Android cross-compile on macOS: Fix for compile error addressed Float80 data type. (#25502)

* Fixes issue addressed Float80 data type. Float80 is disabled for Intel architectures (i.e. Android Simulator).

* More precise condition check.

Author: vgorloff

include/swift/Runtime/SwiftDtoa.h

@@ -30,6 +30,8 @@
 #if defined(_WIN32)
  // Windows has `long double` == `double` on all platforms, so disable this.
  #undef SWIFT_DTOA_FLOAT80_SUPPORT
+#elif defined(__ANDROID__)
+ // At least for now Float80 is disabled. See: https://github.com/apple/swift/pull/25502
 #elif defined(__APPLE__) || defined(__linux__)
  // macOS and Linux support Float80 on X86 hardware but not on ARM
  #if defined(__x86_64__) || defined(__i386)

stdlib/public/Darwin/CoreGraphics/CGFloat.swift.gyb

@@ -46,7 +46,7 @@ public struct CGFloat {
     self.native = NativeType(value)
   }
 
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
   @_transparent public init(_ value: Float80) {
     self.native = NativeType(value)
   }

stdlib/public/Platform/Glibc.swift.gyb

@@ -36,7 +36,7 @@ public let FLT_RADIX = Double.radix
 
 %for type, prefix in [('Float', 'FLT'), ('Double', 'DBL'), ('Float80', 'LDBL')]:
 % if type == "Float80":
-#if arch(i386) || arch(x86_64)
+#if !os(Android) && (arch(i386) || arch(x86_64))
 % end
 //  Where does the 1 come from? C counts the usually-implicit leading
 //  significand bit, but Swift does not. Neither is really right or wrong.

stdlib/public/Platform/tgmath.swift.gyb

@@ -193,7 +193,7 @@ def TypedBinaryFunctions():
 // Note these do not have a corresponding LLVM intrinsic
 % for T, CT, f, ufunc in TypedUnaryFunctions():
 %  if T == 'Float80':
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 %  end
 @_transparent
 public func ${ufunc}(_ x: ${T}) -> ${T} {
@@ -220,7 +220,7 @@ public func tgamma(_ x: Float) -> Float {
   return Float.gamma(x)
 }
 
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 @_transparent
 public func cbrt(_ x: Float80) -> Float80 {
   return Float80.root(x, 3)
@@ -242,7 +242,7 @@ public func tgamma(_ x: Float80) -> Float80 {
 // Note these have a corresponding LLVM intrinsic
 % for T, ufunc in TypedUnaryIntrinsicFunctions():
 %  if T == 'Float80':
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 %  end
 %  if ufunc[-3:] != 'int':
 @_transparent
@@ -265,7 +265,7 @@ public func ${ufunc}(_ x: ${T}) -> ${T} {
 // Binary functions
 % for T, CT, f in OverlayFloatTypes():
 %  if T == 'Float80':
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 %  end
 @_transparent
 public func atan2(_ y: ${T}, _ x: ${T}) -> ${T} {
@@ -318,7 +318,7 @@ public func fmax(_ x: ${T}, _ y: ${T}) -> ${T} {
 % # This is AllFloatTypes not OverlayFloatTypes because of the tuple return.
 % for T, CT, f in AllFloatTypes():
 %  if T == 'Float80':
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 %  else:
 //  lgamma not available on Windows, apparently?
 #if !os(Windows)
@@ -334,7 +334,7 @@ public func lgamma(_ x: ${T}) -> (${T}, Int) {
 % # This is AllFloatTypes not OverlayFloatTypes because of the tuple return.
 % for T, CT, f in AllFloatTypes():
 %  if T == 'Float80':
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 %  end
 @_transparent
 public func remquo(_ x: ${T}, _ y: ${T}) -> (${T}, Int) {
@@ -350,7 +350,7 @@ public func remquo(_ x: ${T}, _ y: ${T}) -> (${T}, Int) {
 
 % for T, CT, f in OverlayFloatTypes():
 %  if T == 'Float80':
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 %  end
 @available(swift, deprecated: 4.2/*, obsoleted: 5.1*/, message:
            "use ${T}(nan: ${T}.RawSignificand).")

stdlib/public/SwiftShims/LibcShims.h

@@ -34,7 +34,7 @@ namespace swift { extern "C" {
 // This declaration might not be universally correct.
 // We verify its correctness for the current platform in the runtime code.
 #if defined(__linux__)
-# if defined(__ANDROID__) && !defined(__aarch64__)
+# if defined(__ANDROID__) && !(defined(__aarch64__) || defined(__x86_64__))
 typedef __swift_uint16_t __swift_mode_t;
 # else
 typedef __swift_uint32_t __swift_mode_t;

stdlib/public/core/FloatingPoint.swift

@@ -1497,7 +1497,7 @@ public protocol BinaryFloatingPoint: FloatingPoint, ExpressibleByFloatLiteral {
   /// - Parameter value: A floating-point value to be converted.
   init(_ value: Double)
 
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
   /// Creates a new instance from the given value, rounded to the closest
   /// possible representation.
   ///

stdlib/public/core/FloatingPointParsing.swift.gyb

@@ -39,7 +39,7 @@ internal func _isspace_clocale(_ u: UTF16.CodeUnit) -> Bool {
 %   Self = floatName(bits)
 
 % if bits == 80:
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 % end
 
 //===--- Parsing ----------------------------------------------------------===//

stdlib/public/core/FloatingPointTypes.swift.gyb

@@ -54,7 +54,7 @@ else:
 }%
 
 % if bits == 80:
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 % end
 
 ${SelfDocComment}
@@ -1664,7 +1664,7 @@ extension ${Self} {
 %   That = src_type.stdlib_name
 
 %   if (srcBits == 80) and (bits != 80):
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 %   end
 
 %   if srcBits == bits:

stdlib/public/core/IntegerTypes.swift.gyb

@@ -1128,7 +1128,7 @@ public struct ${Self}
 %     (lower, upper) = getFtoIBounds(floatBits=FloatBits, intBits=int(bits), signed=signed)
 
 %     if FloatType == 'Float80':
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 %     end
 
   /// Creates an integer from the given floating-point value, rounding toward

stdlib/public/core/MathFunctions.swift.gyb

@@ -62,7 +62,7 @@ public protocol ElementaryFunctions {
 
 %for type in all_floating_point_types():
 % if type.bits == 80:
-#if (arch(i386) || arch(x86_64)) && !os(Windows)
+#if (arch(i386) || arch(x86_64)) && !(os(Windows) || os(Android))
 % end
 % Self = type.stdlib_name
 extension ${Self}: ElementaryFunctions {

stdlib/public/core/Mirrors.swift.gyb

@@ -53,7 +53,7 @@ extension ${Type[0]} : _CustomPlaygroundQuickLookable {
 }
 % end
 
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 extension Float80 : CustomReflectable {
   /// A mirror that reflects the Float80 instance.
   public var customMirror: Mirror {

stdlib/public/core/Runtime.swift.gyb

@@ -153,7 +153,7 @@ internal struct _Buffer72 {
 % for bits in [ 32, 64, 80 ]:
 
 % if bits == 80:
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 % end
 
 @_silgen_name("swift_float${bits}ToString")

stdlib/public/core/VarArgs.swift

@@ -400,7 +400,7 @@ extension Double : _CVarArgPassedAsDouble, _CVarArgAligned {
   }
 }
 
-#if !os(Windows) && (arch(i386) || arch(x86_64))
+#if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64))
 extension Float80 : CVarArg, _CVarArgAligned {
   /// Transform `self` into a series of machine words that can be
   /// appropriately interpreted by C varargs.