Use the dwarf->llvm mapping to print register names in the cfi
directives.

Fixes PR9826.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132317 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp b/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp
index dd6e353..6ff4442 100644
--- a/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp
+++ b/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp
@@ -41,6 +41,10 @@
             &TM.getSubtarget<X86Subtarget>()));
 }
 
+StringRef X86ATTInstPrinter::getRegName(unsigned RegNo) const {
+  return getRegisterName(RegNo);
+}
+
 void X86ATTInstPrinter::printInst(const MCInst *MI, raw_ostream &OS) {
   // Try to print any aliases first.
   if (!printAliasInstr(MI, OS))
diff --git a/lib/Target/X86/InstPrinter/X86ATTInstPrinter.h b/lib/Target/X86/InstPrinter/X86ATTInstPrinter.h
index 8d69391..0a17c1b 100644
--- a/lib/Target/X86/InstPrinter/X86ATTInstPrinter.h
+++ b/lib/Target/X86/InstPrinter/X86ATTInstPrinter.h
@@ -26,6 +26,7 @@
 public:
   X86ATTInstPrinter(TargetMachine &TM, const MCAsmInfo &MAI);
   
+  StringRef getRegName(unsigned RegNo) const;
   virtual void printInst(const MCInst *MI, raw_ostream &OS);
   virtual StringRef getOpcodeName(unsigned Opcode) const;
 
diff --git a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
index 47253eb..bdf5af2 100644
--- a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
+++ b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
@@ -29,6 +29,10 @@
 #define GET_INSTRUCTION_NAME
 #include "X86GenAsmWriter1.inc"
 
+StringRef X86IntelInstPrinter::getRegName(unsigned RegNo) const {
+  return getRegisterName(RegNo);
+}
+
 void X86IntelInstPrinter::printInst(const MCInst *MI, raw_ostream &OS) {
   printInstruction(MI, OS);
   
diff --git a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.h b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.h
index ca99dc0..c51a210 100644
--- a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.h
+++ b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.h
@@ -27,6 +27,7 @@
   X86IntelInstPrinter(TargetMachine &TM, const MCAsmInfo &MAI)
     : MCInstPrinter(MAI) {}
 
+  StringRef getRegName(unsigned RegNo) const;
   virtual void printInst(const MCInst *MI, raw_ostream &OS);
   virtual StringRef getOpcodeName(unsigned Opcode) const;