change the LabelSDNode to be EHLabelSDNode and make it hold
an MCSymbol.  Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID.  Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98463 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86CodeEmitter.cpp b/lib/Target/X86/X86CodeEmitter.cpp
index 2267752..d5ecd3b 100644
--- a/lib/Target/X86/X86CodeEmitter.cpp
+++ b/lib/Target/X86/X86CodeEmitter.cpp
@@ -603,10 +603,13 @@
         llvm_report_error("JIT does not support inline asm!");
       break;
     case TargetOpcode::DBG_LABEL:
-    case TargetOpcode::EH_LABEL:
     case TargetOpcode::GC_LABEL:
       MCE.emitLabel(MMI->getLabelSym(MI.getOperand(0).getImm()));
       break;
+    case TargetOpcode::EH_LABEL:
+      MCE.emitLabel(MI.getOperand(0).getMCSymbol());
+      break;
+        
     case TargetOpcode::IMPLICIT_DEF:
     case TargetOpcode::KILL:
     case X86::FP_REG_KILL: