[llvm] r174328 - Fix some abuses of StringRef

[Tim Northover]

Author: tnorthover
Date: Mon Feb  4 09:44:38 2013
New Revision: 174328

URL: http://llvm.org/viewvc/llvm-project?rev=174328&view=rev
Log:
Fix some abuses of StringRef

We were taking a StringRef to a temporary result, which can go horribly wrong.

Modified:
    llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

Modified: llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp?rev=174328&r1=174327&r2=174328&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp Mon Feb  4 09:44:38 2013
@@ -1207,8 +1207,8 @@ AArch64AsmParser::ParseRelocPrefix(AArch
     return MatchOperand_ParseFail;
   }
 
-  StringRef lowerCase = Parser.getTok().getIdentifier().lower();
-  RefKind = StringSwitch<AArch64MCExpr::VariantKind>(lowerCase)
+  std::string LowerCase = Parser.getTok().getIdentifier().lower();
+  RefKind = StringSwitch<AArch64MCExpr::VariantKind>(LowerCase)
     .Case("got",              AArch64MCExpr::VK_AARCH64_GOT)
     .Case("got_lo12",         AArch64MCExpr::VK_AARCH64_GOT_LO12)
     .Case("lo12",             AArch64MCExpr::VK_AARCH64_LO12)
@@ -1343,7 +1343,8 @@ AArch64AsmParser::ParseCRxOperand(
     return MatchOperand_ParseFail;
   }
 
-  StringRef Tok = Parser.getTok().getIdentifier().lower();
+  std::string LowerTok = Parser.getTok().getIdentifier().lower();
+  StringRef Tok(LowerTok);
   if (Tok[0] != 'c') {
     Error(S, "Expected cN operand where 0 <= N <= 15");
     return MatchOperand_ParseFail;