Merge pull request #13182 from moiseev/double-size

Author: swift-ci

stdlib/public/core/CMakeLists.txt

@@ -47,7 +47,8 @@ set(SWIFTLIB_ESSENTIAL
   CString.swift
   CTypes.swift
   DebuggerSupport.swift
-  DoubleWidth.swift.gyb
+  # FIXME(double-width): <rdar://problem/32726173>
+  #DoubleWidth.swift.gyb
   DropWhile.swift.gyb
   Dump.swift
   EmptyCollection.swift

stdlib/public/core/Integers.swift.gyb

@@ -3378,14 +3378,15 @@ ${assignmentOperatorComment(x.operator, True)}
   ) -> (quotient: ${Self}, remainder: ${Self}) {
     // FIXME(integers): tests
 %   # 128 bit types are not provided by the 32-bit LLVM
-%   #if word_bits == 32 and bits == 64:
-%   if bits == 64:
-    let lhs = DoubleWidth<${Self}>(dividend)
-    let rhs = DoubleWidth<${Self}>(self)
+%   if word_bits == 32 and bits == 64:
+%   #if bits == 64: #FIXME(double-width): uncomment when DoubleWidth is back
+    // let lhs = DoubleWidth<${Self}>(dividend)
+    // let rhs = DoubleWidth<${Self}>(self)
 
-    let (quotient, remainder) = lhs.quotientAndRemainder(dividingBy: rhs)
+    // let (quotient, remainder) = lhs.quotientAndRemainder(dividingBy: rhs)
     // FIXME(integers): check for high words in quotient and remainder
-    return (${Self}(quotient.low), ${Self}(remainder.low))
+    // return (${Self}(quotient.low), ${Self}(remainder.low))
+    fatalError("Operation is not supported")
 %   else:
     // FIXME(integers): handle division by zero and overflows
     _precondition(self != 0, "Division by zero")

test/Constraints/diagnostics_swift4.swift

@@ -54,4 +54,5 @@ class R<K: Hashable, V> {
 infix operator +=+ : AdditionPrecedence
 func +=+(_ lhs: Int, _ rhs: Int) -> Bool { return lhs == rhs }
 func +=+<T: BinaryInteger>(_ lhs: T, _ rhs: Int) -> Bool { return lhs == rhs }
-let _ = DoubleWidth<Int>(Int.min) - 1 +=+ Int.min // Ok
+// FIXME: uncomment when <rdar://problem/32726173> is resolved and DoubleWidth is back
+// let _ = DoubleWidth<Int>(Int.min) - 1 +=+ Int.min // Ok

test/stdlib/DoubleWidth.swift

@@ -1,5 +1,7 @@
 // RUN: %target-run-simple-swift
 // REQUIRES: executable_test
+// FIXME(double-width): <rdar://problem/32726173>
+// REQUIRES: rdar32726173
 
 import StdlibUnittest