[llvm] r203745 - MC: fix possible NULL pointer dereference

[Duncan P. N. Exon Smith]

On 2014 Mar 12, at 19:09, Saleem Abdulrasool <compnerd at compnerd.org> wrote:

> Author: compnerd
> Date: Wed Mar 12 21:09:51 2014
> New Revision: 203745
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=203745&view=rev
> Log:
> MC: fix possible NULL pointer dereference
> 
> Avoid NULL pointer scenario found via clang's static analyzer.
> 
> Modified:
>    llvm/trunk/lib/MC/MCParser/AsmParser.cpp
> 
> Modified: llvm/trunk/lib/MC/MCParser/AsmParser.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCParser/AsmParser.cpp?rev=203745&r1=203744&r2=203745&view=diff
> ==============================================================================
> --- llvm/trunk/lib/MC/MCParser/AsmParser.cpp (original)
> +++ llvm/trunk/lib/MC/MCParser/AsmParser.cpp Wed Mar 12 21:09:51 2014
> @@ -2005,7 +2005,7 @@ bool AsmParser::parseMacroArguments(cons
>       if (FAI >= NParameters) {
>         Error(IDLoc,
>               "parameter named '" + FA.Name + "' does not exist for macro '" +
> -              M->Name + "'");
> +              (M ? M->Name : "<unamed>") + "'”);

Typo here: unamed should probably be spelled unnamed.

>         return true;
>       }
>       PI = FAI;
> 
> 
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