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| author | Peter Klausler <35819229+klausler@users.noreply.github.com> | 2024-06-18 12:46:15 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-06-18 12:46:15 -0700 |
| commit | 4b57fe65fdc6b8d7163f36440386d1e707d89381 (patch) | |
| tree | 1593e5fcbaff74572e7502a0ad5a9c55e44ca018 /flang/lib/Evaluate/intrinsics.cpp | |
| parent | d7b5741ad117a068537e2f0101999d1184acab4e (diff) | |
| download | llvm-4b57fe65fdc6b8d7163f36440386d1e707d89381.zip llvm-4b57fe65fdc6b8d7163f36440386d1e707d89381.tar.gz llvm-4b57fe65fdc6b8d7163f36440386d1e707d89381.tar.bz2 | |
[flang] Fold IEEE_SUPPORT_xxx() intrinsic functions (#95866)
All of the IEEE_SUPPORT_xxx() intrinsic functions must fold to constant
logical values when they have constant arguments; and since they fold to
.TRUE. for currently support architectures, always fold them. But also
put in the infrastructure whereby a driver can initialize Evaluate's
target information to set some of them to .FALSE. if that becomes
necessary.
Diffstat (limited to 'flang/lib/Evaluate/intrinsics.cpp')
| -rw-r--r-- | flang/lib/Evaluate/intrinsics.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/flang/lib/Evaluate/intrinsics.cpp b/flang/lib/Evaluate/intrinsics.cpp index 1bba541..2733f99 100644 --- a/flang/lib/Evaluate/intrinsics.cpp +++ b/flang/lib/Evaluate/intrinsics.cpp @@ -88,6 +88,8 @@ ENUM_CLASS(KindCode, none, defaultIntegerKind, sameKind, operand, // match any kind, with promotion (non-standard) typeless, // BOZ literals are INTEGER with this kind + ieeeFlagType, // IEEE_FLAG_TYPE from ISO_FORTRAN_EXCEPTION + ieeeRoundType, // IEEE_ROUND_TYPE from ISO_FORTRAN_ARITHMETIC teamType, // TEAM_TYPE from module ISO_FORTRAN_ENV (for coarrays) kindArg, // this argument is KIND= effectiveKind, // for function results: "kindArg" value, possibly defaulted @@ -121,6 +123,9 @@ static constexpr TypePattern DefaultChar{CharType, KindCode::defaultCharKind}; static constexpr TypePattern DefaultLogical{ LogicalType, KindCode::defaultLogicalKind}; static constexpr TypePattern BOZ{IntType, KindCode::typeless}; +static constexpr TypePattern IeeeFlagType{DerivedType, KindCode::ieeeFlagType}; +static constexpr TypePattern IeeeRoundType{ + DerivedType, KindCode::ieeeRoundType}; static constexpr TypePattern TeamType{DerivedType, KindCode::teamType}; static constexpr TypePattern DoublePrecision{ RealType, KindCode::doublePrecision}; @@ -940,6 +945,12 @@ static const IntrinsicInterface genericIntrinsicFunction[]{ {"__builtin_ieee_support_divide", {{"x", AnyReal, Rank::elemental, Optionality::optional}}, DefaultLogical}, + {"__builtin_ieee_support_flag", + {{"flag", IeeeFlagType, Rank::scalar}, + {"x", AnyReal, Rank::elemental, Optionality::optional}}, + DefaultLogical}, + {"__builtin_ieee_support_halting", {{"flag", IeeeFlagType, Rank::scalar}}, + DefaultLogical}, {"__builtin_ieee_support_inf", {{"x", AnyReal, Rank::elemental, Optionality::optional}}, DefaultLogical}, @@ -949,6 +960,10 @@ static const IntrinsicInterface genericIntrinsicFunction[]{ {"__builtin_ieee_support_nan", {{"x", AnyReal, Rank::elemental, Optionality::optional}}, DefaultLogical}, + {"__builtin_ieee_support_rounding", + {{"round_value", IeeeRoundType, Rank::scalar}, + {"x", AnyReal, Rank::elemental, Optionality::optional}}, + DefaultLogical}, {"__builtin_ieee_support_sqrt", {{"x", AnyReal, Rank::elemental, Optionality::optional}}, DefaultLogical}, @@ -1851,6 +1866,16 @@ std::optional<SpecificCall> IntrinsicInterface::Match( case KindCode::typeless: argOk = false; break; + case KindCode::ieeeFlagType: + argOk = !type->IsUnlimitedPolymorphic() && + type->category() == TypeCategory::Derived && + semantics::IsIeeeFlagType(&type->GetDerivedTypeSpec()); + break; + case KindCode::ieeeRoundType: + argOk = !type->IsUnlimitedPolymorphic() && + type->category() == TypeCategory::Derived && + semantics::IsIeeeRoundType(&type->GetDerivedTypeSpec()); + break; case KindCode::teamType: argOk = !type->IsUnlimitedPolymorphic() && type->category() == TypeCategory::Derived && |