Remove DataLayout from TargetLoweringObjectFile, redirect to Module

[oota-llvm.git] / lib / CodeGen / TargetLoweringObjectFileImpl.cpp

diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 49379ba8072030d83357f919b7bc8a39ee03a040..b4383cca1b9b9eb03f9e30423ea174bc698d51da 100644 (file)
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -30,7 +30,7 @@
 #include "llvm/MC/MCSectionELF.h"
 #include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
 #include "llvm/MC/MCValue.h"
 #include "llvm/Support/Dwarf.h"
 #include "llvm/Support/ELF.h"
@@ -58,12 +58,12 @@ MCSymbol *TargetLoweringObjectFileELF::getCFIPersonalitySymbol(
   report_fatal_error("We do not support this DWARF encoding yet!");
 }
 
-void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,
-                                                       const TargetMachine &TM,
-                                                       const MCSymbol *Sym) const {
+void TargetLoweringObjectFileELF::emitPersonalityValue(
+    MCStreamer &Streamer, const DataLayout &DL, const MCSymbol *Sym) const {
   SmallString<64> NameData("DW.ref.");
   NameData += Sym->getName();
-  MCSymbol *Label = getContext().getOrCreateSymbol(NameData);
+  MCSymbolELF *Label =
+      cast<MCSymbolELF>(getContext().getOrCreateSymbol(NameData));
   Streamer.EmitSymbolAttribute(Label, MCSA_Hidden);
   Streamer.EmitSymbolAttribute(Label, MCSA_Weak);
   StringRef Prefix = ".data.";
@@ -71,12 +71,12 @@ void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,
   unsigned Flags = ELF::SHF_ALLOC | ELF::SHF_WRITE | ELF::SHF_GROUP;
   MCSection *Sec = getContext().getELFSection(NameData, ELF::SHT_PROGBITS,
                                               Flags, 0, Label->getName());
-  unsigned Size = TM.getDataLayout()->getPointerSize();
+  unsigned Size = DL.getPointerSize();
   Streamer.SwitchSection(Sec);
-  Streamer.EmitValueToAlignment(TM.getDataLayout()->getPointerABIAlignment());
+  Streamer.EmitValueToAlignment(DL.getPointerABIAlignment());
   Streamer.EmitSymbolAttribute(Label, MCSA_ELF_TypeObject);
   const MCExpr *E = MCConstantExpr::create(Size, getContext());
-  Streamer.EmitELFSize(Label, E);
+  Streamer.emitELFSize(Label, E);
   Streamer.EmitLabel(Label);
 
   Streamer.EmitSymbolValue(Sym, Size);
@@ -281,8 +281,8 @@ selectELFSectionForGlobal(MCContext &Ctx, const GlobalValue *GV,
     // We also need alignment here.
     // FIXME: this is getting the alignment of the character, not the
     // alignment of the global!
-    unsigned Align =
-        TM.getDataLayout()->getPreferredAlignment(cast<GlobalVariable>(GV));
+    unsigned Align = GV->getParent()->getDataLayout().getPreferredAlignment(
+        cast<GlobalVariable>(GV));
 
     std::string SizeSpec = ".rodata.str" + utostr(EntrySize) + ".";
     Name = SizeSpec + utostr(Align);
@@ -349,9 +349,8 @@ bool TargetLoweringObjectFileELF::shouldPutJumpTableInFunctionSection(
 
 /// Given a mergeable constant with the specified size and relocation
 /// information, return a section that it should be placed in.
-MCSection *
-TargetLoweringObjectFileELF::getSectionForConstant(SectionKind Kind,
-                                                   const Constant *C) const {
+MCSection *TargetLoweringObjectFileELF::getSectionForConstant(
+    const DataLayout &DL, SectionKind Kind, const Constant *C) const {
   if (Kind.isMergeableConst4() && MergeableConst4Section)
     return MergeableConst4Section;
   if (Kind.isMergeableConst8() && MergeableConst8Section)
@@ -439,16 +438,6 @@ TargetLoweringObjectFileMachO::TargetLoweringObjectFileMachO()
   SupportIndirectSymViaGOTPCRel = true;
 }
 
-/// getDepLibFromLinkerOpt - Extract the dependent library name from a linker
-/// option string. Returns StringRef() if the option does not specify a library.
-StringRef TargetLoweringObjectFileMachO::
-getDepLibFromLinkerOpt(StringRef LinkerOption) const {
-  const char *LibCmd = "-l";
-  if (LinkerOption.startswith(LibCmd))
-    return LinkerOption.substr(strlen(LibCmd));
-  return StringRef();
-}
-
 /// emitModuleFlags - Perform code emission for module flags.
 void TargetLoweringObjectFileMachO::
 emitModuleFlags(MCStreamer &Streamer,
@@ -598,14 +587,16 @@ MCSection *TargetLoweringObjectFileMachO::SelectSectionForGlobal(
 
   // FIXME: Alignment check should be handled by section classifier.
   if (Kind.isMergeable1ByteCString() &&
-      TM.getDataLayout()->getPreferredAlignment(cast<GlobalVariable>(GV)) < 32)
+      GV->getParent()->getDataLayout().getPreferredAlignment(
+          cast<GlobalVariable>(GV)) < 32)
     return CStringSection;
 
   // Do not put 16-bit arrays in the UString section if they have an
   // externally visible label, this runs into issues with certain linker
   // versions.
   if (Kind.isMergeable2ByteCString() && !GV->hasExternalLinkage() &&
-      TM.getDataLayout()->getPreferredAlignment(cast<GlobalVariable>(GV)) < 32)
+      GV->getParent()->getDataLayout().getPreferredAlignment(
+          cast<GlobalVariable>(GV)) < 32)
     return UStringSection;
 
   // With MachO only variables whose corresponding symbol starts with 'l' or
@@ -643,9 +634,8 @@ MCSection *TargetLoweringObjectFileMachO::SelectSectionForGlobal(
   return DataSection;
 }
 
-MCSection *
-TargetLoweringObjectFileMachO::getSectionForConstant(SectionKind Kind,
-                                                     const Constant *C) const {
+MCSection *TargetLoweringObjectFileMachO::getSectionForConstant(
+    const DataLayout &DL, SectionKind Kind, const Constant *C) const {
   // If this constant requires a relocation, we have to put it in the data
   // segment, not in the text segment.
   if (Kind.isDataRel() || Kind.isReadOnlyWithRel())
@@ -749,7 +739,7 @@ const MCExpr *TargetLoweringObjectFileMachO::getIndirectSymViaGOTPCRel(
   // non_lazy_ptr stubs.
   SmallString<128> Name;
   StringRef Suffix = "$non_lazy_ptr";
-  Name += DL->getPrivateGlobalPrefix();
+  Name += MMI->getModule()->getDataLayout().getPrivateGlobalPrefix();
   Name += Sym->getName();
   Name += Suffix;
   MCSymbol *Stub = Ctx.getOrCreateSymbol(Name);
@@ -849,8 +839,6 @@ static int getSelectionForCOFF(const GlobalValue *GV) {
     } else {
       return COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE;
     }
-  } else if (GV->isWeakForLinker()) {
-    return COFF::IMAGE_COMDAT_SELECT_ANY;
   }
   return 0;
 }
@@ -989,14 +977,6 @@ MCSection *TargetLoweringObjectFileCOFF::getSectionForJumpTable(
                                      COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE);
 }
 
-StringRef TargetLoweringObjectFileCOFF::
-getDepLibFromLinkerOpt(StringRef LinkerOption) const {
-  const char *LibCmd = "/DEFAULTLIB:";
-  if (LinkerOption.startswith(LibCmd))
-    return LinkerOption.substr(strlen(LibCmd));
-  return StringRef();
-}
-
 void TargetLoweringObjectFileCOFF::
 emitModuleFlags(MCStreamer &Streamer,
                 ArrayRef<Module::ModuleFlagEntry> ModuleFlags,
@@ -1044,3 +1024,36 @@ MCSection *TargetLoweringObjectFileCOFF::getStaticDtorSection(
   return getContext().getAssociativeCOFFSection(
       cast<MCSectionCOFF>(StaticDtorSection), KeySym);
 }
+
+void TargetLoweringObjectFileCOFF::emitLinkerFlagsForGlobal(
+    raw_ostream &OS, const GlobalValue *GV, const Mangler &Mang) const {
+  if (!GV->hasDLLExportStorageClass() || GV->isDeclaration())
+    return;
+
+  const Triple &TT = getTargetTriple();
+
+  if (TT.isKnownWindowsMSVCEnvironment())
+    OS << " /EXPORT:";
+  else
+    OS << " -export:";
+
+  if (TT.isWindowsGNUEnvironment() || TT.isWindowsCygwinEnvironment()) {
+    std::string Flag;
+    raw_string_ostream FlagOS(Flag);
+    Mang.getNameWithPrefix(FlagOS, GV, false);
+    FlagOS.flush();
+    if (Flag[0] == GV->getParent()->getDataLayout().getGlobalPrefix())
+      OS << Flag.substr(1);
+    else
+      OS << Flag;
+  } else {
+    Mang.getNameWithPrefix(OS, GV, false);
+  }
+
+  if (!GV->getValueType()->isFunctionTy()) {
+    if (TT.isKnownWindowsMSVCEnvironment())
+      OS << ",DATA";
+    else
+      OS << ",data";
+  }
+}