eliminate the "MBBLabel" MCOperand type, and just use a MCSymbol for

MBB labels like everything else.

llvm-svn: 81628

4 files changed, 12 insertions, 11 deletions

diff --git a/llvm/lib/MC/MCInst.cpp b/llvm/lib/MC/MCInst.cpp
index f19056bc9ad..d05031870ad 100644
--- a/llvm/lib/MC/MCInst.cpp
+++ b/llvm/lib/MC/MCInst.cpp
@@ -21,9 +21,6 @@ void MCOperand::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
     OS << "Reg:" << getReg();
   else if (isImm())
     OS << "Imm:" << getImm();
-  else if (isMBBLabel())
-    OS << "MBB:(" << getMBBLabelFunction() << ","
-       << getMBBLabelBlock() << ")";
   else if (isExpr()) {
     OS << "Expr:(";
     getExpr()->print(OS, MAI);
diff --git a/llvm/lib/Target/X86/AsmPrinter/X86ATTInstPrinter.cpp b/llvm/lib/Target/X86/AsmPrinter/X86ATTInstPrinter.cpp
index 9841d708d86..2c0b5689ae7 100644
--- a/llvm/lib/Target/X86/AsmPrinter/X86ATTInstPrinter.cpp
+++ b/llvm/lib/Target/X86/AsmPrinter/X86ATTInstPrinter.cpp
@@ -58,11 +58,6 @@ void X86ATTAsmPrinter::print_pcrel_imm(const MCInst *MI, unsigned OpNo) {
     O << Op.getImm();
   else if (Op.isExpr())
     Op.getExpr()->print(O, MAI);
-  else if (Op.isMBBLabel())
-    // FIXME: Keep in sync with printBasicBlockLabel.  printBasicBlockLabel
-    // should eventually call into this code, not the other way around.
-    O << MAI->getPrivateGlobalPrefix() << "BB" << Op.getMBBLabelFunction()
-      << '_' << Op.getMBBLabelBlock();
   else
     llvm_unreachable("Unknown pcrel immediate operand");
 }
diff --git a/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp b/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
index ed8207415f5..9946506441b 100644
--- a/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
+++ b/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
@@ -45,6 +45,16 @@ MCSymbol *X86MCInstLower::GetPICBaseSymbol() const {
   return Ctx.GetOrCreateSymbol(Name.str());
 }
 
+MCOperand X86MCInstLower::LowerMBBOperand(const MachineOperand &MO) const {
+  SmallString<60> Name;
+  raw_svector_ostream(Name) << AsmPrinter.MAI->getPrivateGlobalPrefix() << "BB"
+      << AsmPrinter.getFunctionNumber() << '_' << MO.getMBB()->getNumber();
+
+  MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
+  return MCOperand::CreateExpr(MCSymbolRefExpr::Create(Sym, Ctx));
+}
+
+
 
 /// LowerGlobalAddressOperand - Lower an MO_GlobalAddress operand to an
 /// MCOperand.
@@ -331,9 +341,7 @@ void X86MCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
       MCOp = MCOperand::CreateImm(MO.getImm());
       break;
     case MachineOperand::MO_MachineBasicBlock:
-// FIXME: Kill MBBLabel operand type!
-      MCOp = MCOperand::CreateMBBLabel(AsmPrinter.getFunctionNumber(), 
-                                       MO.getMBB()->getNumber());
+      MCOp = LowerMBBOperand(MO);
       break;
     case MachineOperand::MO_GlobalAddress:
       MCOp = LowerSymbolOperand(MO, GetGlobalAddressSymbol(MO));
diff --git a/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.h b/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.h
index de85755d723..b7b2bb0eb4c 100644
--- a/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.h
+++ b/llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.h
@@ -37,6 +37,7 @@ public:
 private:
   const X86Subtarget &getSubtarget() const;
   
+  MCOperand LowerMBBOperand(const MachineOperand &MO) const;
   MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const;
   MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;
   MCSymbol *GetJumpTableSymbol(const MachineOperand &MO) const;