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f88190ab8b
This reapplies commit r22864 - it is not changing the public api as we initially thought. sqrt() was never available without importing Darwin. This change only changes where sqrt() gets "forwarded" to. Before 'sqrt' called the builtin '_sqrt' defined in BuiltinMath now it just calls the math library's 'sqrt' function. I also added a stdlib test. rdar://18371371 Swift SVN r22870
75 lines
2.1 KiB
Swift
75 lines
2.1 KiB
Swift
//===--- BuiltinMath.swift.gyb --------------------------------*- swift -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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%{
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# Don't need 64-bit (Double/CDouble) overlays. The ordinary C imports work fine.
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# FIXME: need 80-bit (Float80/long double) versions when long double is imported
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overlayFloatBits = [32] # 80
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allFloatBits = [32, 64] # 80
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def floatName(bits):
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if bits == 32:
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return 'Float'
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if bits == 64:
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return 'Double'
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if bits == 80:
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return 'Float80'
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def cFloatName(bits):
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if bits == 32:
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return 'CFloat'
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if bits == 64:
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return 'CDouble'
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if bits == 80:
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return 'CLongDouble'
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def cFuncSuffix(bits):
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if bits == 32:
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return 'f'
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if bits == 64:
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return ''
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if bits == 80:
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return 'l'
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# Each of the following lists is ordered to match math.h
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# These functions have a corresponding LLVM intrinsic
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# Note, keep this up to date with Darwin/tgmath.swift.gyb
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UnaryIntrinsicFunctions = ['cos', 'sin',
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'exp', 'exp2',
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'log', 'log10', 'log2',
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'fabs',
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'ceil', 'floor', 'nearbyint', 'rint', 'round', 'trunc',
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]
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def TypedUnaryIntrinsicFunctions():
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for ufunc in UnaryIntrinsicFunctions:
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for bits in allFloatBits:
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yield floatName(bits), cFloatName(bits), bits, ufunc
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}%
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// Unary intrinsic functions
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// Note these have a corresponding LLVM intrinsic
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% for T, CT, bits, ufunc in TypedUnaryIntrinsicFunctions():
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@transparent
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public func _${ufunc}(x: ${T}) -> ${T} {
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return ${T}(_bits: Builtin.int_${ufunc}_FPIEEE${bits}(x.value))
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}
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% end
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// ${'Local Variables'}:
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// eval: (read-only-mode 1)
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// End:
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