Now that we have everything nicely factored (e.g. asmprinter is not

doing global variable classification anymore) and hookized, sink almost
all target targets global variable emission code into AsmPrinter and out
of each target.

Some notes:

1. PIC16 does completely custom and crazy stuff, so it is not changed.
2. XCore has some custom handling for extra directives.  I'll look at it next.
3. This switches linux/ppc to use .globl instead of .global.  If .globl is
   actually wrong, let me know and I'll fix it.
4. This makes linux/ppc get a lot of random cases right which were obviously
   wrong before, it is probably now a bit healthier.
5. Blackfin will probably start getting .comm and other things that it didn't
   before.  If this is undesirable, it should explicitly opt out of these
   things by clearing the relevant fields of MCAsmInfo.

This leads to a nice diffstat:
 14 files changed, 127 insertions(+), 830 deletions(-)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93858 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 82 deletions

diff --git a/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp b/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
index 0171193f12..5c3fe37d6a 100644
--- a/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
+++ b/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
@@ -71,7 +71,6 @@ namespace {
 
     void emitFunctionHeader(const MachineFunction &MF);
     bool runOnMachineFunction(MachineFunction &F);
-    void PrintGlobalVariable(const GlobalVariable* GVar);
 
     void getAnalysisUsage(AnalysisUsage &AU) const {
       AsmPrinter::getAnalysisUsage(AU);
@@ -294,87 +293,6 @@ void SystemZAsmPrinter::printRRIAddrOperand(const MachineInstr *MI, int OpNum,
     assert(!Index.getReg() && "Should allocate base register first!");
 }
 
-void SystemZAsmPrinter::PrintGlobalVariable(const GlobalVariable* GVar) {
-  const TargetData *TD = TM.getTargetData();
-
-  if (!GVar->hasInitializer())
-    return;   // External global require no code
-
-  // Check to see if this is a special global used by LLVM, if so, emit it.
-  if (EmitSpecialLLVMGlobal(GVar))
-    return;
-
-  MCSymbol *GVarSym = GetGlobalValueSymbol(GVar);
-  Constant *C = GVar->getInitializer();
-  unsigned Size = TD->getTypeAllocSize(C->getType());
-  unsigned Align = std::max(1U, TD->getPreferredAlignmentLog(GVar));
-
-  printVisibility(GVarSym, GVar->getVisibility());
-
-  O << "\t.type\t" << *GVarSym << ",@object\n";
-
-  OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(GVar, Mang,
-                                                                  TM));
-
-  if (C->isNullValue() && !GVar->hasSection() &&
-      !GVar->isThreadLocal() &&
-      (GVar->hasLocalLinkage() || GVar->hasCommonLinkage())) {
-
-    if (Size == 0) Size = 1;   // .comm Foo, 0 is undefined, avoid it.
-
-    if (GVar->hasLocalLinkage())
-      O << "\t.local\t" << *GVarSym << '\n';
-
-    O << MAI->getCOMMDirective() << *GVarSym << ',' << Size;
-    if (MAI->getCOMMDirectiveTakesAlignment())
-      O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
-
-    if (VerboseAsm) {
-      O << "\t\t" << MAI->getCommentString() << ' ';
-      WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
-    }
-    O << '\n';
-    return;
-  }
-
-  switch (GVar->getLinkage()) {
-  case GlobalValue::CommonLinkage:
-  case GlobalValue::LinkOnceAnyLinkage:
-  case GlobalValue::LinkOnceODRLinkage:
-  case GlobalValue::WeakAnyLinkage:
-  case GlobalValue::WeakODRLinkage:
-    O << "\t.weak\t" << *GVarSym << '\n';
-    break;
-  case GlobalValue::DLLExportLinkage:
-  case GlobalValue::AppendingLinkage:
-    // FIXME: appending linkage variables should go into a section of
-    // their name or something.  For now, just emit them as external.
-  case GlobalValue::ExternalLinkage:
-    // If external or appending, declare as a global symbol
-    O << "\t.globl " << *GVarSym << '\n';
-    // FALL THROUGH
-  case GlobalValue::PrivateLinkage:
-  case GlobalValue::LinkerPrivateLinkage:
-  case GlobalValue::InternalLinkage:
-     break;
-  default:
-    assert(0 && "Unknown linkage type!");
-  }
-
-  // Use 16-bit alignment by default to simplify bunch of stuff
-  EmitAlignment(Align, GVar, 1);
-  O << *GVarSym << ":";
-  if (VerboseAsm) {
-    O << "\t\t\t\t" << MAI->getCommentString() << ' ';
-    WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
-  }
-  O << '\n';
-  if (MAI->hasDotTypeDotSizeDirective())
-    O << "\t.size\t" << *GVarSym << ", " << Size << '\n';
-
-  EmitGlobalConstant(C);
-}
-
 // Force static initialization.
 extern "C" void LLVMInitializeSystemZAsmPrinter() {
   RegisterAsmPrinter<SystemZAsmPrinter> X(TheSystemZTarget);