[gcc r12-9664] libstdc++: Fix test assumptions on long and long double

[gcc r12-9664] libstdc++: Fix test assumptions on long and long double

[Matthias Kretz]

https://gcc.gnu.org/g:c6ce93538145372d2d6077e3991a3053c1262e14

commit r12-9664-gc6ce93538145372d2d6077e3991a3053c1262e14
Author: Matthias Kretz <m.kretz@gsi.de>
Date:   Thu May 25 12:07:45 2023 +0200

    libstdc++: Fix test assumptions on long and long double
    
    Expect that long might not fit into the long double mantissa bits.
    
    Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
            double <-> (u)long conversion tests conditional on sizeof(long
            double) and sizeof(long).
    
    (cherry picked from commit 291549d43e823f163fa9961e42a751b5ce0d57fb)

Diff:
---
 .../experimental/simd/tests/operator_cvt.cc        | 30 +++++++++++++++++-----
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/libstdc++-v3/testsuite/experimental/simd/tests/operator_cvt.cc b/libstdc++-v3/testsuite/experimental/simd/tests/operator_cvt.cc
index 3241d33f654..6f9d3c3b780 100644
--- a/libstdc++-v3/testsuite/experimental/simd/tests/operator_cvt.cc
+++ b/libstdc++-v3/testsuite/experimental/simd/tests/operator_cvt.cc
@@ -220,8 +220,6 @@ template <typename V>
 	binary_op_return_type<vldouble, short>();
 	binary_op_return_type<vldouble, ushort>();
 	binary_op_return_type<vldouble, uint>();
-	binary_op_return_type<vldouble, long>();
-	binary_op_return_type<vldouble, ulong>();
 	binary_op_return_type<vldouble, float>();
 	binary_op_return_type<vldouble, double>();
 
@@ -231,8 +229,6 @@ template <typename V>
 	binary_op_return_type<vf64<long double>, ushort>();
 	binary_op_return_type<vf64<long double>, int>();
 	binary_op_return_type<vf64<long double>, uint>();
-	binary_op_return_type<vf64<long double>, long>();
-	binary_op_return_type<vf64<long double>, ulong>();
 	binary_op_return_type<vf64<long double>, float>();
 	binary_op_return_type<vf64<long double>, double>();
 	binary_op_return_type<vf64<long double>, vf64<long double>>();
@@ -245,8 +241,6 @@ template <typename V>
 	binary_op_return_type<simd<long double, A>, ushort>();
 	binary_op_return_type<simd<long double, A>, int>();
 	binary_op_return_type<simd<long double, A>, uint>();
-	binary_op_return_type<simd<long double, A>, long>();
-	binary_op_return_type<simd<long double, A>, ulong>();
 	binary_op_return_type<simd<long double, A>, float>();
 	binary_op_return_type<simd<long double, A>, double>();
 
@@ -258,6 +252,24 @@ template <typename V>
 	    VERIFY((is_substitution_failure<vf64<ldouble>, ullong>));
 	    VERIFY((is_substitution_failure<simd<ldouble, A>, llong>));
 	    VERIFY((is_substitution_failure<simd<ldouble, A>, ullong>));
+	    if constexpr (sizeof(long) == sizeof(llong))
+	      {
+		VERIFY((is_substitution_failure<vldouble, long>));
+		VERIFY((is_substitution_failure<vldouble, ulong>));
+		VERIFY((is_substitution_failure<vf64<ldouble>, long>));
+		VERIFY((is_substitution_failure<vf64<ldouble>, ulong>));
+		VERIFY((is_substitution_failure<simd<ldouble, A>, long>));
+		VERIFY((is_substitution_failure<simd<ldouble, A>, ulong>));
+	      }
+	    else
+	      {
+		binary_op_return_type<vldouble, long>();
+		binary_op_return_type<vldouble, ulong>();
+		binary_op_return_type<vf64<long double>, long>();
+		binary_op_return_type<vf64<long double>, ulong>();
+		binary_op_return_type<simd<long double, A>, long>();
+		binary_op_return_type<simd<long double, A>, ulong>();
+	      }
 	  }
 	else
 	  {
@@ -267,6 +279,12 @@ template <typename V>
 	    binary_op_return_type<vf64<long double>, ullong>();
 	    binary_op_return_type<simd<long double, A>, llong>();
 	    binary_op_return_type<simd<long double, A>, ullong>();
+	    binary_op_return_type<vldouble, long>();
+	    binary_op_return_type<vldouble, ulong>();
+	    binary_op_return_type<vf64<long double>, long>();
+	    binary_op_return_type<vf64<long double>, ulong>();
+	    binary_op_return_type<simd<long double, A>, long>();
+	    binary_op_return_type<simd<long double, A>, ulong>();
 	  }
 
 	VERIFY((is_substitution_failure<vf64<long double>, vldouble>));