r302935 - [Sema] Support implicit scalar to vector conversions
Vitaly Buka via cfe-commits
cfe-commits at lists.llvm.org
Mon May 15 13:03:24 PDT 2017
Then I'll take a look, and if it's not something trivial I'll revert it.
On Mon, May 15, 2017 at 1:00 PM Simon Dardis <Simon.Dardis at imgtec.com>
wrote:
>
> Thanks, I'll try and look at this tomorrow.
>
> Simon
>
>
>
> From: Vitaly Buka [vitalybuka at google.com]
>
> Sent: 15 May 2017 20:57
>
> To: Simon Dardis; cfe-commits at lists.llvm.org
>
> Subject: Re: r302935 - [Sema] Support implicit scalar to vector conversions
>
>
> From ubsan bot:
>
>
> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/4892/steps/check-clang%20ubsan/logs/stdio
>
> llvm/tools/clang/lib/Sema/SemaExpr.cpp:8257:9: runtime error: load of
> value 4294967295, which is not a valid value for type 'clang::CastKind'
> #0 0x5bc3b88 in tryGCCVectorConvertAndSplat(clang::Sema&,
> clang::ActionResult<clang::Expr*, true>*, clang::ActionResult<clang::Expr*,
> true>*)
> /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/tools/clang/lib/Sema/SemaExpr.cpp:8257:9
> #1 0x5bbbea5 in
> clang::Sema::CheckVectorOperands(clang::ActionResult<clang::Expr*, true>&,
> clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation, bool,
> bool, bool)
> /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/tools/clang/lib/Sema/SemaExpr.cpp:8352:12
> #2 0x5bcc553 in
> clang::Sema::CheckVectorCompareOperands(clang::ActionResult<clang::Expr*,
> true>&, clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation,
> bool)
> /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/tools/clang/lib/Sema/SemaExpr.cpp:9990:20
> #3 0x5bc93a8 in
> clang::Sema::CheckCompareOperands(clang::ActionResult<clang::Expr*, true>&,
> clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation,
> clang::BinaryOperatorKind, bool)
> /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/tools/clang/lib/Sema/SemaExpr.cpp:9495:12
>
>
>
> On Fri, May 12, 2017 at 12:24 PM Simon Dardis via cfe-commits <
> cfe-commits at lists.llvm.org> wrote:
>
>
>
> Author: sdardis
>
> Date: Fri May 12 14:11:06 2017
>
> New Revision: 302935
>
>
>
> URL:
> http://llvm.org/viewvc/llvm-project?rev=302935&view=rev
>
> Log:
>
> [Sema] Support implicit scalar to vector conversions
>
>
>
> This patch teaches clang to perform implicit scalar to vector conversions
>
> when one of the operands of a binary vector expression is a scalar which
>
> can be converted to the element type of the vector without truncation
>
> following GCC's implementation.
>
>
>
> If the (constant) scalar is can be casted safely, it is implicitly casted
> to the
>
> vector elements type and splatted to produce a vector of the same type.
>
>
>
> Contributions from: Petar Jovanovic
>
>
>
> Reviewers: bruno, vkalintiris
>
>
>
> Differential Revision:
> https://reviews.llvm.org/D25866
>
>
>
>
>
> Added:
>
> cfe/trunk/test/Sema/vector-gcc-compat.c
>
> cfe/trunk/test/Sema/vector-gcc-compat.cpp
>
> Modified:
>
> cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>
> cfe/trunk/include/clang/Sema/Sema.h
>
> cfe/trunk/lib/Sema/SemaExpr.cpp
>
> cfe/trunk/lib/Sema/SemaExprCXX.cpp
>
> cfe/trunk/test/Sema/vector-cast.c
>
> cfe/trunk/test/Sema/vector-ops.c
>
> cfe/trunk/test/Sema/zvector.c
>
> cfe/trunk/test/SemaCXX/vector-no-lax.cpp
>
>
>
> Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=302935&r1=302934&r2=302935&view=diff
>
>
> ==============================================================================
>
> --- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
>
> +++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Fri May 12
> 14:11:06 2017
>
> @@ -2465,6 +2465,9 @@ def err_attribute_invalid_size : Error<
>
> "vector size not an integral multiple of component size">;
>
> def err_attribute_zero_size : Error<"zero vector size">;
>
> def err_attribute_size_too_large : Error<"vector size too large">;
>
> +def err_typecheck_vector_not_convertable_implict_truncation : Error<
>
> + "cannot convert between %select{scalar|vector}0 type %1 and vector
> type"
>
> + " %2 as implicit conversion would cause truncation">;
>
> def err_typecheck_vector_not_convertable : Error<
>
> "cannot convert between vector values of different size (%0 and %1)">;
>
> def err_typecheck_vector_not_convertable_non_scalar : Error<
>
> @@ -5779,6 +5782,9 @@ def err_objc_object_assignment : Error<
>
> "cannot assign to class object (%0 invalid)">;
>
> def err_typecheck_invalid_operands : Error<
>
> "invalid operands to binary expression (%0 and %1)">;
>
> +def err_typecheck_logical_vector_expr_gnu_cpp_restrict : Error<
>
> + "logical expression with vector %select{type %1 and non-vector type
> %2|types"
>
> + " %1 and %2}0 is only supported in C++">;
>
> def err_typecheck_sub_ptr_compatible : Error<
>
> "%diff{$ and $ are not pointers to compatible types|"
>
> "pointers to incompatible types}0,1">;
>
>
>
> Modified: cfe/trunk/include/clang/Sema/Sema.h
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Sema.h?rev=302935&r1=302934&r2=302935&view=diff
>
>
> ==============================================================================
>
> --- cfe/trunk/include/clang/Sema/Sema.h (original)
>
> +++ cfe/trunk/include/clang/Sema/Sema.h Fri May 12 14:11:06 2017
>
> @@ -9285,6 +9285,8 @@ public:
>
> /// type checking binary operators (subroutines of CreateBuiltinBinOp).
>
> QualType InvalidOperands(SourceLocation Loc, ExprResult &LHS,
>
> ExprResult &RHS);
>
> + QualType InvalidLogicalVectorOperands(SourceLocation Loc, ExprResult
> &LHS,
>
> + ExprResult &RHS);
>
> QualType CheckPointerToMemberOperands( // C++ 5.5
>
> ExprResult &LHS, ExprResult &RHS, ExprValueKind &VK,
>
> SourceLocation OpLoc, bool isIndirect);
>
>
>
> Modified: cfe/trunk/lib/Sema/SemaExpr.cpp
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaExpr.cpp?rev=302935&r1=302934&r2=302935&view=diff
>
>
> ==============================================================================
>
> --- cfe/trunk/lib/Sema/SemaExpr.cpp (original)
>
> +++ cfe/trunk/lib/Sema/SemaExpr.cpp Fri May 12 14:11:06 2017
>
> @@ -8031,6 +8031,33 @@ QualType Sema::InvalidOperands(SourceLoc
>
> return QualType();
>
> }
>
>
>
> +// Diagnose cases where a scalar was implicitly converted to a vector and
>
> +// diagnose the underlying types. Otherwise, diagnose the error
>
> +// as invalid vector logical operands for non-C++ cases.
>
> +QualType Sema::InvalidLogicalVectorOperands(SourceLocation Loc,
> ExprResult &LHS,
>
> + ExprResult &RHS) {
>
> + QualType LHSType = LHS.get()->IgnoreImpCasts()->getType();
>
> + QualType RHSType = RHS.get()->IgnoreImpCasts()->getType();
>
> +
>
> + bool LHSNatVec = LHSType->isVectorType();
>
> + bool RHSNatVec = RHSType->isVectorType();
>
> +
>
> + if (!(LHSNatVec && RHSNatVec)) {
>
> + Expr *Vector = LHSNatVec ? LHS.get() : RHS.get();
>
> + Expr *NonVector = !LHSNatVec ? LHS.get() : RHS.get();
>
> + Diag(Loc, diag::err_typecheck_logical_vector_expr_gnu_cpp_restrict)
>
> + << 0 << Vector->getType() <<
> NonVector->IgnoreImpCasts()->getType()
>
> + << Vector->getSourceRange();
>
> + return QualType();
>
> + }
>
> +
>
> + Diag(Loc, diag::err_typecheck_logical_vector_expr_gnu_cpp_restrict)
>
> + << 1 << LHSType << RHSType << LHS.get()->getSourceRange()
>
> + << RHS.get()->getSourceRange();
>
> +
>
> + return QualType();
>
> +}
>
> +
>
> /// Try to convert a value of non-vector type to a vector type by
> converting
>
> /// the type to the element type of the vector and then performing a
> splat.
>
> /// If the language is OpenCL, we only use conversions that promote scalar
>
> @@ -8078,6 +8105,162 @@ static bool tryVectorConvertAndSplat(Sem
>
> return false;
>
> }
>
>
>
> +/// Test if a (constant) integer Int can be casted to another integer type
>
> +/// IntTy without losing precision.
>
> +static bool canConvertIntToOtherIntTy(Sema &S, ExprResult *Int,
>
> + QualType OtherIntTy) {
>
> + QualType IntTy = Int->get()->getType().getUnqualifiedType();
>
> +
>
> + // Reject cases where the value of the Int is unknown as that would
>
> + // possibly cause truncation, but accept cases where the scalar can be
>
> + // demoted without loss of precision.
>
> + llvm::APSInt Result;
>
> + bool CstInt = Int->get()->EvaluateAsInt(Result, S.Context);
>
> + int Order = S.Context.getIntegerTypeOrder(OtherIntTy, IntTy);
>
> + bool IntSigned = IntTy->hasSignedIntegerRepresentation();
>
> + bool OtherIntSigned = OtherIntTy->hasSignedIntegerRepresentation();
>
> +
>
> + if (CstInt) {
>
> + // If the scalar is constant and is of a higher order and has more
> active
>
> + // bits that the vector element type, reject it.
>
> + unsigned NumBits = IntSigned
>
> + ? (Result.isNegative() ?
> Result.getMinSignedBits()
>
> + :
> Result.getActiveBits())
>
> + : Result.getActiveBits();
>
> + if (Order < 0 && S.Context.getIntWidth(OtherIntTy) < NumBits)
>
> + return true;
>
> +
>
> + // If the signedness of the scalar type and the vector element type
>
> + // differs and the number of bits is greater than that of the vector
>
> + // element reject it.
>
> + return (IntSigned != OtherIntSigned &&
>
> + NumBits > S.Context.getIntWidth(OtherIntTy));
>
> + }
>
> +
>
> + // Reject cases where the value of the scalar is not constant and it's
>
> + // order is greater than that of the vector element type.
>
> + return (Order < 0);
>
> +}
>
> +
>
> +/// Test if a (constant) integer Int can be casted to floating point type
>
> +/// FloatTy without losing precision.
>
> +static bool canConvertIntTyToFloatTy(Sema &S, ExprResult *Int,
>
> + QualType FloatTy) {
>
> + QualType IntTy = Int->get()->getType().getUnqualifiedType();
>
> +
>
> + // Determine if the integer constant can be expressed as a floating
> point
>
> + // number of the appropiate type.
>
> + llvm::APSInt Result;
>
> + bool CstInt = Int->get()->EvaluateAsInt(Result, S.Context);
>
> + uint64_t Bits = 0;
>
> + if (CstInt) {
>
> + // Reject constants that would be truncated if they were converted to
>
> + // the floating point type. Test by simple to/from conversion.
>
> + // FIXME: Ideally the conversion to an APFloat and from an APFloat
>
> + // could be avoided if there was a convertFromAPInt method
>
> + // which could signal back if implicit truncation occurred.
>
> + llvm::APFloat Float(S.Context.getFloatTypeSemantics(FloatTy));
>
> + Float.convertFromAPInt(Result,
> IntTy->hasSignedIntegerRepresentation(),
>
> + llvm::APFloat::rmTowardZero);
>
> + llvm::APSInt ConvertBack(S.Context.getIntWidth(IntTy),
>
> + !IntTy->hasSignedIntegerRepresentation());
>
> + bool Ignored = false;
>
> + Float.convertToInteger(ConvertBack,
> llvm::APFloat::rmNearestTiesToEven,
>
> + &Ignored);
>
> + if (Result != ConvertBack)
>
> + return true;
>
> + } else {
>
> + // Reject types that cannot be fully encoded into the mantissa of
>
> + // the float.
>
> + Bits = S.Context.getTypeSize(IntTy);
>
> + unsigned FloatPrec = llvm::APFloat::semanticsPrecision(
>
> + S.Context.getFloatTypeSemantics(FloatTy));
>
> + if (Bits > FloatPrec)
>
> + return true;
>
> + }
>
> +
>
> + return false;
>
> +}
>
> +
>
> +/// Attempt to convert and splat Scalar into a vector whose types matches
>
> +/// Vector following GCC conversion rules. The rule is that implicit
>
> +/// conversion can occur when Scalar can be casted to match Vector's
> element
>
> +/// type without causing truncation of Scalar.
>
> +static bool tryGCCVectorConvertAndSplat(Sema &S, ExprResult *Scalar,
>
> + ExprResult *Vector) {
>
> + QualType ScalarTy = Scalar->get()->getType().getUnqualifiedType();
>
> + QualType VectorTy = Vector->get()->getType().getUnqualifiedType();
>
> + const VectorType *VT = VectorTy->getAs<VectorType>();
>
> +
>
> + assert(!isa<ExtVectorType>(VT) &&
>
> + "ExtVectorTypes should not be handled here!");
>
> +
>
> + QualType VectorEltTy = VT->getElementType();
>
> +
>
> + // Reject cases where the vector element type or the scalar element
> type are
>
> + // not integral or floating point types.
>
> + if (!VectorEltTy->isArithmeticType() || !ScalarTy->isArithmeticType())
>
> + return true;
>
> +
>
> + // The conversion to apply to the scalar before splatting it,
>
> + // if necessary.
>
> + CastKind ScalarCast = CK_Invalid;
>
> +
>
> + // Accept cases where the vector elements are integers and the scalar is
>
> + // an integer.
>
> + // FIXME: Notionally if the scalar was a floating point value with a
> precise
>
> + // integral representation, we could cast it to an appropriate
> integer
>
> + // type and then perform the rest of the checks here. GCC will
> perform
>
> + // this conversion in some cases as determined by the input
> language.
>
> + // We should accept it on a language independent basis.
>
> + if (VectorEltTy->isIntegralType(S.Context) &&
>
> + ScalarTy->isIntegralType(S.Context) &&
>
> + S.Context.getIntegerTypeOrder(VectorEltTy, ScalarTy)) {
>
> +
>
> + if (canConvertIntToOtherIntTy(S, Scalar, VectorEltTy))
>
> + return true;
>
> +
>
> + ScalarCast = CK_IntegralCast;
>
> + } else if (VectorEltTy->isRealFloatingType()) {
>
> + if (ScalarTy->isRealFloatingType()) {
>
> +
>
> + // Reject cases where the scalar type is not a constant and has a
> higher
>
> + // Order than the vector element type.
>
> + llvm::APFloat Result(0.0);
>
> + bool CstScalar = Scalar->get()->EvaluateAsFloat(Result, S.Context);
>
> + int Order = S.Context.getFloatingTypeOrder(VectorEltTy, ScalarTy);
>
> + if (!CstScalar && Order < 0)
>
> + return true;
>
> +
>
> + // If the scalar cannot be safely casted to the vector element type,
>
> + // reject it.
>
> + if (CstScalar) {
>
> + bool Truncated = false;
>
> + Result.convert(S.Context.getFloatTypeSemantics(VectorEltTy),
>
> + llvm::APFloat::rmNearestTiesToEven, &Truncated);
>
> + if (Truncated)
>
> + return true;
>
> + }
>
> +
>
> + ScalarCast = CK_FloatingCast;
>
> + } else if (ScalarTy->isIntegralType(S.Context)) {
>
> + if (canConvertIntTyToFloatTy(S, Scalar, VectorEltTy))
>
> + return true;
>
> +
>
> + ScalarCast = CK_IntegralToFloating;
>
> + } else
>
> + return true;
>
> + }
>
> +
>
> + // Adjust scalar if desired.
>
> + if (Scalar) {
>
> + if (ScalarCast != CK_Invalid)
>
> + *Scalar = S.ImpCastExprToType(Scalar->get(), VectorEltTy,
> ScalarCast);
>
> + *Scalar = S.ImpCastExprToType(Scalar->get(), VectorTy,
> CK_VectorSplat);
>
> + }
>
> + return false;
>
> +}
>
> +
>
> QualType Sema::CheckVectorOperands(ExprResult &LHS, ExprResult &RHS,
>
> SourceLocation Loc, bool IsCompAssign,
>
> bool AllowBothBool,
>
> @@ -8146,19 +8329,29 @@ QualType Sema::CheckVectorOperands(ExprR
>
> }
>
> }
>
>
>
> - // If there's an ext-vector type and a scalar, try to convert the
> scalar to
>
> + // If there's a vector type and a scalar, try to convert the scalar to
>
> // the vector element type and splat.
>
> - // FIXME: this should also work for regular vector types as supported
> in GCC.
>
> - if (!RHSVecType && isa<ExtVectorType>(LHSVecType)) {
>
> - if (!tryVectorConvertAndSplat(*this, &RHS, RHSType,
>
> - LHSVecType->getElementType(), LHSType))
>
> - return LHSType;
>
> + if (!RHSVecType) {
>
> + if (isa<ExtVectorType>(LHSVecType)) {
>
> + if (!tryVectorConvertAndSplat(*this, &RHS, RHSType,
>
> + LHSVecType->getElementType(),
> LHSType))
>
> + return LHSType;
>
> + } else {
>
> + if (!tryGCCVectorConvertAndSplat(*this, &RHS, &LHS))
>
> + return LHSType;
>
> + }
>
> }
>
> - if (!LHSVecType && isa<ExtVectorType>(RHSVecType)) {
>
> - if (!tryVectorConvertAndSplat(*this, (IsCompAssign ? nullptr : &LHS),
>
> - LHSType, RHSVecType->getElementType(),
>
> - RHSType))
>
> - return RHSType;
>
> + if (!LHSVecType) {
>
> + if (isa<ExtVectorType>(RHSVecType)) {
>
> + if (!tryVectorConvertAndSplat(*this, (IsCompAssign ? nullptr :
> &LHS),
>
> + LHSType, RHSVecType->getElementType(),
>
> + RHSType))
>
> + return RHSType;
>
> + } else {
>
> + if (LHS.get()->getValueKind() == VK_LValue ||
>
> + !tryGCCVectorConvertAndSplat(*this, &LHS, &RHS))
>
> + return RHSType;
>
> + }
>
> }
>
>
>
> // FIXME: The code below also handles conversion between vectors and
>
> @@ -8211,6 +8404,22 @@ QualType Sema::CheckVectorOperands(ExprR
>
> return QualType();
>
> }
>
>
>
> +
>
> + // If there is a vector type that is not a ExtVector and a scalar, we
> reach
>
> + // this point if scalar could not be converted to the vector's element
> type
>
> + // without truncation.
>
> + if ((RHSVecType && !isa<ExtVectorType>(RHSVecType)) ||
>
> + (LHSVecType && !isa<ExtVectorType>(LHSVecType))) {
>
> + QualType Scalar = LHSVecType ? RHSType : LHSType;
>
> + QualType Vector = LHSVecType ? LHSType : RHSType;
>
> + unsigned ScalarOrVector = LHSVecType && RHSVecType ? 1 : 0;
>
> + Diag(Loc,
>
> + diag::err_typecheck_vector_not_convertable_implict_truncation)
>
> + << ScalarOrVector << Scalar << Vector;
>
> +
>
> + return QualType();
>
> + }
>
> +
>
> // Otherwise, use the generic diagnostic.
>
> Diag(Loc, diag::err_typecheck_vector_not_convertable)
>
> << LHSType << RHSType
>
> @@ -9830,6 +10039,12 @@ QualType Sema::CheckVectorLogicalOperand
>
> if (getLangOpts().OpenCL && getLangOpts().OpenCLVersion < 120 &&
>
> vType->hasFloatingRepresentation())
>
> return InvalidOperands(Loc, LHS, RHS);
>
> + // FIXME: The check for C++ here is for GCC compatibility. GCC rejects
> the
>
> + // usage of the logical operators && and || with vectors in C.
> This
>
> + // check could be notionally dropped.
>
> + if (!getLangOpts().CPlusPlus &&
>
> + !(isa<ExtVectorType>(vType->getAs<VectorType>())))
>
> + return InvalidLogicalVectorOperands(Loc, LHS, RHS);
>
>
>
> return GetSignedVectorType(LHS.get()->getType());
>
> }
>
> @@ -11773,6 +11988,8 @@ ExprResult Sema::CreateBuiltinUnaryOp(So
>
> resultType = GetSignedVectorType(resultType);
>
> break;
>
> } else {
>
> + // FIXME: GCC's vector extension permits the usage of '!' with a
> vector
>
> + // type in C++. We should allow that here too.
>
> return ExprError(Diag(OpLoc, diag::err_typecheck_unary_expr)
>
> << resultType << Input.get()->getSourceRange());
>
> }
>
>
>
> Modified: cfe/trunk/lib/Sema/SemaExprCXX.cpp
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaExprCXX.cpp?rev=302935&r1=302934&r2=302935&view=diff
>
>
> ==============================================================================
>
> --- cfe/trunk/lib/Sema/SemaExprCXX.cpp (original)
>
> +++ cfe/trunk/lib/Sema/SemaExprCXX.cpp Fri May 12 14:11:06 2017
>
> @@ -5356,6 +5356,15 @@ QualType Sema::CXXCheckConditionalOperan
>
>
>
> // C++11 [expr.cond]p1
>
> // The first expression is contextually converted to bool.
>
> + //
>
> + // FIXME; GCC's vector extension permits the use of a?b:c where the
> type of
>
> + // a is that of a integer vector with the same number of
> elements and
>
> + // size as the vectors of b and c. If one of either b or c is a
> scalar
>
> + // it is implicitly converted to match the type of the vector.
>
> + // Otherwise the expression is ill-formed. If both b and c are
> scalars,
>
> + // then b and c are checked and converted to the type of a if
> possible.
>
> + // Unlike the OpenCL ?: operator, the expression is evaluated as
>
> + // (a[0] != 0 ? b[0] : c[0], .. , a[n] != 0 ? b[n] : c[n]).
>
> if (!Cond.get()->isTypeDependent()) {
>
> ExprResult CondRes = CheckCXXBooleanCondition(Cond.get());
>
> if (CondRes.isInvalid())
>
>
>
> Modified: cfe/trunk/test/Sema/vector-cast.c
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/vector-cast.c?rev=302935&r1=302934&r2=302935&view=diff
>
>
> ==============================================================================
>
> --- cfe/trunk/test/Sema/vector-cast.c (original)
>
> +++ cfe/trunk/test/Sema/vector-cast.c Fri May 12 14:11:06 2017
>
> @@ -53,9 +53,8 @@ void f4() {
>
> float2 f2;
>
> double d, a, b, c;
>
> float64x2_t v = {0.0, 1.0};
>
> - // FIXME: These diagnostics are inaccurate: should complain that
> 'double' to vector 'float2' involves truncation
>
> - f2 += d; // expected-error {{cannot convert between vector values of
> different size ('float2' (vector of 2 'float' values) and 'double')}}
>
> - d += f2; // expected-error {{cannot convert between vector values of
> different size}}
>
> + f2 += d; // expected-error {{cannot convert between scalar type
> 'double' and vector type 'float2' (vector of 2 'float' values) as implicit
> conversion would cause truncation}}
>
> + d += f2; // expected-error {{assigning to 'double' from incompatible
> type 'float2' (vector of 2 'float' values)}}
>
> a = 3.0 + vget_low_f64(v);
>
> b = vget_low_f64(v) + 3.0;
>
> c = vget_low_f64(v);
>
>
>
> Added: cfe/trunk/test/Sema/vector-gcc-compat.c
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/vector-gcc-compat.c?rev=302935&view=auto
>
>
> ==============================================================================
>
> --- cfe/trunk/test/Sema/vector-gcc-compat.c (added)
>
> +++ cfe/trunk/test/Sema/vector-gcc-compat.c Fri May 12 14:11:06 2017
>
> @@ -0,0 +1,330 @@
>
> +// RUN: %clang_cc1 %s -verify -fsyntax-only -Weverything
>
> +
>
> +// Test the compatibility of clang's vector extensions with gcc's vector
>
> +// extensions for C. Notably &&, ||, ?: and ! are not available.
>
> +typedef long long v2i64 __attribute__((vector_size(16)));
>
> +typedef int v2i32 __attribute__((vector_size(8)));
>
> +typedef short v2i16 __attribute__((vector_size(4)));
>
> +typedef char v2i8 __attribute__((vector_size(2)));
>
> +
>
> +typedef unsigned long long v2u64 __attribute__((vector_size(16)));
>
> +typedef unsigned int v2u32 __attribute__((vector_size(8)));
>
> +typedef unsigned short v2u16 __attribute__((vector_size(4)));
>
> +typedef unsigned char v2u8 __attribute__((vector_size(2)));
>
> +
>
> +typedef float v4f32 __attribute__((vector_size(16)));
>
> +typedef double v2f64 __attribute__((vector_size(16)));
>
> +typedef double v4f64 __attribute__((vector_size(32)));
>
> +typedef int v4i32 __attribute((vector_size(16)));
>
> +
>
> +void arithmeticTest(void);
>
> +void logicTest(void);
>
> +void comparisonTest(void);
>
> +void floatTestSignedType(char a, short b, int c, long long d);
>
> +void floatTestUnsignedType(unsigned char a, unsigned short b, unsigned
> int c,
>
> + unsigned long long d);
>
> +void floatTestConstant(void);
>
> +void intTestType(char a, short b, int c, long long d);
>
> +void intTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d);
>
> +void uintTestType(char a, short b, int c, long long d);
>
> +void uintTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d);
>
> +void uintTestConstant(v2u64 v2u64_a, v2u32 v2u32_a, v2u16 v2u16_a, v2u8
> v2u8_a);
>
> +void intTestConstant(v2i64 v2i64_a, v2i32 v2i32_a, v2i16 v2i16_a, v2i8
> v2i8_a);
>
> +
>
> +void arithmeticTest(void) {
>
> + v2i64 v2i64_a = (v2i64){0, 1};
>
> + v2i64 v2i64_r;
>
> +
>
> + v2i64_r = v2i64_a + 1;
>
> + v2i64_r = v2i64_a - 1;
>
> + v2i64_r = v2i64_a * 1;
>
> + v2i64_r = v2i64_a / 1;
>
> + v2i64_r = v2i64_a % 1;
>
> +
>
> + v2i64_r = 1 + v2i64_a;
>
> + v2i64_r = 1 - v2i64_a;
>
> + v2i64_r = 1 * v2i64_a;
>
> + v2i64_r = 1 / v2i64_a;
>
> + v2i64_r = 1 % v2i64_a;
>
> +
>
> + v2i64_a += 1;
>
> + v2i64_a -= 1;
>
> + v2i64_a *= 1;
>
> + v2i64_a /= 1;
>
> + v2i64_a %= 1;
>
> +}
>
> +
>
> +void comparisonTest(void) {
>
> + v2i64 v2i64_a = (v2i64){0, 1};
>
> + v2i64 v2i64_r;
>
> +
>
> + v2i64_r = v2i64_a == 1;
>
> + v2i64_r = v2i64_a != 1;
>
> + v2i64_r = v2i64_a < 1;
>
> + v2i64_r = v2i64_a > 1;
>
> + v2i64_r = v2i64_a <= 1;
>
> + v2i64_r = v2i64_a >= 1;
>
> +
>
> + v2i64_r = 1 == v2i64_a;
>
> + v2i64_r = 1 != v2i64_a;
>
> + v2i64_r = 1 < v2i64_a;
>
> + v2i64_r = 1 > v2i64_a;
>
> + v2i64_r = 1 <= v2i64_a;
>
> + v2i64_r = 1 >= v2i64_a;
>
> +}
>
> +
>
> +void logicTest(void) {
>
> + v2i64 v2i64_a = (v2i64){0, 1};
>
> + v2i64 v2i64_b = (v2i64){2, 1};
>
> + v2i64 v2i64_c = (v2i64){3, 1};
>
> + v2i64 v2i64_r;
>
> +
>
> + v2i64_r = !v2i64_a; // expected-error {{invalid argument type 'v2i64'
> (vector of 2 'long long' values) to unary expression}}
>
> + v2i64_r = ~v2i64_a;
>
> +
>
> + v2i64_r = v2i64_a ? v2i64_b : v2i64_c; // expected-error {{used type
> 'v2i64' (vector of 2 'long long' values) where arithmetic or pointer type
> is required}}
>
> +
>
> + v2i64_r = v2i64_a & 1;
>
> + v2i64_r = v2i64_a | 1;
>
> + v2i64_r = v2i64_a ^ 1;
>
> +
>
> + v2i64_r = 1 & v2i64_a;
>
> + v2i64_r = 1 | v2i64_a;
>
> + v2i64_r = 1 ^ v2i64_a;
>
> +
>
> + v2i64_a &= 1;
>
> + v2i64_a |= 1;
>
> + v2i64_a ^= 1;
>
> +
>
> + v2i64_r = v2i64_a && 1; // expected-error {{logical expression with
> vector type 'v2i64' (vector of 2 'long long' values) and non-vector type
> 'int' is only supported in C++}}
>
> + v2i64_r = v2i64_a || 1; // expected-error {{logical expression with
> vector type 'v2i64' (vector of 2 'long long' values) and non-vector type
> 'int' is only supported in C++}}
>
> +
>
> + v2i64_r = v2i64_a && v2i64_a; // expected-error {{logical expression
> with vector types 'v2i64' (vector of 2 'long long' values) and 'v2i64' is
> only supported in C++}}
>
> + v2i64_r = v2i64_a || v2i64_a; // expected-error {{logical expression
> with vector types 'v2i64' (vector of 2 'long long' values) and 'v2i64' is
> only supported in C++}}
>
> +
>
> + v2i64_r = v2i64_a << 1;
>
> + v2i64_r = v2i64_a >> 1;
>
> +
>
> + v2i64_r = 1 << v2i64_a;
>
> + v2i64_r = 1 >> v2i64_a;
>
> +
>
> + v2i64_a <<= 1;
>
> + v2i64_a >>= 1;
>
> +}
>
> +
>
> +// For operations with floating point types, we check that interger
> constants
>
> +// can be respresented, or failing that checking based on the integer
> types.
>
> +void floatTestConstant(void) {
>
> + // Test that constants added to floats must be expressible as floating
> point
>
> + // numbers.
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4f32_a = v4f32_a + 1;
>
> + v4f32_a = v4f32_a + 0xFFFFFF;
>
> + v4f32_a = v4f32_a + (-1567563LL);
>
> + v4f32_a = v4f32_a + (16777208);
>
> + v4f32_a = v4f32_a + (16777219); // expected-error {{cannot convert
> between scalar type 'int' and vector type 'v4f32' (vector of 4 'float'
> values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void floatTestConstantComparison(void);
>
> +void doubleTestConstantComparison(void);
>
> +
>
> +void floatTestConstantComparison(void) {
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4i32 v4i32_r;
>
> + v4i32_r = v4f32_a > 0.4f;
>
> + v4i32_r = v4f32_a >= 0.4f;
>
> + v4i32_r = v4f32_a < 0.4f;
>
> + v4i32_r = v4f32_a <= 0.4f;
>
> + v4i32_r = v4f32_a == 0.4f; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> + v4i32_r = v4f32_a != 0.4f; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> +}
>
> +
>
> +void doubleTestConstantComparison(void) {
>
> + v2f64 v2f64_a = {0.4, 0.4};
>
> + v2i64 v2i64_r;
>
> + v2i64_r = v2f64_a > 0.4;
>
> + v2i64_r = v2f64_a >= 0.4;
>
> + v2i64_r = v2f64_a < 0.4;
>
> + v2i64_r = v2f64_a <= 0.4;
>
> + v2i64_r = v2f64_a == 0.4; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> + v2i64_r = v2f64_a != 0.4; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> +}
>
> +
>
> +void floatTestUnsignedType(unsigned char a, unsigned short b, unsigned
> int c,
>
> + unsigned long long d) {
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4f64 v4f64_b = {0.4, 0.4, 0.4, 0.4};
>
> +
>
> + v4f32_a = v4f32_a + a;
>
> + v4f32_a = v4f32_a + b;
>
> + v4f32_a = v4f32_a + c; // expected-error {{cannot convert between
> scalar type 'unsigned int' and vector type 'v4f32' (vector of 4 'float'
> values) as implicit conversion would cause truncation}}
>
> + v4f32_a = v4f32_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v4f32' (vector of 4
> 'float' values) as implicit conversion would cause truncation}}
>
> +
>
> + v4f64_b = v4f64_b + a;
>
> + v4f64_b = v4f64_b + b;
>
> + v4f64_b = v4f64_b + c;
>
> + v4f64_b = v4f64_b + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v4f64' (vector of 4
> 'double' values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void floatTestSignedType(char a, short b, int c, long long d) {
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4f64 v4f64_b = {0.4, 0.4, 0.4, 0.4};
>
> +
>
> + v4f32_a = v4f32_a + a;
>
> + v4f32_a = v4f32_a + b;
>
> + v4f32_a = v4f32_a + c; // expected-error {{cannot convert between
> scalar type 'int' and vector type 'v4f32' (vector of 4 'float' values) as
> implicit conversion would cause truncation}}
>
> + v4f32_a = v4f32_a + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v4f32' (vector of 4 'float'
> values) as implicit conversion would cause truncation}}
>
> +
>
> + v4f64_b = v4f64_b + a;
>
> + v4f64_b = v4f64_b + b;
>
> + v4f64_b = v4f64_b + c;
>
> + v4f64_b = v4f64_b + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v4f64' (vector of 4 'double'
> values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void intTestType(char a, short b, int c, long long d) {
>
> + v2i64 v2i64_a = {1, 2};
>
> + v2i32 v2i32_a = {1, 2};
>
> + v2i16 v2i16_a = {1, 2};
>
> + v2i8 v2i8_a = {1, 2};
>
> +
>
> + v2i64_a = v2i64_a + d;
>
> + v2i64_a = v2i64_a + c;
>
> + v2i64_a = v2i64_a + b;
>
> + v2i64_a = v2i64_a + a;
>
> +
>
> + v2i32_a = v2i32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'long long' to 'v2i32' (vector of 2 'int' values)}}
>
> + v2i32_a = v2i32_a + c;
>
> + v2i32_a = v2i32_a + b;
>
> + v2i32_a = v2i32_a + a;
>
> +
>
> + v2i16_a = v2i16_a + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v2i16' (vector of 2 'short'
> values) as implicit conversion would cause truncation}}
>
> + v2i16_a = v2i16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'int' to 'v2i16' (vector of 2 'short' values)}}
>
> + v2i16_a = v2i16_a + b;
>
> + v2i16_a = v2i16_a + a;
>
> +
>
> + v2i8_a = v2i8_a + d; // expected-error {{cannot convert between scalar
> type 'long long' and vector type 'v2i8' (vector of 2 'char' values) as
> implicit conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + c; // expected-error {{cannot convert between scalar
> type 'int' and vector type 'v2i8' (vector of 2 'char' values) as implicit
> conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'short' to 'v2i8' (vector of 2 'char' values)}}
>
> + v2i8_a = v2i8_a + a;
>
> +}
>
> +
>
> +void intTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d) {
>
> + v2i64 v2i64_a = {1, 2};
>
> + v2i32 v2i32_a = {1, 2};
>
> + v2i16 v2i16_a = {1, 2};
>
> + v2i8 v2i8_a = {1, 2};
>
> +
>
> + v2i64_a = v2i64_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v2i64' (vector of 2 'long
> long' values) as implicit conversion would cause truncation}}
>
> +
>
> + v2i64_a = v2i64_a + c;
>
> + v2i64_a = v2i64_a + b;
>
> + v2i64_a = v2i64_a + a;
>
> +
>
> + v2i32_a = v2i32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned long long' to 'v2i32' (vector of 2 'int'
> values)}}
>
> + v2i32_a = v2i32_a + c; // expected-error {{cannot convert between
> scalar type 'unsigned int' and vector type 'v2i32' (vector of 2 'int'
> values) as implicit conversion would cause truncation}}
>
> + v2i32_a = v2i32_a + b;
>
> + v2i32_a = v2i32_a + a;
>
> +
>
> + v2i16_a = v2i16_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v2i16' (vector of 2
> 'short' values) as implicit conversion would cause truncation}}
>
> + v2i16_a = v2i16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned int' to 'v2i16' (vector of 2 'short' values)}}
>
> + v2i16_a = v2i16_a + b; // expected-error {{cannot convert between
> scalar type 'unsigned short' and vector type 'v2i16' (vector of 2 'short'
> values) as implicit conversion would cause truncation}}
>
> + v2i16_a = v2i16_a + a;
>
> +
>
> + v2i8_a = v2i8_a + d; // expected-error {{cannot convert between scalar
> type 'unsigned long long' and vector type 'v2i8' (vector of 2 'char'
> values) as implicit conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + c; // expected-error {{cannot convert between scalar
> type 'unsigned int' and vector type 'v2i8' (vector of 2 'char' values) as
> implicit conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned short' to 'v2i8' (vector of 2 'char' values)}}
>
> + v2i8_a = v2i8_a + a; // expected-error {{cannot convert between scalar
> type 'unsigned char' and vector type 'v2i8' (vector of 2 'char' values) as
> implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void uintTestType(char a, short b, int c, long long d) {
>
> + v2u64 v2u64_a = {1, 2};
>
> + v2u32 v2u32_a = {1, 2};
>
> + v2u16 v2u16_a = {1, 2};
>
> + v2u8 v2u8_a = {1, 2};
>
> +
>
> + v2u64_a = v2u64_a + d; // expected-warning {{implicit conversion
> changes signedness: 'long long' to 'v2u64' (vector of 2 'unsigned long
> long' values)}}
>
> + v2u64_a = v2u64_a + c; // expected-warning {{implicit conversion
> changes signedness: 'int' to 'v2u64' (vector of 2 'unsigned long long'
> values)}}
>
> + v2u64_a = v2u64_a + b; // expected-warning {{implicit conversion
> changes signedness: 'short' to 'v2u64' (vector of 2 'unsigned long long'
> values)}}
>
> + v2u64_a = v2u64_a + a; // expected-warning {{implicit conversion
> changes signedness: 'char' to 'v2u64' (vector of 2 'unsigned long long'
> values)}}
>
> +
>
> + v2u32_a = v2u32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'long long' to 'v2u32' (vector of 2 'unsigned int'
> values)}}
>
> + v2u32_a = v2u32_a + c; // expected-warning {{implicit conversion
> changes signedness: 'int' to 'v2u32' (vector of 2 'unsigned int' values)}}
>
> + v2u32_a = v2u32_a + b; // expected-warning {{implicit conversion
> changes signedness: 'short' to 'v2u32' (vector of 2 'unsigned int' values)}}
>
> + v2u32_a = v2u32_a + a; // expected-warning {{implicit conversion
> changes signedness: 'char' to 'v2u32' (vector of 2 'unsigned int' values)}}
>
> +
>
> + v2u16_a = v2u16_a + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v2u16' (vector of 2 'unsigned
> short' values) as implicit conversion would cause truncation}}
>
> + v2u16_a = v2u16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'int' to 'v2u16' (vector of 2 'unsigned short' values)}}
>
> + v2u16_a = v2u16_a + b; // expected-warning {{implicit conversion
> changes signedness: 'short' to 'v2u16' (vector of 2 'unsigned short'
> values)}}
>
> + v2u16_a = v2u16_a + a; // expected-warning {{implicit conversion
> changes signedness: 'char' to 'v2u16' (vector of 2 'unsigned short'
> values)}}
>
> +
>
> + v2u8_a = v2u8_a + d; // expected-error {{cannot convert between scalar
> type 'long long' and vector type 'v2u8' (vector of 2 'unsigned char'
> values) as implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + c; // expected-error {{cannot convert between scalar
> type 'int' and vector type 'v2u8' (vector of 2 'unsigned char' values) as
> implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'short' to 'v2u8' (vector of 2 'unsigned char' values)}}
>
> + v2u8_a = v2u8_a + a; // expected-warning {{implicit conversion changes
> signedness: 'char' to 'v2u8' (vector of 2 'unsigned char' values)}}
>
> +}
>
> +
>
> +void uintTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d) {
>
> + v2u64 v2u64_a = {1, 2};
>
> + v2u32 v2u32_a = {1, 2};
>
> + v2u16 v2u16_a = {1, 2};
>
> + v2u8 v2u8_a = {1, 2};
>
> +
>
> + v2u64_a = v2u64_a + d;
>
> + v2u64_a = v2u64_a + c;
>
> + v2u64_a = v2u64_a + b;
>
> + v2u64_a = v2u64_a + a;
>
> +
>
> + v2u32_a = v2u32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned long long' to 'v2u32' (vector of 2 'unsigned
> int' values)}}
>
> + v2u32_a = v2u32_a + c;
>
> + v2u32_a = v2u32_a + b;
>
> + v2u32_a = v2u32_a + a;
>
> +
>
> + v2u16_a = v2u16_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v2u16' (vector of 2
> 'unsigned short' values) as implicit conversion would cause truncation}}
>
> + v2u16_a = v2u16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned int' to 'v2u16' (vector of 2 'unsigned short'
> values)}}
>
> + v2u16_a = v2u16_a + b;
>
> + v2u16_a = v2u16_a + a;
>
> +
>
> + v2u8_a = v2u8_a + d; // expected-error {{cannot convert between scalar
> type 'unsigned long long' and vector type 'v2u8' (vector of 2 'unsigned
> char' values) as implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + c; // expected-error {{cannot convert between scalar
> type 'unsigned int' and vector type 'v2u8' (vector of 2 'unsigned char'
> values) as implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned short' to 'v2u8' (vector of 2 'unsigned char'
> values)}}
>
> + v2u8_a = v2u8_a + a;
>
> +}
>
> +
>
> +void uintTestConstant(v2u64 v2u64_a, v2u32 v2u32_a, v2u16 v2u16_a,
>
> + v2u8 v2u8_a) {
>
> + v2u64_a = v2u64_a + 0xFFFFFFFFFFFFFFFF;
>
> + v2u32_a = v2u32_a + 0xFFFFFFFF;
>
> + v2u16_a = v2u16_a + 0xFFFF;
>
> + v2u8_a = v2u8_a + 0xFF;
>
> +
>
> + v2u32_a = v2u32_a + 0x1FFFFFFFF; // expected-warning {{implicit
> conversion from 'long' to 'v2u32' (vector of 2 'unsigned int' values)
> changes value from 8589934591 to 4294967295}}
>
> + v2u16_a = v2u16_a + 0x1FFFF; // expected-warning {{implicit
> conversion from 'int' to 'v2u16' (vector of 2 'unsigned short' values)
> changes value from 131071 to 65535}}
>
> + v2u8_a = v2u8_a + 0x1FF; // expected-error {{cannot convert
> between scalar type 'int' and vector type 'v2u8' (vector of 2 'unsigned
> char' values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void intTestConstant(v2i64 v2i64_a, v2i32 v2i32_a, v2i16 v2i16_a, v2i8
> v2i8_a) {
>
> + // Legal upper bounds.
>
> + v2i64_a = v2i64_a + (long long)0x7FFFFFFFFFFFFFFF;
>
> + v2i32_a = v2i32_a + (int)0x7FFFFFFF;
>
> + v2i16_a = v2i16_a + (short)0x7FFF;
>
> + v2i8_a = v2i8_a + (char)0x7F;
>
> +
>
> + // Legal lower bounds.
>
> + v2i64_a = v2i64_a + (-9223372036854775807);
>
> + v2i32_a = v2i32_a +
> (-2147483648 <(214)%20748-3648>);
>
> + v2i16_a = v2i16_a + (-32768);
>
> + v2i8_a = v2i8_a + (-128);
>
> +
>
> + // One increment/decrement more than the type can hold
>
> + v2i32_a = v2i32_a +
> 2147483648 <(214)%20748-3648>; // expected-warning {{implicit conversion
> from 'long' to 'v2i32' (vector of 2 'int' values) changes value from
> 2147483648 <(214)%20748-3648> to -2147483648 <(214)%20748-3648>}}
>
> + v2i16_a = v2i16_a + 32768; // expected-warning {{implicit
> conversion from 'int' to 'v2i16' (vector of 2 'short' values) changes value
> from 32768 to -32768}}
>
> + v2i8_a = v2i8_a + 128; // expected-warning {{implicit
> conversion from 'int' to 'v2i8' (vector of 2 'char' values) changes value
> from 128 to -128}}
>
> +
>
> + v2i32_a = v2i32_a +
> (-2147483649 <(214)%20748-3649>); // expected-warning {{implicit
> conversion from 'long' to 'v2i32' (vector of 2 'int' values) changes value
> from -2147483649 <(214)%20748-3649> to
> 2147483647 <(214)%20748-3647>}}
>
> + v2i16_a = v2i16_a + (-32769); // expected-warning {{implicit
> conversion from 'int' to 'v2i16' (vector of 2 'short' values) changes value
> from -32769 to 32767}}
>
> + v2i8_a = v2i8_a + (-129); // expected-error {{cannot convert
> between scalar type 'int' and vector type 'v2i8' (vector of 2 'char'
> values) as implicit conversion would cause truncation}}
>
> +}
>
>
>
> Added: cfe/trunk/test/Sema/vector-gcc-compat.cpp
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/vector-gcc-compat.cpp?rev=302935&view=auto
>
>
> ==============================================================================
>
> --- cfe/trunk/test/Sema/vector-gcc-compat.cpp (added)
>
> +++ cfe/trunk/test/Sema/vector-gcc-compat.cpp Fri May 12 14:11:06 2017
>
> @@ -0,0 +1,328 @@
>
> +// RUN: %clang_cc1 %s -verify -fsyntax-only -Weverything -std=c++11
>
> +
>
> +// Test the compatibility of clang++'s vector extensions with g++'s vector
>
> +// extensions. In comparison to the extensions available in C, the !, ?:,
> && and
>
> +// || operators work on vector types.
>
> +
>
> +typedef long long v2i64 __attribute__((vector_size(16))); //
> expected-warning {{'long long' is incompatible with C++98}}
>
> +typedef int v2i32 __attribute__((vector_size(8)));
>
> +typedef short v2i16 __attribute__((vector_size(4)));
>
> +typedef char v2i8 __attribute__((vector_size(2)));
>
> +
>
> +typedef unsigned long long v2u64 __attribute__((vector_size(16))); //
> expected-warning {{'long long' is incompatible with C++98}}
>
> +typedef unsigned int v2u32 __attribute__((vector_size(8)));
>
> +typedef unsigned short v2u16 __attribute__((vector_size(4)));
>
> +typedef unsigned char v2u8 __attribute__((vector_size(2)));
>
> +
>
> +typedef float v4f32 __attribute__((vector_size(16)));
>
> +typedef double v2f64 __attribute__((vector_size(16)));
>
> +typedef double v4f64 __attribute__((vector_size(32)));
>
> +typedef int v4i32 __attribute((vector_size(16)));
>
> +
>
> +void arithmeticTest(void);
>
> +void logicTest(void);
>
> +void comparisonTest(void);
>
> +void floatTestSignedType(char a, short b, int c, long long d); //
> expected-warning {{'long long' is incompatible with C++98}}
>
> +void floatTestUnsignedType(unsigned char a, unsigned short b, unsigned
> int c,
>
> + unsigned long long d); // expected-warning
> {{'long long' is incompatible with C++98}}
>
> +void floatTestConstant(void);
>
> +void intTestType(char a, short b, int c, long long d); //
> expected-warning {{'long long' is incompatible with C++98}}
>
> +void intTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d); // expected-warning
> {{'long long' is incompatible with C++98}}
>
> +void uintTestType(char a, short b, int c, long long d); //
> expected-warning {{'long long' is incompatible with C++98}}
>
> +void uintTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d); // expected-warning
> {{'long long' is incompatible with C++98}}
>
> +void uintTestConstant(v2u64 v2u64_a, v2u32 v2u32_a, v2u16 v2u16_a, v2u8
> v2u8_a);
>
> +void intTestConstant(v2i64 v2i64_a, v2i32 v2i32_a, v2i16 v2i16_a, v2i8
> v2i8_a);
>
> +
>
> +void arithmeticTest(void) {
>
> + v2i64 v2i64_a = (v2i64){0, 1}; // expected-warning {{compound literals
> are a C99-specific feature}}
>
> + v2i64 v2i64_r;
>
> +
>
> + v2i64_r = v2i64_a + 1;
>
> + v2i64_r = v2i64_a - 1;
>
> + v2i64_r = v2i64_a * 1;
>
> + v2i64_r = v2i64_a / 1;
>
> + v2i64_r = v2i64_a % 1;
>
> +
>
> + v2i64_r = 1 + v2i64_a;
>
> + v2i64_r = 1 - v2i64_a;
>
> + v2i64_r = 1 * v2i64_a;
>
> + v2i64_r = 1 / v2i64_a;
>
> + v2i64_r = 1 % v2i64_a;
>
> +
>
> + v2i64_a += 1;
>
> + v2i64_a -= 1;
>
> + v2i64_a *= 1;
>
> + v2i64_a /= 1;
>
> + v2i64_a %= 1;
>
> +}
>
> +
>
> +void comparisonTest(void) {
>
> + v2i64 v2i64_a = (v2i64){0, 1}; // expected-warning {{compound literals
> are a C99-specific feature}}
>
> + v2i64 v2i64_r;
>
> +
>
> + v2i64_r = v2i64_a == 1;
>
> + v2i64_r = v2i64_a != 1;
>
> + v2i64_r = v2i64_a < 1;
>
> + v2i64_r = v2i64_a > 1;
>
> + v2i64_r = v2i64_a <= 1;
>
> + v2i64_r = v2i64_a >= 1;
>
> +
>
> + v2i64_r = 1 == v2i64_a;
>
> + v2i64_r = 1 != v2i64_a;
>
> + v2i64_r = 1 < v2i64_a;
>
> + v2i64_r = 1 > v2i64_a;
>
> + v2i64_r = 1 <= v2i64_a;
>
> + v2i64_r = 1 >= v2i64_a;
>
> +}
>
> +
>
> +void logicTest(void) {
>
> + v2i64 v2i64_a = (v2i64){0, 1}; // expected-warning {{compound literals
> are a C99-specific feature}}
>
> + v2i64 v2i64_b = (v2i64){2, 1}; // expected-warning {{compound literals
> are a C99-specific feature}}
>
> + v2i64 v2i64_c = (v2i64){3, 1}; // expected-warning {{compound literals
> are a C99-specific feature}}
>
> + v2i64 v2i64_r;
>
> +
>
> + v2i64_r = !v2i64_a; // expected-error {{invalid argument type 'v2i64'
> (vector of 2 'long long' values) to unary expression}}
>
> + v2i64_r = ~v2i64_a;
>
> +
>
> + v2i64_r = v2i64_a ? v2i64_b : v2i64_c; // expected-error {{value of
> type 'v2i64' (vector of 2 'long long' values) is not contextually
> convertible to 'bool'}}
>
> +
>
> + v2i64_r = v2i64_a & 1;
>
> + v2i64_r = v2i64_a | 1;
>
> + v2i64_r = v2i64_a ^ 1;
>
> +
>
> + v2i64_r = 1 & v2i64_a;
>
> + v2i64_r = 1 | v2i64_a;
>
> + v2i64_r = 1 ^ v2i64_a;
>
> + v2i64_a &= 1;
>
> + v2i64_a |= 1;
>
> + v2i64_a ^= 1;
>
> +
>
> + v2i64_r = v2i64_a && 1;
>
> + v2i64_r = v2i64_a || 1;
>
> +
>
> + v2i64_r = v2i64_a << 1;
>
> + v2i64_r = v2i64_a >> 1;
>
> +
>
> + v2i64_r = 1 << v2i64_a;
>
> + v2i64_r = 1 >> v2i64_a;
>
> +
>
> + v2i64_a <<= 1;
>
> + v2i64_a >>= 1;
>
> +}
>
> +
>
> +// For operations with floating point types, we check that interger
> constants
>
> +// can be respresented, or failing that checking based on the integer
> types.
>
> +void floatTestConstant(void) {
>
> + // Test that constants added to floats must be expressible as floating
> point
>
> + // numbers.
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4f32_a = v4f32_a + 1;
>
> + v4f32_a = v4f32_a + 0xFFFFFF;
>
> + v4f32_a = v4f32_a + (-1567563LL); // expected-warning {{'long long' is
> incompatible with C++98}}
>
> + v4f32_a = v4f32_a + (16777208);
>
> + v4f32_a = v4f32_a + (16777219); // expected-error {{cannot convert
> between scalar type 'int' and vector type 'v4f32' (vector of 4 'float'
> values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void floatTestConstantComparison(void);
>
> +void doubleTestConstantComparison(void);
>
> +
>
> +void floatTestConstantComparison(void) {
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4i32 v4i32_r;
>
> + v4i32_r = v4f32_a > 0.4f;
>
> + v4i32_r = v4f32_a >= 0.4f;
>
> + v4i32_r = v4f32_a < 0.4f;
>
> + v4i32_r = v4f32_a <= 0.4f;
>
> + v4i32_r = v4f32_a == 0.4f; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> + v4i32_r = v4f32_a != 0.4f; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> +}
>
> +
>
> +void doubleTestConstantComparison(void) {
>
> + v2f64 v2f64_a = {0.4, 0.4};
>
> + v2i64 v2i64_r;
>
> + v2i64_r = v2f64_a > 0.4;
>
> + v2i64_r = v2f64_a >= 0.4;
>
> + v2i64_r = v2f64_a < 0.4;
>
> + v2i64_r = v2f64_a <= 0.4;
>
> + v2i64_r = v2f64_a == 0.4; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> + v2i64_r = v2f64_a != 0.4; // expected-warning {{comparing floating
> point with == or != is unsafe}}
>
> +}
>
> +
>
> +void floatTestUnsignedType(unsigned char a, unsigned short b, unsigned
> int c,
>
> + unsigned long long d) { // expected-warning
> {{'long long' is incompatible with C++98}}
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4f64 v4f64_b = {0.4, 0.4, 0.4, 0.4};
>
> +
>
> + v4f32_a = v4f32_a + a;
>
> + v4f32_a = v4f32_a + b;
>
> + v4f32_a = v4f32_a + c; // expected-error {{cannot convert between
> scalar type 'unsigned int' and vector type 'v4f32' (vector of 4 'float'
> values) as implicit conversion would cause truncation}}
>
> + v4f32_a = v4f32_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v4f32' (vector of 4
> 'float' values) as implicit conversion would cause truncation}}
>
> +
>
> + v4f64_b = v4f64_b + a;
>
> + v4f64_b = v4f64_b + b;
>
> + v4f64_b = v4f64_b + c;
>
> + v4f64_b = v4f64_b + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v4f64' (vector of 4
> 'double' values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void floatTestSignedType(char a, short b, int c, long long d) { //
> expected-warning {{'long long' is incompatible with C++98}}
>
> + v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
>
> + v4f64 v4f64_b = {0.4, 0.4, 0.4, 0.4};
>
> +
>
> + v4f32_a = v4f32_a + a;
>
> + v4f32_a = v4f32_a + b;
>
> + v4f32_a = v4f32_a + c; // expected-error {{cannot convert between
> scalar type 'int' and vector type 'v4f32' (vector of 4 'float' values) as
> implicit conversion would cause truncation}}
>
> + v4f32_a = v4f32_a + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v4f32' (vector of 4 'float'
> values) as implicit conversion would cause truncation}}
>
> +
>
> + v4f64_b = v4f64_b + a;
>
> + v4f64_b = v4f64_b + b;
>
> + v4f64_b = v4f64_b + c;
>
> + v4f64_b = v4f64_b + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v4f64' (vector of 4 'double'
> values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void intTestType(char a, short b, int c, long long d) { //
> expected-warning {{'long long' is incompatible with C++98}}
>
> + v2i64 v2i64_a = {1, 2};
>
> + v2i32 v2i32_a = {1, 2};
>
> + v2i16 v2i16_a = {1, 2};
>
> + v2i8 v2i8_a = {1, 2};
>
> +
>
> + v2i64_a = v2i64_a + d;
>
> + v2i64_a = v2i64_a + c;
>
> + v2i64_a = v2i64_a + b;
>
> + v2i64_a = v2i64_a + a;
>
> +
>
> + v2i32_a = v2i32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'long long' to 'v2i32' (vector of 2 'int' values)}}
>
> + v2i32_a = v2i32_a + c;
>
> + v2i32_a = v2i32_a + b;
>
> + v2i32_a = v2i32_a + a;
>
> +
>
> + v2i16_a = v2i16_a + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v2i16' (vector of 2 'short'
> values) as implicit conversion would cause truncation}}
>
> + v2i16_a = v2i16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'int' to 'v2i16' (vector of 2 'short' values)}}
>
> + v2i16_a = v2i16_a + b;
>
> + v2i16_a = v2i16_a + a;
>
> +
>
> + v2i8_a = v2i8_a + d; // expected-error {{cannot convert between scalar
> type 'long long' and vector type 'v2i8' (vector of 2 'char' values) as
> implicit conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + c; // expected-error {{cannot convert between scalar
> type 'int' and vector type 'v2i8' (vector of 2 'char' values) as implicit
> conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'short' to 'v2i8' (vector of 2 'char' values)}}
>
> + v2i8_a = v2i8_a + a;
>
> +}
>
> +
>
> +void intTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d) { // expected-warning
> {{'long long' is incompatible with C++98}}
>
> + v2i64 v2i64_a = {1, 2};
>
> + v2i32 v2i32_a = {1, 2};
>
> + v2i16 v2i16_a = {1, 2};
>
> + v2i8 v2i8_a = {1, 2};
>
> +
>
> + v2i64_a = v2i64_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v2i64' (vector of 2 'long
> long' values) as implicit conversion would cause truncation}}
>
> +
>
> + v2i64_a = v2i64_a + c;
>
> + v2i64_a = v2i64_a + b;
>
> + v2i64_a = v2i64_a + a;
>
> +
>
> + v2i32_a = v2i32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned long long' to 'v2i32' (vector of 2 'int'
> values)}}
>
> + v2i32_a = v2i32_a + c; // expected-error {{cannot convert between
> scalar type 'unsigned int' and vector type 'v2i32' (vector of 2 'int'
> values) as implicit conversion would cause truncation}}
>
> + v2i32_a = v2i32_a + b;
>
> + v2i32_a = v2i32_a + a;
>
> +
>
> + v2i16_a = v2i16_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v2i16' (vector of 2
> 'short' values) as implicit conversion would cause truncation}}
>
> + v2i16_a = v2i16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned int' to 'v2i16' (vector of 2 'short' values)}}
>
> + v2i16_a = v2i16_a + b; // expected-error {{cannot convert between
> scalar type 'unsigned short' and vector type 'v2i16' (vector of 2 'short'
> values) as implicit conversion would cause truncation}}
>
> + v2i16_a = v2i16_a + a;
>
> +
>
> + v2i8_a = v2i8_a + d; // expected-error {{cannot convert between scalar
> type 'unsigned long long' and vector type 'v2i8' (vector of 2 'char'
> values) as implicit conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + c; // expected-error {{cannot convert between scalar
> type 'unsigned int' and vector type 'v2i8' (vector of 2 'char' values) as
> implicit conversion would cause truncation}}
>
> + v2i8_a = v2i8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned short' to 'v2i8' (vector of 2 'char' values)}}
>
> + v2i8_a = v2i8_a + a; // expected-error {{cannot convert between scalar
> type 'unsigned char' and vector type 'v2i8' (vector of 2 'char' values) as
> implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void uintTestType(char a, short b, int c, long long d) { //
> expected-warning {{'long long' is incompatible with C++98}}
>
> + v2u64 v2u64_a = {1, 2};
>
> + v2u32 v2u32_a = {1, 2};
>
> + v2u16 v2u16_a = {1, 2};
>
> + v2u8 v2u8_a = {1, 2};
>
> +
>
> + v2u64_a = v2u64_a + d; // expected-warning {{implicit conversion
> changes signedness: 'long long' to 'v2u64' (vector of 2 'unsigned long
> long' values)}}
>
> + v2u64_a = v2u64_a + c; // expected-warning {{implicit conversion
> changes signedness: 'int' to 'v2u64' (vector of 2 'unsigned long long'
> values)}}
>
> + v2u64_a = v2u64_a + b; // expected-warning {{implicit conversion
> changes signedness: 'short' to 'v2u64' (vector of 2 'unsigned long long'
> values)}}
>
> + v2u64_a = v2u64_a + a; // expected-warning {{implicit conversion
> changes signedness: 'char' to 'v2u64' (vector of 2 'unsigned long long'
> values)}}
>
> +
>
> + v2u32_a = v2u32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'long long' to 'v2u32' (vector of 2 'unsigned int'
> values)}}
>
> + v2u32_a = v2u32_a + c; // expected-warning {{implicit conversion
> changes signedness: 'int' to 'v2u32' (vector of 2 'unsigned int' values)}}
>
> + v2u32_a = v2u32_a + b; // expected-warning {{implicit conversion
> changes signedness: 'short' to 'v2u32' (vector of 2 'unsigned int' values)}}
>
> + v2u32_a = v2u32_a + a; // expected-warning {{implicit conversion
> changes signedness: 'char' to 'v2u32' (vector of 2 'unsigned int' values)}}
>
> +
>
> + v2u16_a = v2u16_a + d; // expected-error {{cannot convert between
> scalar type 'long long' and vector type 'v2u16' (vector of 2 'unsigned
> short' values) as implicit conversion would cause truncation}}
>
> + v2u16_a = v2u16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'int' to 'v2u16' (vector of 2 'unsigned short' values)}}
>
> + v2u16_a = v2u16_a + b; // expected-warning {{implicit conversion
> changes signedness: 'short' to 'v2u16' (vector of 2 'unsigned short'
> values)}}
>
> + v2u16_a = v2u16_a + a; // expected-warning {{implicit conversion
> changes signedness: 'char' to 'v2u16' (vector of 2 'unsigned short'
> values)}}
>
> +
>
> + v2u8_a = v2u8_a + d; // expected-error {{cannot convert between scalar
> type 'long long' and vector type 'v2u8' (vector of 2 'unsigned char'
> values) as implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + c; // expected-error {{cannot convert between scalar
> type 'int' and vector type 'v2u8' (vector of 2 'unsigned char' values) as
> implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'short' to 'v2u8' (vector of 2 'unsigned char' values)}}
>
> + v2u8_a = v2u8_a + a; // expected-warning {{implicit conversion changes
> signedness: 'char' to 'v2u8' (vector of 2 'unsigned char' values)}}
>
> +}
>
> +
>
> +void uintTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int
> c,
>
> + unsigned long long d) { // expected-warning
> {{'long long' is incompatible with C++98}}
>
> + v2u64 v2u64_a = {1, 2};
>
> + v2u32 v2u32_a = {1, 2};
>
> + v2u16 v2u16_a = {1, 2};
>
> + v2u8 v2u8_a = {1, 2};
>
> +
>
> + v2u64_a = v2u64_a + d;
>
> + v2u64_a = v2u64_a + c;
>
> + v2u64_a = v2u64_a + b;
>
> + v2u64_a = v2u64_a + a;
>
> +
>
> + v2u32_a = v2u32_a + d; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned long long' to 'v2u32' (vector of 2 'unsigned
> int' values)}}
>
> + v2u32_a = v2u32_a + c;
>
> + v2u32_a = v2u32_a + b;
>
> + v2u32_a = v2u32_a + a;
>
> +
>
> + v2u16_a = v2u16_a + d; // expected-error {{cannot convert between
> scalar type 'unsigned long long' and vector type 'v2u16' (vector of 2
> 'unsigned short' values) as implicit conversion would cause truncation}}
>
> + v2u16_a = v2u16_a + c; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned int' to 'v2u16' (vector of 2 'unsigned short'
> values)}}
>
> + v2u16_a = v2u16_a + b;
>
> + v2u16_a = v2u16_a + a;
>
> +
>
> + v2u8_a = v2u8_a + d; // expected-error {{cannot convert between scalar
> type 'unsigned long long' and vector type 'v2u8' (vector of 2 'unsigned
> char' values) as implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + c; // expected-error {{cannot convert between scalar
> type 'unsigned int' and vector type 'v2u8' (vector of 2 'unsigned char'
> values) as implicit conversion would cause truncation}}
>
> + v2u8_a = v2u8_a + b; // expected-warning {{implicit conversion loses
> integer precision: 'unsigned short' to 'v2u8' (vector of 2 'unsigned char'
> values)}}
>
> + v2u8_a = v2u8_a + a;
>
> +}
>
> +
>
> +void uintTestConstant(v2u64 v2u64_a, v2u32 v2u32_a, v2u16 v2u16_a,
>
> + v2u8 v2u8_a) {
>
> + v2u64_a = v2u64_a + 0xFFFFFFFFFFFFFFFF;
>
> + v2u32_a = v2u32_a + 0xFFFFFFFF;
>
> + v2u16_a = v2u16_a + 0xFFFF;
>
> + v2u8_a = v2u8_a + 0xFF;
>
> +
>
> + v2u32_a = v2u32_a + 0x1FFFFFFFF; // expected-warning {{implicit
> conversion from 'long' to 'v2u32' (vector of 2 'unsigned int' values)
> changes value from 8589934591 to 4294967295}}
>
> + v2u16_a = v2u16_a + 0x1FFFF; // expected-warning {{implicit
> conversion from 'int' to 'v2u16' (vector of 2 'unsigned short' values)
> changes value from 131071 to 65535}}
>
> + v2u8_a = v2u8_a + 0x1FF; // expected-error {{cannot convert
> between scalar type 'int' and vector type 'v2u8' (vector of 2 'unsigned
> char' values) as implicit conversion would cause truncation}}
>
> +}
>
> +
>
> +void intTestConstant(v2i64 v2i64_a, v2i32 v2i32_a, v2i16 v2i16_a, v2i8
> v2i8_a) {
>
> + // Legal upper bounds.
>
> + v2i64_a = v2i64_a + static_cast<long long>(0x7FFFFFFFFFFFFFFF); //
> expected-warning {{'long long' is incompatible with C++98}}
>
> + v2i32_a = v2i32_a + static_cast<int>(0x7FFFFFFF);
>
> + v2i16_a = v2i16_a + static_cast<short>(0x7FFF);
>
> + v2i8_a = v2i8_a + static_cast<char>(0x7F);
>
> +
>
> + // Legal lower bounds.
>
> + v2i64_a = v2i64_a + (-9223372036854775807);
>
> + v2i32_a = v2i32_a +
> (-2147483648 <(214)%20748-3648>);
>
> + v2i16_a = v2i16_a + (-32768);
>
> + v2i8_a = v2i8_a + (-128);
>
> +
>
> + // One increment/decrement more than the type can hold
>
> + v2i32_a = v2i32_a +
> 2147483648 <(214)%20748-3648>; // expected-warning {{implicit conversion
> from 'long' to 'v2i32' (vector of 2 'int' values) changes value from
> 2147483648 <(214)%20748-3648> to -2147483648 <(214)%20748-3648>}}
>
> + v2i16_a = v2i16_a + 32768; // expected-warning {{implicit
> conversion from 'int' to 'v2i16' (vector of 2 'short' values) changes value
> from 32768 to -32768}}
>
> + v2i8_a = v2i8_a + 128; // expected-warning {{implicit
> conversion from 'int' to 'v2i8' (vector of 2 'char' values) changes value
> from 128 to -128}}
>
> +
>
> + v2i32_a = v2i32_a +
> (-2147483649 <(214)%20748-3649>); // expected-warning {{implicit
> conversion from 'long' to 'v2i32' (vector of 2 'int' values) changes value
> from -2147483649 to 2147483647}}
>
> + v2i16_a = v2i16_a + (-32769); // expected-warning {{implicit
> conversion from 'int' to 'v2i16' (vector of 2 'short' values) changes value
> from -32769 to 32767}}
>
> + v2i8_a = v2i8_a + (-129); // expected-error {{cannot convert
> between scalar type 'int' and vector type 'v2i8' (vector of 2 'char'
> values) as implicit conversion would cause truncation}}
>
> +}
>
>
>
> Modified: cfe/trunk/test/Sema/vector-ops.c
>
> URL:
>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/vector-ops.c?rev=302935&r1=302934&r2=302935&view=diff
>
>
> ==============================================================================
>
> --- cfe/trunk/test/Sema/vector-ops.c (original)
>
> +++ cfe/trunk/test/Sema/vector-ops.c Fri May 12 14:11:06 2017
>
> @@ -13,11 +13,11 @@ void test1(v2u v2ua, v2s v2sa, v2f v2fa)
>
> (void)(~v2fa); // expected-error{{invalid argument type 'v2f' (vector
> of 2 'float' values) to unary}}
>
>
>
> // Comparison operators
>
> - v2ua = (v2ua==v2sa); // expected-warning{{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2ua = (v2ua==v2sa); // expected-warning{{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values}}
>
> v2sa = (v2ua==v2sa);
>
>
>
> // Arrays
>
> - int array1[v2ua]; // expected-error{{size of array has non-integer type
> 'v2u' (vector of 2 'unsigned int' values)}}
>
> + int array1[v2ua]; // expected-error{{size of array has non-integer type
> 'v2u' (vector of 2 'unsigned int' values}}
>
> int array2[17];
>
> // FIXME: error message below needs type!
>
> (void)(array2[v2ua]); // expected-error{{array subscript is not an
> integer}}
>
> @@ -28,108 +28,108 @@ void test1(v2u v2ua, v2s v2sa, v2f v2fa)
>
> }
>
>
>
> void testLogicalVecVec(v2u v2ua, v2s v2sa, v2f v2fa) {
>
> -
>
> // Logical operators
>
> - v2ua = v2ua && v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2ua = v2ua || v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2ua = v2ua && v2ua; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
>
> + v2ua = v2ua || v2ua; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
>
>
>
> - v2ua = v2sa && v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2ua = v2sa || v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2ua = v2sa && v2ua; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned
> int' values)}}
>
> + v2ua = v2sa || v2ua; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned
> int' values)}}
>
>
>
> - v2ua = v2ua && v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2ua = v2ua || v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2ua = v2ua && v2fa; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2
> 'float' values)}}
>
> + v2ua = v2ua || v2fa; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2
> 'float' values)}}
>
>
>
> - v2ua = v2sa && v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2ua = v2sa || v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2u' (vector of 2 'unsigned int' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2ua = v2sa && v2fa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float'
> values)}}
>
> + v2ua = v2sa || v2fa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float'
> values)}}
>
>
>
> - v2sa = v2sa && v2sa;
>
> - v2sa = v2sa || v2sa;
>
> + v2sa = v2sa && v2sa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2s'}}
>
> + v2sa = v2sa || v2sa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2s'}}
>
>
>
> - v2sa = v2ua && v2ua;
>
> - v2sa = v2ua || v2ua;
>
> + v2sa = v2ua && v2ua; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
>
> + v2sa = v2ua || v2ua; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
>
>
>
> - v2sa = v2sa && v2ua;
>
> - v2sa = v2sa || v2ua;
>
> + v2sa = v2sa && v2ua; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned
> int' values)}}
>
> + v2sa = v2sa || v2ua; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned
> int' values)}}
>
>
>
> - v2sa = v2sa && v2fa;
>
> - v2sa = v2sa || v2fa;
>
> + v2sa = v2sa && v2fa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float'
> values)}}
>
> + v2sa = v2sa || v2fa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float'
> values)}}
>
>
>
> - v2sa = v2ua && v2fa;
>
> - v2sa = v2ua || v2fa;
>
> + v2sa = v2ua && v2fa; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2
> 'float' values)}}
>
> + v2sa = v2ua || v2fa; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2
> 'float' values)}}
>
>
>
> - v2fa = v2fa && v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2fa = v2fa || v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2fa = v2fa && v2fa; // expected-error {{logical expression with vector
> types 'v2f' (vector of 2 'float' values) and 'v2f'}}
>
> + v2fa = v2fa || v2fa; // expected-error {{logical expression with vector
> types 'v2f' (vector of 2 'float' values) and 'v2f'}}
>
>
>
> - v2fa = v2sa && v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2fa = v2sa || v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2fa = v2sa && v2fa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float'
> values)}}
>
> + v2fa = v2sa || v2fa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float'
> values)}}
>
>
>
> - v2fa = v2ua && v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2fa = v2ua || v2fa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2fa = v2ua && v2fa; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2
> 'float' values)}}
>
> + v2fa = v2ua || v2fa; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2
> 'float' values)}}
>
>
>
> - v2fa = v2ua && v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2fa = v2ua || v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2fa = v2ua && v2ua; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
>
> + v2fa = v2ua || v2ua; // expected-error {{logical expression with vector
> types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
>
>
>
> - v2fa = v2sa && v2sa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2fa = v2sa || v2sa; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2fa = v2sa && v2sa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2s'}}
>
> + v2fa = v2sa || v2sa; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2s'}}
>
>
>
> - v2fa = v2sa && v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> - v2fa = v2sa || v2ua; // expected-warning {{incompatible vector types
> assigning to 'v2f' (vector of 2 'float' values) from
> '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int'
> values)}}
>
> + v2fa = v2sa && v2ua; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned
> int' values)}}
>
> + v2fa = v2sa || v2ua; // expected-error {{logical expression with vector
> types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned
> int' values)}}
>
> }
>
>
>
> void testLogicalVecScalar(v2u v2ua, v2s v2sa, v2f v2fa) {
>
> -
>
> unsigned u1;
>
> - v2ua = v2ua && u1; // expected-error {{cannot convert between vector
> values of different size ('v2u' (vector of 2 'unsigned int' values) and
> 'unsigned int')}} expected-error {{invalid operands to binary expression
> ('v2u' (vector of 2 'unsigned int' values)
> and 'unsigned int')}}
>
> - v2ua = v2ua || u1; // expected-error {{cannot convert between vector
> values of different size ('v2u' (vector of 2 'unsigned int' values) and
> 'unsigned int')}} expected-error {{invalid operands to binary expression
> ('v2u' (vector of 2 'unsigned int' v
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