[cfe-commits] r168856 - in /cfe/trunk: include/clang/Basic/DiagnosticSemaKinds.td include/clang/Basic/TargetInfo.h lib/Frontend/InitPreprocessor.cpp lib/Sema/Sema.cpp lib/Sema/SemaExpr.cpp lib/Sema/SemaType.cpp test/Sema/128bitint.c test/SemaCXX/overloaded-builtin-operators.cpp

Richard Smith richard at metafoo.co.uk
Thu Nov 29 15:11:03 PST 2012


On Thu, Nov 29, 2012 at 2:26 AM, NAKAMURA Takumi <geek4civic at gmail.com>wrote:

> I tweaked ASTTests in r168867, to remove i128 stuff.
> Does it make sense?
>

Seems fine, thanks.


> ...Takumi
>
> 2012/11/29 Richard Smith <richard-llvm at metafoo.co.uk>:
> > Author: rsmith
> > Date: Wed Nov 28 23:41:51 2012
> > New Revision: 168856
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=168856&view=rev
> > Log:
> > Reject uses of __int128 on platforms that don't support it. Also move
> the ugly
> > 'getPointerWidth(0) >= 64' test to be a method on TargetInfo, ready to be
> > properly cleaned up.
> >
> > Modified:
> >     cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
> >     cfe/trunk/include/clang/Basic/TargetInfo.h
> >     cfe/trunk/lib/Frontend/InitPreprocessor.cpp
> >     cfe/trunk/lib/Sema/Sema.cpp
> >     cfe/trunk/lib/Sema/SemaExpr.cpp
> >     cfe/trunk/lib/Sema/SemaType.cpp
> >     cfe/trunk/test/Sema/128bitint.c
> >     cfe/trunk/test/SemaCXX/overloaded-builtin-operators.cpp
> >
> > Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
> > +++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Wed Nov 28
> 23:41:51 2012
> > @@ -5869,6 +5869,8 @@
> >    "feature, not permitted in C++">;
> >  def err_double_requires_fp64 : Error<
> >    "use of type 'double' requires cl_khr_fp64 extension to be enabled">;
> > +def err_int128_unsupported : Error<
> > +  "__int128 is not supported on this target">;
> >  def err_nsconsumed_attribute_mismatch : Error<
> >    "overriding method has mismatched ns_consumed attribute on its"
> >    " parameter">;
> >
> > Modified: cfe/trunk/include/clang/Basic/TargetInfo.h
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/TargetInfo.h?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/include/clang/Basic/TargetInfo.h (original)
> > +++ cfe/trunk/include/clang/Basic/TargetInfo.h Wed Nov 28 23:41:51 2012
> > @@ -270,6 +270,9 @@
> >    unsigned getLongLongWidth() const { return LongLongWidth; }
> >    unsigned getLongLongAlign() const { return LongLongAlign; }
> >
> > +  /// \brief Determine whether the __int128 type is supported on this
> target.
> > +  bool hasInt128Type() const { return getPointerWidth(0) >= 64; } //
> FIXME
> > +
> >    /// \brief Return the alignment that is suitable for storing any
> >    /// object with a fundamental alignment requirement.
> >    unsigned getSuitableAlign() const { return SuitableAlign; }
> >
> > Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
> > +++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Wed Nov 28 23:41:51 2012
> > @@ -507,6 +507,8 @@
> >                     TI.getTypeWidth(TI.getWCharType()), TI, Builder);
> >    DefineTypeSizeof("__SIZEOF_WINT_T__",
> >                     TI.getTypeWidth(TI.getWIntType()), TI, Builder);
> > +  if (TI.hasInt128Type())
> > +    DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);
> >
> >    DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
> >    DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
> >
> > Modified: cfe/trunk/lib/Sema/Sema.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/Sema.cpp?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/lib/Sema/Sema.cpp (original)
> > +++ cfe/trunk/lib/Sema/Sema.cpp Wed Nov 28 23:41:51 2012
> > @@ -128,7 +128,7 @@
> >      ExternalSema->InitializeSema(*this);
> >
> >    // Initialize predefined 128-bit integer types, if needed.
> > -  if (PP.getTargetInfo().getPointerWidth(0) >= 64) {
> > +  if (PP.getTargetInfo().hasInt128Type()) {
> >      // If either of the 128-bit integer types are unavailable to name
> lookup,
> >      // define them now.
> >      DeclarationName Int128 = &Context.Idents.get("__int128_t");
> >
> > Modified: cfe/trunk/lib/Sema/SemaExpr.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaExpr.cpp?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/lib/Sema/SemaExpr.cpp (original)
> > +++ cfe/trunk/lib/Sema/SemaExpr.cpp Wed Nov 28 23:41:51 2012
> > @@ -2841,7 +2841,10 @@
> >      unsigned MaxWidth = Context.getTargetInfo().getIntMaxTWidth();
> >      // The microsoft literal suffix extensions support 128-bit
> literals, which
> >      // may be wider than [u]intmax_t.
> > -    if (Literal.isMicrosoftInteger && MaxWidth < 128)
> > +    // FIXME: Actually, they don't. We seem to have accidentally
> invented the
> > +    //        i128 suffix.
> > +    if (Literal.isMicrosoftInteger && MaxWidth < 128 &&
> > +        PP.getTargetInfo().hasInt128Type())
> >        MaxWidth = 128;
> >      llvm::APInt ResultVal(MaxWidth, 0);
> >
> > @@ -2911,7 +2914,8 @@
> >
> >        // If it doesn't fit in unsigned long long, and we're using
> Microsoft
> >        // extensions, then its a 128-bit integer literal.
> > -      if (Ty.isNull() && Literal.isMicrosoftInteger) {
> > +      if (Ty.isNull() && Literal.isMicrosoftInteger &&
> > +          PP.getTargetInfo().hasInt128Type()) {
> >          if (Literal.isUnsigned)
> >            Ty = Context.UnsignedInt128Ty;
> >          else
> >
> > Modified: cfe/trunk/lib/Sema/SemaType.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaType.cpp?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/lib/Sema/SemaType.cpp (original)
> > +++ cfe/trunk/lib/Sema/SemaType.cpp Wed Nov 28 23:41:51 2012
> > @@ -742,6 +742,8 @@
> >      break;
> >    }
> >    case DeclSpec::TST_int128:
> > +    if (!S.PP.getTargetInfo().hasInt128Type())
> > +      S.Diag(DS.getTypeSpecTypeLoc(), diag::err_int128_unsupported);
> >      if (DS.getTypeSpecSign() == DeclSpec::TSS_unsigned)
> >        Result = Context.UnsignedInt128Ty;
> >      else
> >
> > Modified: cfe/trunk/test/Sema/128bitint.c
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/128bitint.c?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/test/Sema/128bitint.c (original)
> > +++ cfe/trunk/test/Sema/128bitint.c Wed Nov 28 23:41:51 2012
> > @@ -1,9 +1,13 @@
> > -// RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-apple-darwin9
> -fms-extensions %s
> > +// RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-apple-darwin9
> -fms-extensions %s -DHAVE
> > +// RUN: %clang_cc1 -fsyntax-only -verify -triple i686-linux-gnu
> -fms-extensions %s -DHAVE_NOT
> > +
> > +#ifdef HAVE
> >  typedef int i128 __attribute__((__mode__(TI)));
> >  typedef unsigned u128 __attribute__((__mode__(TI)));
> >
> >  int a[((i128)-1 ^ (i128)-2) == 1 ? 1 : -1];
> >  int a[(u128)-1 > 1LL ? 1 : -1];
> > +int a[__SIZEOF_INT128__ == 16 ? 1 : -1];
> >
> >  // PR5435
> >  __uint128_t b = (__uint128_t)-1;
> > @@ -36,4 +40,12 @@
> >  {
> >    MPI_Send(buf, 0x10000000000000001i128); // expected-warning
> {{implicit conversion from '__int128' to 'int' changes value}}
> >  }
> > +#else
> > +
> > +__int128 n; // expected-error {{__int128 is not supported on this
> target}}
> > +
> > +#if defined(__SIZEOF_INT128__)
> > +#error __SIZEOF_INT128__ should not be defined
> > +#endif
> >
> > +#endif
> >
> > Modified: cfe/trunk/test/SemaCXX/overloaded-builtin-operators.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/overloaded-builtin-operators.cpp?rev=168856&r1=168855&r2=168856&view=diff
> >
> ==============================================================================
> > --- cfe/trunk/test/SemaCXX/overloaded-builtin-operators.cpp (original)
> > +++ cfe/trunk/test/SemaCXX/overloaded-builtin-operators.cpp Wed Nov 28
> 23:41:51 2012
> > @@ -1,4 +1,4 @@
> > -// RUN: %clang_cc1 -fsyntax-only -fshow-overloads=best -verify %s
> > +// RUN: %clang_cc1 -fsyntax-only -fshow-overloads=best -verify -triple
> x86_64-linux-gnu %s
> >  // REQUIRES: LP64
> >
> >  struct yes;
> >
> >
> > _______________________________________________
> > cfe-commits mailing list
> > cfe-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>
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