[libcxx-commits] [libcxx] 0d5b359 - [libcxx] [test] Narrow down a MinGW bug workaround in rand.dist.uni.int/eval.pass.cpp

[Martin Storsjö via libcxx-commits]

Author: Martin Storsjö
Date: 2022-01-27T13:19:06+02:00
New Revision: 0d5b35934e010d4207b0b111e2e2905ba36fa77b

URL: https://github.com/llvm/llvm-project/commit/0d5b35934e010d4207b0b111e2e2905ba36fa77b
DIFF: https://github.com/llvm/llvm-project/commit/0d5b35934e010d4207b0b111e2e2905ba36fa77b.diff

LOG: [libcxx] [test] Narrow down a MinGW bug workaround in rand.dist.uni.int/eval.pass.cpp

Differential Revision: https://reviews.llvm.org/D118235

Added: 
    

Modified: 
    libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp

Removed: 
    


################################################################################
diff  --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
index 03ec0eaa37fa2..e36625af9ebe0 100644
--- a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
@@ -7,9 +7,6 @@
 //===----------------------------------------------------------------------===//
 //
 // REQUIRES: long_tests
-//
-// This fails on MinGW for some unknown reason.
-// UNSUPPORTED: target={{.+}}-windows-gnu
 
 // <random>
 
@@ -28,6 +25,12 @@
 
 #include "test_macros.h"
 
+// The __int128 conversions to/from floating point crash on MinGW on x86_64.
+// This is fixed in Clang 14 by https://reviews.llvm.org/D110413.
+#if defined(__x86_64__) && defined(__MINGW32__) && defined(__clang_major__) && __clang_major__ < 14
+ #define TEST_BUGGY_I128_FP
+#endif
+
 template <class T>
 T sqr(T x)
 {
@@ -130,7 +133,7 @@ int main(int, char**)
     // or unsigned long long.
     // (We support __int128 as an extension.)
 
-#ifndef _LIBCPP_HAS_NO_INT128
+#if !defined(_LIBCPP_HAS_NO_INT128) && !defined(TEST_BUGGY_I128_FP)
     test_statistics<__int128_t, std::minstd_rand0>();
     test_statistics<__uint128_t, std::minstd_rand0>();