[libcxx-commits] [PATCH] D111671: [libcxx] [test] Generalize the conditions for testing bitcasts between long double, double and int128

[Martin Storsjö via Phabricator via libcxx-commits]

mstorsjo updated this revision to Diff 379475.
mstorsjo added a comment.

Simplify the ifdefs, as suggested


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111671/new/

https://reviews.llvm.org/D111671

Files:
  libcxx/test/std/numerics/bit/bit.cast/bit_cast.pass.cpp


Index: libcxx/test/std/numerics/bit/bit.cast/bit_cast.pass.cpp
===================================================================
--- libcxx/test/std/numerics/bit/bit.cast/bit_cast.pass.cpp
+++ libcxx/test/std/numerics/bit/bit.cast/bit_cast.pass.cpp
@@ -227,16 +227,10 @@
         test_roundtrip_through_nested_T<false>(i);
         test_roundtrip_through_buffer<false>(i);
 
-        // On arm64 on Apple platforms, long double is just double, so we don't
-        // test against int128, but instead against double itself. Otherwise,
-        // we test against int128 if we have those types available.
-#if defined(__aarch64__) && defined(__APPLE__)
-#   define LONG_DOUBLE_IS_DOUBLE
-#endif
-
-#if defined(LONG_DOUBLE_IS_DOUBLE)
+#if __SIZEOF_LONG_DOUBLE__ == __SIZEOF_DOUBLE__
         test_roundtrip_through<double, false>(i);
-#elif !defined(_LIBCPP_HAS_NO_INT128)
+#endif
+#if defined(__SIZEOF_INT128__) && __SIZEOF_LONG_DOUBLE__ == __SIZEOF_INT128__
         test_roundtrip_through<__int128_t, false>(i);
         test_roundtrip_through<__uint128_t, false>(i);
 #endif


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