X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCObjectStreamer.cpp;h=a04ae0812a3eca20ccc8acd9f876b572d4b814cc;hb=559c277aa9242dd5b32d2f2ccc353d938f886ee9;hp=cd18b0071833b86d2da089027ab6b1d13da40677;hpb=e8cfbd843d737e1f95c3032c7670c2be3838a6f6;p=oota-llvm.git

diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp
index cd18b007183..a04ae0812a3 100644
--- a/lib/MC/MCObjectStreamer.cpp
+++ b/lib/MC/MCObjectStreamer.cpp
@@ -17,11 +17,10 @@
 #include "llvm/MC/MCDwarf.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/TargetAsmBackend.h"
-#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/MC/MCAsmBackend.h"
 using namespace llvm;
 
-MCObjectStreamer::MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
+MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
                                    raw_ostream &OS, MCCodeEmitter *Emitter_)
   : MCStreamer(Context),
     Assembler(new MCAssembler(Context, TAB,
@@ -31,7 +30,7 @@ MCObjectStreamer::MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
 {
 }
 
-MCObjectStreamer::MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
+MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
                                    raw_ostream &OS, MCCodeEmitter *Emitter_,
                                    MCAssembler *_Assembler)
   : MCStreamer(Context), Assembler(_Assembler), CurSectionData(0)
@@ -90,7 +89,7 @@ const MCExpr *MCObjectStreamer::AddValueSymbols(const MCExpr *Value) {
 }
 
 void MCObjectStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
-                                     bool isPCRel, unsigned AddrSpace) {
+                                     unsigned AddrSpace) {
   assert(AddrSpace == 0 && "Address space must be 0!");
   MCDataFragment *DF = getOrCreateDataFragment();
 
@@ -102,15 +101,12 @@ void MCObjectStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
   }
   DF->addFixup(MCFixup::Create(DF->getContents().size(),
                                Value,
-                               MCFixup::getKindForSize(Size, isPCRel)));
+                               MCFixup::getKindForSize(Size, false)));
   DF->getContents().resize(DF->getContents().size() + Size, 0);
 }
 
 void MCObjectStreamer::EmitLabel(MCSymbol *Symbol) {
-  assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
-  assert(getCurrentSection() && "Cannot emit before setting section!");
-
-  Symbol->setSection(*getCurrentSection());
+  MCStreamer::EmitLabel(Symbol);
 
   MCSymbolData &SD = getAssembler().getOrCreateSymbolData(*Symbol);
 
@@ -130,6 +126,7 @@ void MCObjectStreamer::EmitULEB128Value(const MCExpr *Value) {
     EmitULEB128IntValue(IntValue);
     return;
   }
+  Value = ForceExpAbs(Value);
   new MCLEBFragment(*Value, false, getCurrentSectionData());
 }
 
@@ -139,6 +136,7 @@ void MCObjectStreamer::EmitSLEB128Value(const MCExpr *Value) {
     EmitSLEB128IntValue(IntValue);
     return;
   }
+  Value = ForceExpAbs(Value);
   new MCLEBFragment(*Value, true, getCurrentSectionData());
 }
 
@@ -196,33 +194,11 @@ void MCObjectStreamer::EmitInstToFragment(const MCInst &Inst) {
   IF->getCode().append(Code.begin(), Code.end());
 }
 
-static const MCExpr *BuildSymbolDiff(MCContext &Context,
-                                     const MCSymbol *A, const MCSymbol *B) {
-  MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
-  const MCExpr *ARef =
-    MCSymbolRefExpr::Create(A, Variant, Context);
-  const MCExpr *BRef =
-    MCSymbolRefExpr::Create(B, Variant, Context);
-  const MCExpr *AddrDelta =
-    MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
-  return AddrDelta;
-}
-
-static const MCExpr *ForceExpAbs(MCObjectStreamer *Streamer,
-                                  MCContext &Context, const MCExpr* Expr) {
- if (Context.getAsmInfo().hasAggressiveSymbolFolding())
-   return Expr;
-
- MCSymbol *ABS = Context.CreateTempSymbol();
- Streamer->EmitAssignment(ABS, Expr);
- return MCSymbolRefExpr::Create(ABS, Context);
-}
-
 void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
                                                 const MCSymbol *LastLabel,
-                                                const MCSymbol *Label) {
+                                                const MCSymbol *Label,
+                                                unsigned PointerSize) {
   if (!LastLabel) {
-    int PointerSize = getContext().getTargetAsmInfo().getPointerSize();
     EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
     return;
   }
@@ -232,7 +208,7 @@ void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
     MCDwarfLineAddr::Emit(this, LineDelta, Res);
     return;
   }
-  AddrDelta = ForceExpAbs(this, getContext(), AddrDelta);
+  AddrDelta = ForceExpAbs(AddrDelta);
   new MCDwarfLineAddrFragment(LineDelta, *AddrDelta, getCurrentSectionData());
 }
 
@@ -244,7 +220,7 @@ void MCObjectStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
     MCDwarfFrameEmitter::EmitAdvanceLoc(*this, Res);
     return;
   }
-  AddrDelta = ForceExpAbs(this, getContext(), AddrDelta);
+  AddrDelta = ForceExpAbs(AddrDelta);
   new MCDwarfCallFrameFragment(*AddrDelta, getCurrentSectionData());
 }