Index: lib/Target/Mips/AsmParser/MipsAsmParser.cpp
===================================================================
--- lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -185,8 +185,6 @@
     return STI.getFeatureBits() & Mips::FeatureMicroMips;
   }
 
-  bool parseRegister(unsigned &RegNum);
-
   bool eatComma(StringRef ErrorStr);
 
   int matchCPURegisterName(StringRef Symbol);
@@ -2320,25 +2318,6 @@
   return false;
 }
 
-bool MipsAsmParser::parseRegister(unsigned &RegNum) {
-  if (!getLexer().is(AsmToken::Dollar))
-    return false;
-
-  Parser.Lex();
-
-  const AsmToken &Reg = Parser.getTok();
-  if (Reg.is(AsmToken::Identifier)) {
-    RegNum = matchCPURegisterName(Reg.getIdentifier());
-  } else if (Reg.is(AsmToken::Integer)) {
-    RegNum = Reg.getIntVal();
-  } else {
-    return false;
-  }
-
-  Parser.Lex();
-  return true;
-}
-
 bool MipsAsmParser::eatComma(StringRef ErrorStr) {
   if (getLexer().isNot(AsmToken::Comma)) {
     SMLoc Loc = getLexer().getLoc();
@@ -2379,23 +2358,50 @@
   unsigned Save;
   bool SaveIsReg = true;
 
-  if (!parseRegister(FuncReg))
-    return reportParseError("expected register containing function address");
-  FuncReg = getGPR(FuncReg);
+  SmallVector<MCParsedAsmOperand *, 1> TmpReg;
+  OperandMatchResultTy ResTy = ParseAnyRegister(TmpReg);
+  if (ResTy == MatchOperand_NoMatch) {
+    reportParseError("expected register containing function address");
+    Parser.eatToEndOfStatement();
+    return false;
+  }
+
+  std::unique_ptr<const MipsOperand> FuncRegOpnd(
+      static_cast<MipsOperand *>(TmpReg[0]));
+  if (!FuncRegOpnd->isGPRAsmReg()) {
+    reportParseError(FuncRegOpnd->getStartLoc(), "invalid register");
+    Parser.eatToEndOfStatement();
+    return false;
+  }
+
+  FuncReg = FuncRegOpnd->getGPR32Reg();
+  TmpReg.clear();
 
   if (!eatComma("expected comma parsing directive"))
     return true;
 
-  if (!parseRegister(Save)) {
+  ResTy = ParseAnyRegister(TmpReg);
+  if (ResTy == MatchOperand_NoMatch) {
     const AsmToken &Tok = Parser.getTok();
     if (Tok.is(AsmToken::Integer)) {
       Save = Tok.getIntVal();
       SaveIsReg = false;
       Parser.Lex();
-    } else
-      return reportParseError("expected save register or stack offset");
-  } else
-    Save = getGPR(Save);
+    } else {
+      reportParseError("expected save register or stack offset");
+      Parser.eatToEndOfStatement();
+      return false;
+    }
+  } else {
+    std::unique_ptr<const MipsOperand> SaveOpnd(
+        static_cast<MipsOperand *>(TmpReg[0]));
+    if (!SaveOpnd->isGPRAsmReg()) {
+      reportParseError(SaveOpnd->getStartLoc(), "invalid register");
+      Parser.eatToEndOfStatement();
+      return false;
+    }
+    Save = SaveOpnd->getGPR32Reg();
+  }
 
   if (!eatComma("expected comma parsing directive"))
     return true;
Index: test/MC/Mips/cpsetup-bad.s
===================================================================
--- /dev/null
+++ test/MC/Mips/cpsetup-bad.s
@@ -0,0 +1,14 @@
+# RUN: not llvm-mc %s -triple mips64-unknown-unknown 2>%t1
+# RUN:   FileCheck %s < %t1 -check-prefix=ASM
+
+        .text
+        .option pic2
+t1:
+        .cpsetup $bar, 8, __cerror
+# ASM: :[[@LINE-1]]:18: error: expected register containing function address
+        .cpsetup $33, 8, __cerror
+# ASM: :[[@LINE-1]]:18: error: invalid register
+        .cpsetup $31, foo, __cerror
+# ASM: :[[@LINE-1]]:23: error: expected save register or stack offset
+        .cpsetup $31, $32, __cerror
+# ASM: :[[@LINE-1]]:23: error: invalid register