r188464 - [Mips][msa] Add support for half

[Daniel Sanders]

Hi,

Jack has one more patch to review and commit on my behalf which adds six builtins for conversions between floating point vectors. Three of these builtins depend on the half-precision type added in this commit.
My test plan was that after this commit, nothing should break. The next commit would then add the builtins that depended on it along with a testcase for those builtins.
Is it preferable to do this kind of thing in a single commit?

I'll apply for commit access in the morning.

> -----Original Message-----
> From: cfe-commits-bounces at cs.uiuc.edu [mailto:cfe-commits-
> bounces at cs.uiuc.edu] On Behalf Of Rafael Espíndola
> Sent: 15 August 2013 16:24
> To: Jack Carter
> Cc: llvm cfe
> Subject: Re: r188464 - [Mips][msa] Add support for half
> 
> testcase?
> 
> Please make sure Daniel Sanders applies for commit access.
> 
> On 15 August 2013 08:16, Jack Carter <jack.carter at imgtec.com> wrote:
> > Author: jacksprat
> > Date: Thu Aug 15 10:16:57 2013
> > New Revision: 188464
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=188464&view=rev
> > Log:
> > [Mips][msa] Add support for half
> >
> > Add support for half (a.k.a. __fp16) in builtin descriptions.
> > The second argument to BUILTIN() now accepts 'h' to represent half.
> >
> > Patch by Daniel Sanders
> >
> > Modified:
> >     cfe/trunk/include/clang/Basic/Builtins.def
> >     cfe/trunk/lib/AST/ASTContext.cpp
> >
> > Modified: cfe/trunk/include/clang/Basic/Builtins.def
> > URL: http://llvm.org/viewvc/llvm-
> project/cfe/trunk/include/clang/Basic/Builtins.def?rev=188464&r1=188463&r
> 2=188464&view=diff
> >
> ==========================================================
> ====================
> > --- cfe/trunk/include/clang/Basic/Builtins.def (original)
> > +++ cfe/trunk/include/clang/Basic/Builtins.def Thu Aug 15 10:16:57 2013
> > @@ -25,6 +25,7 @@
> >  //  c -> char
> >  //  s -> short
> >  //  i -> int
> > +//  h -> half
> >  //  f -> float
> >  //  d -> double
> >  //  z -> size_t
> >
> > Modified: cfe/trunk/lib/AST/ASTContext.cpp
> > URL: http://llvm.org/viewvc/llvm-
> project/cfe/trunk/lib/AST/ASTContext.cpp?rev=188464&r1=188463&r2=1884
> 64&view=diff
> >
> ==========================================================
> ====================
> > --- cfe/trunk/lib/AST/ASTContext.cpp (original)
> > +++ cfe/trunk/lib/AST/ASTContext.cpp Thu Aug 15 10:16:57 2013
> > @@ -7552,6 +7552,11 @@ static QualType DecodeTypeFromStr(const
> >             "Bad modifiers used with 'v'!");
> >      Type = Context.VoidTy;
> >      break;
> > +  case 'h':
> > +    assert(HowLong == 0 && !Signed && !Unsigned &&
> > +           "Bad modifiers used with 'f'!");
> > +    Type = Context.HalfTy;
> > +    break;
> >    case 'f':
> >      assert(HowLong == 0 && !Signed && !Unsigned &&
> >             "Bad modifiers used with 'f'!");
> >
> >
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