1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.cpp b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
index dec06bc9cc8..c00011288a6 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
@@ -78,6 +78,7 @@ public:
 
   bool parse(MachineInstr *&MI);
   bool parseMBB(MachineBasicBlock *&MBB);
+  bool parseNamedRegister(unsigned &Reg);
 
   bool parseRegister(unsigned &Reg);
   bool parseRegisterFlag(unsigned &Flags);
@@ -215,6 +216,18 @@ bool MIParser::parseMBB(MachineBasicBlock *&MBB) {
   return false;
 }
 
+bool MIParser::parseNamedRegister(unsigned &Reg) {
+  lex();
+  if (Token.isNot(MIToken::NamedRegister))
+    return error("expected a named register");
+  if (parseRegister(Reg))
+    return 0;
+  lex();
+  if (Token.isNot(MIToken::Eof))
+    return error("expected end of string after the register reference");
+  return false;
+}
+
 static const char *printImplicitRegisterFlag(const MachineOperand &MO) {
   assert(MO.isImplicit());
   return MO.isDef() ? "implicit-def" : "implicit";
@@ -583,3 +596,11 @@ bool llvm::parseMBBReference(MachineBasicBlock *&MBB, SourceMgr &SM,
                              const SlotMapping &IRSlots, SMDiagnostic &Error) {
   return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseMBB(MBB);
 }
+
+bool llvm::parseNamedRegisterReference(unsigned &Reg, SourceMgr &SM,
+                                       MachineFunction &MF, StringRef Src,
+                                       const PerFunctionMIParsingState &PFS,
+                                       const SlotMapping &IRSlots,
+                                       SMDiagnostic &Error) {
+  return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseNamedRegister(Reg);
+}