Merge pull request #19846 from drodriguez/android-aarch64-disable-powl

[android] Fix powl test in Android ARMv7/AArch64.

Author: drodriguez

stdlib/public/core/CTypes.swift

@@ -87,6 +87,12 @@ public typealias CLongDouble = Float80
 // Long Double type equivalent to Double type.
 public typealias CLongDouble = Double
 #endif
+#elseif os(Android)
+// On Android, long double is Float128 for AAPCS64, which we don't have yet in
+// Swift (SR-9072); and Double for ARMv7.
+#if arch(arm)
+public typealias CLongDouble = Double
+#endif
 #endif
 
 // FIXME: Is it actually UTF-32 on Darwin?

test/ClangImporter/cfuncs_parse.swift

@@ -58,9 +58,13 @@ func test_pow() {
   pow(1.5, 2.5)
 }
 
+#if !((os(Android) || os(Linux)) && arch(arm64))
+// long doubles in AAPCS64 are 128 bits, which is not supported by
+// Swift, so don't test this. SR-9072.
 func test_powl() {
   powl(1.5, 2.5)
 }
+#endif
 
 func test_puts(_ s: String) {
   _ = s.withCString { puts($0) + 32 };