Remove DataLayout from TargetLoweringObjectFile, redirect to Module

Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: yaron.keren, rafael, llvm-commits, jholewinski

Differential Revision: http://reviews.llvm.org/D11079

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 242385

1 files changed, 16 insertions, 17 deletions

diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 2f78763..b4383cc 100644
--- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -58,9 +58,8 @@ 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();
   MCSymbolELF *Label =
@@ -72,9 +71,9 @@ 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);
@@ -282,8 +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);
@@ -350,9 +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)
@@ -589,14 +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
@@ -634,9 +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())
@@ -740,7 +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);
@@ -1043,7 +1042,7 @@ void TargetLoweringObjectFileCOFF::emitLinkerFlagsForGlobal(
     raw_string_ostream FlagOS(Flag);
     Mang.getNameWithPrefix(FlagOS, GV, false);
     FlagOS.flush();
-    if (Flag[0] == DL->getGlobalPrefix())
+    if (Flag[0] == GV->getParent()->getDataLayout().getGlobalPrefix())
       OS << Flag.substr(1);
     else
       OS << Flag;