 
   assert(Directive && "Invalid size for machine code value!");
-  if (needsSet(Value)) {
-    MCSymbol *SetLabel = getContext().CreateTempSymbol();
-    EmitAssignment(SetLabel, Value);
-    OS << Directive << *SetLabel;
-    EmitEOL();
-    return;
-  }
-
   OS << Directive << *Value;
   EmitEOL();
 }