//===--- SIMDFloatConcreteOperations.swift --------------------*- swift -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2021-2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

%{
from SwiftIntTypes import all_integer_types
word_bits = int(CMAKE_SIZEOF_VOID_P) * 8
storagescalarCounts = [2,4,8,16,32,64]
vectorscalarCounts = storagescalarCounts + [3]
}%

%for (Scalar, bits) in [('Float16',16), ('Float',32), ('Double',64)]:
% for n in vectorscalarCounts:
%  Vector = "SIMD" + str(n) + "<" + Scalar + ">"
%  storageN = 4 if n == 3 else n
%  Builtin = "Vec" + str(storageN) + "xFPIEEE" + str(bits)
%  VecPre = "Vec" + str(storageN) + "x"
%  MaskExt = "Builtin.sext_" + VecPre + "Int1_" + VecPre + "Int" + str(bits)
%  if bits == 16:
#if !((os(macOS) || targetEnvironment(macCatalyst)) && arch(x86_64))
@available(SwiftStdlib 5.3, *)
%  end
extension SIMD${n} where Scalar == ${Scalar} {
  @_alwaysEmitIntoClient @_transparent
  internal init(_ _builtin: Builtin.${Builtin}) {
    _storage = ${Scalar}.SIMD${storageN}Storage(_builtin)
  }
  
  /// A vector with the specified scalar in all lanes.
  ///
  /// Equivalent to:
  /// ```
  /// var result = SIMD${n}<${Scalar}>()
  /// for i in result.indices {
  ///   result[i] = scalar
  /// }
  /// ```
  @_alwaysEmitIntoClient @_transparent
  public init(repeating scalar: ${Scalar}) {
    let asVector = Builtin.insertelement_${Builtin}_FPIEEE${bits}_Int32(
      Builtin.zeroInitializer(), scalar._value, Builtin.zeroInitializer()
    )
    let repeated = Builtin.shufflevector_${Builtin}_Vec${storageN}xInt32(
      asVector, Builtin.zeroInitializer(), Builtin.zeroInitializer()
    )
%if n != 3:
    self.init(repeated)
%else:
    self.init(Builtin.insertelement_${Builtin}_FPIEEE${bits}_Int32(
      repeated, Builtin.zeroInitializer(), Int32(3)._value
    ))
%end
  }
  
%  if n >= 4:
  /// A vector formed by concatenating lowHalf and highHalf.
  ///
  /// Equivalent to:
  /// ```
  /// var result = SIMD${n}<${Scalar}>()
  /// for i in 0..<${n//2} {
  ///   result[i] = lowHalf[i]
  ///   result[${n//2}+i] = highHalf[i]
  /// }
  /// ```
  @_alwaysEmitIntoClient @_transparent
  public init(
    lowHalf: SIMD${n//2}<${Scalar}>,
    highHalf: SIMD${n//2}<${Scalar}>
  ) {
    self = unsafe unsafeBitCast((lowHalf, highHalf), to: Self.self)
  }
  
%  end
%{
compares = [
  ("==", "oeq", "equal to"),
  ("!=", "une", "not equal to"),
  ("<",  "olt", "less than"),
  ("<=", "ole", "less than or equal to"),
  (">=", "oge", "greater than or equal to"),
  (">",  "ogt", "greater than")
]
}%
%  for (op, bi, description) in compares:
  /// Pointwise compare ${description}.
  ///
  /// Each lane of the result is true if that lane of a is ${description} the
  /// corresponding lane of b, and false otherwise.
  ///
  /// Equivalent to:
  /// ```
  /// var result = SIMDMask<MaskStorage>()
  /// for i in 0..<${n} {
  ///   result[i] = (a[i] ${op} b[i])
  /// }
  /// ```
  @_alwaysEmitIntoClient @_transparent
  public static func .${op}(a: Self, b: Self) -> SIMDMask<MaskStorage> {
    SIMDMask<MaskStorage>(${MaskExt}(
      Builtin.fcmp_${bi}_${Builtin}(a._storage._value, b._storage._value)
    ))
  }
  
  /// Pointwise compare ${description}.
  ///
  /// Each lane of the result is true if that lane of a is ${description} b,
  /// and false otherwise.
  ///
  /// Equivalent to:
  /// ```
  /// var result = SIMDMask<MaskStorage>()
  /// for i in 0..<${n} {
  ///   result[i] = (a[i] ${op} b)
  /// }
  /// ```
  @_alwaysEmitIntoClient @_transparent @_disfavoredOverload
  public static func .${op}(a: Self, b: Scalar) -> SIMDMask<MaskStorage> {
    a .${op} Self(repeating: b)
  }

  /// Pointwise compare ${description}.
  ///
  /// Each lane of the result is true if a is ${description} the corresponding
  /// lane of b, and false otherwise.
  ///
  /// Equivalent to:
  /// ```
  /// var result = SIMDMask<MaskStorage>()
  /// for i in 0..<${n} {
  ///   result[i] = (a ${op} b[i])
  /// }
  /// ```
  @_alwaysEmitIntoClient @_transparent @_disfavoredOverload
  public static func .${op}(a: Scalar, b: Self) -> SIMDMask<MaskStorage> {
    Self(repeating: a) .${op} b
  }

%  end
}
%  if bits == 16:
#endif
%  end

% end
%end