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author | Joseph Myers <joseph@codesourcery.com> | 2022-09-30 19:36:41 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2022-09-30 19:36:41 +0000 |
commit | ba70f6959876b6daba180afbe427710e4383e357 (patch) | |
tree | 51503b85a9b486a15eedbdd0ded7b6ba3ed60f9f /math/test-math-iseqsig.cc | |
parent | 609c9d0951da387cd523b5db42a82d38dabc37c4 (diff) | |
download | glibc-ba70f6959876b6daba180afbe427710e4383e357.tar.gz glibc-ba70f6959876b6daba180afbe427710e4383e357.tar.xz glibc-ba70f6959876b6daba180afbe427710e4383e357.zip |
Fix iseqsig for _FloatN and _FloatNx in C++ with GCC 13
With GCC 13, _FloatN and _FloatNx types, when they exist, are distinct types like they are in C with GCC 7 and later, rather than typedefs for types such as float, double or long double. This breaks the templated iseqsig implementation for C++ in <math.h>, when used with types that were previously implemented as aliases. Add the necessary definitions for _Float32, _Float64, _Float128 (when the same format as long double), _Float32x and _Float64x in this case, so that iseqsig can be used with such types in C++ with GCC 13 as it could with previous GCC versions. Also add tests for calling iseqsig in C++ with arguments of such types (more minimal than existing tests, so that they can work with older GCC versions and without relying on any C++ library support for the types or on hardcoding details of their formats). The LDBL_MANT_DIG != 106 conditionals on some tests are because the type-generic comparison macros have undefined behavior when neither argument has a type whose set of values is a subset of those for the type of the other argument, which applies when one argument is IBM long double and the other is an IEEE format wider than binary64. Tested with build-many-glibcs.py glibcs build for aarch64-linux-gnu i686-linux-gnu mips-linux-gnu mips64-linux-gnu-n32 powerpc-linux-gnu powerpc64le-linux-gnu x86_64-linux-gnu.
Diffstat (limited to 'math/test-math-iseqsig.cc')
-rw-r--r-- | math/test-math-iseqsig.cc | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/math/test-math-iseqsig.cc b/math/test-math-iseqsig.cc index 59a84d57bd..44be4aeba8 100644 --- a/math/test-math-iseqsig.cc +++ b/math/test-math-iseqsig.cc @@ -17,6 +17,7 @@ <https://www.gnu.org/licenses/>. */ #define _GNU_SOURCE 1 +#include <float.h> #include <math.h> #include <stdio.h> @@ -67,6 +68,20 @@ check_type () } } +/* Run minimal tests of iseqsig for a pair of types, without relying + on C++ library support or knowledge of the representation. */ +template <class T1, class T2> +static void +check_type_minimal () +{ + T1 t1 = 0; + T2 t2 = 0; + CHECK (iseqsig (t1, t2), 1); + + t2 = 1; + CHECK (iseqsig (t1, t2), 0); +} + #if __HAVE_DISTINCT_FLOAT128 static void check_float128 () @@ -105,6 +120,281 @@ do_test (void) #if __HAVE_DISTINCT_FLOAT128 check_float128 (); #endif + +#if __HAVE_FLOAT16 + check_type_minimal<float, _Float16> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<float, _Float32> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<float, _Float64> (); +#endif +#if __HAVE_FLOAT128 + check_type_minimal<float, _Float128> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<float, _Float32x> (); +#endif +#if __HAVE_FLOAT64X + check_type_minimal<float, _Float64x> (); +#endif +#if __HAVE_FLOAT128X + check_type_minimal<float, _Float128x> (); +#endif +#if __HAVE_FLOAT16 + check_type_minimal<double, _Float16> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<double, _Float32> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<double, _Float64> (); +#endif +#if __HAVE_FLOAT128 + check_type_minimal<double, _Float128> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<double, _Float32x> (); +#endif +#if __HAVE_FLOAT64X + check_type_minimal<double, _Float64x> (); +#endif +#if __HAVE_FLOAT128X + check_type_minimal<double, _Float128x> (); +#endif +#if __HAVE_FLOAT16 + check_type_minimal<long double, _Float16> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<long double, _Float32> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<long double, _Float64> (); +#endif +#if __HAVE_FLOAT128 && LDBL_MANT_DIG != 106 + check_type_minimal<long double, _Float128> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<long double, _Float32x> (); +#endif +#if __HAVE_FLOAT64X && LDBL_MANT_DIG != 106 + check_type_minimal<long double, _Float64x> (); +#endif +#if __HAVE_FLOAT128X && LDBL_MANT_DIG != 106 + check_type_minimal<long double, _Float128x> (); +#endif +#if __HAVE_FLOAT16 + check_type_minimal<_Float16, float> (); +#endif +#if __HAVE_FLOAT16 + check_type_minimal<_Float16, double> (); +#endif +#if __HAVE_FLOAT16 + check_type_minimal<_Float16, long double> (); +#endif +#if __HAVE_FLOAT16 + check_type_minimal<_Float16, _Float16> (); +#endif +#if __HAVE_FLOAT16 && __HAVE_FLOAT32 + check_type_minimal<_Float16, _Float32> (); +#endif +#if __HAVE_FLOAT16 && __HAVE_FLOAT64 + check_type_minimal<_Float16, _Float64> (); +#endif +#if __HAVE_FLOAT16 && __HAVE_FLOAT128 + check_type_minimal<_Float16, _Float128> (); +#endif +#if __HAVE_FLOAT16 && __HAVE_FLOAT32X + check_type_minimal<_Float16, _Float32x> (); +#endif +#if __HAVE_FLOAT16 && __HAVE_FLOAT64X + check_type_minimal<_Float16, _Float64x> (); +#endif +#if __HAVE_FLOAT16 && __HAVE_FLOAT128X + check_type_minimal<_Float16, _Float128x> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<_Float32, float> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<_Float32, double> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<_Float32, long double> (); +#endif +#if __HAVE_FLOAT32 && __HAVE_FLOAT16 + check_type_minimal<_Float32, _Float16> (); +#endif +#if __HAVE_FLOAT32 + check_type_minimal<_Float32, _Float32> (); +#endif +#if __HAVE_FLOAT32 && __HAVE_FLOAT64 + check_type_minimal<_Float32, _Float64> (); +#endif +#if __HAVE_FLOAT32 && __HAVE_FLOAT128 + check_type_minimal<_Float32, _Float128> (); +#endif +#if __HAVE_FLOAT32 && __HAVE_FLOAT32X + check_type_minimal<_Float32, _Float32x> (); +#endif +#if __HAVE_FLOAT32 && __HAVE_FLOAT64X + check_type_minimal<_Float32, _Float64x> (); +#endif +#if __HAVE_FLOAT32 && __HAVE_FLOAT128X + check_type_minimal<_Float32, _Float128x> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<_Float64, float> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<_Float64, double> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<_Float64, long double> (); +#endif +#if __HAVE_FLOAT64 && __HAVE_FLOAT16 + check_type_minimal<_Float64, _Float16> (); +#endif +#if __HAVE_FLOAT64 && __HAVE_FLOAT32 + check_type_minimal<_Float64, _Float32> (); +#endif +#if __HAVE_FLOAT64 + check_type_minimal<_Float64, _Float64> (); +#endif +#if __HAVE_FLOAT64 && __HAVE_FLOAT128 + check_type_minimal<_Float64, _Float128> (); +#endif +#if __HAVE_FLOAT64 && __HAVE_FLOAT32X + check_type_minimal<_Float64, _Float32x> (); +#endif +#if __HAVE_FLOAT64 && __HAVE_FLOAT64X + check_type_minimal<_Float64, _Float64x> (); +#endif +#if __HAVE_FLOAT64 && __HAVE_FLOAT128X + check_type_minimal<_Float64, _Float128x> (); +#endif +#if __HAVE_FLOAT128 + check_type_minimal<_Float128, float> (); +#endif +#if __HAVE_FLOAT128 + check_type_minimal<_Float128, double> (); +#endif +#if __HAVE_FLOAT128 && LDBL_MANT_DIG != 106 + check_type_minimal<_Float128, long double> (); +#endif +#if __HAVE_FLOAT128 && __HAVE_FLOAT16 + check_type_minimal<_Float128, _Float16> (); +#endif +#if __HAVE_FLOAT128 && __HAVE_FLOAT32 + check_type_minimal<_Float128, _Float32> (); +#endif +#if __HAVE_FLOAT128 && __HAVE_FLOAT64 + check_type_minimal<_Float128, _Float64> (); +#endif +#if __HAVE_FLOAT128 + check_type_minimal<_Float128, _Float128> (); +#endif +#if __HAVE_FLOAT128 && __HAVE_FLOAT32X + check_type_minimal<_Float128, _Float32x> (); +#endif +#if __HAVE_FLOAT128 && __HAVE_FLOAT64X + check_type_minimal<_Float128, _Float64x> (); +#endif +#if __HAVE_FLOAT128 && __HAVE_FLOAT128X + check_type_minimal<_Float128, _Float128x> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<_Float32x, float> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<_Float32x, double> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<_Float32x, long double> (); +#endif +#if __HAVE_FLOAT32X && __HAVE_FLOAT16 + check_type_minimal<_Float32x, _Float16> (); +#endif +#if __HAVE_FLOAT32X && __HAVE_FLOAT32 + check_type_minimal<_Float32x, _Float32> (); +#endif +#if __HAVE_FLOAT32X && __HAVE_FLOAT64 + check_type_minimal<_Float32x, _Float64> (); +#endif +#if __HAVE_FLOAT32X && __HAVE_FLOAT128 + check_type_minimal<_Float32x, _Float128> (); +#endif +#if __HAVE_FLOAT32X + check_type_minimal<_Float32x, _Float32x> (); +#endif +#if __HAVE_FLOAT32X && __HAVE_FLOAT64X + check_type_minimal<_Float32x, _Float64x> (); +#endif +#if __HAVE_FLOAT32X && __HAVE_FLOAT128X + check_type_minimal<_Float32x, _Float128x> (); +#endif +#if __HAVE_FLOAT64X + check_type_minimal<_Float64x, float> (); +#endif +#if __HAVE_FLOAT64X + check_type_minimal<_Float64x, double> (); +#endif +#if __HAVE_FLOAT64X && LDBL_MANT_DIG != 106 + check_type_minimal<_Float64x, long double> (); +#endif +#if __HAVE_FLOAT64X && __HAVE_FLOAT16 + check_type_minimal<_Float64x, _Float16> (); +#endif +#if __HAVE_FLOAT64X && __HAVE_FLOAT32 + check_type_minimal<_Float64x, _Float32> (); +#endif +#if __HAVE_FLOAT64X && __HAVE_FLOAT64 + check_type_minimal<_Float64x, _Float64> (); +#endif +#if __HAVE_FLOAT64X && __HAVE_FLOAT128 + check_type_minimal<_Float64x, _Float128> (); +#endif +#if __HAVE_FLOAT64X && __HAVE_FLOAT32X + check_type_minimal<_Float64x, _Float32x> (); +#endif +#if __HAVE_FLOAT64X + check_type_minimal<_Float64x, _Float64x> (); +#endif +#if __HAVE_FLOAT64X && __HAVE_FLOAT128X + check_type_minimal<_Float64x, _Float128x> (); +#endif +#if __HAVE_FLOAT128X + check_type_minimal<_Float128x, float> (); +#endif +#if __HAVE_FLOAT128X + check_type_minimal<_Float128x, double> (); +#endif +#if __HAVE_FLOAT128X && LDBL_MANT_DIG != 106 + check_type_minimal<_Float128x, long double> (); +#endif +#if __HAVE_FLOAT128X && __HAVE_FLOAT16 + check_type_minimal<_Float128x, _Float16> (); +#endif +#if __HAVE_FLOAT128X && __HAVE_FLOAT32 + check_type_minimal<_Float128x, _Float32> (); +#endif +#if __HAVE_FLOAT128X && __HAVE_FLOAT64 + check_type_minimal<_Float128x, _Float64> (); +#endif +#if __HAVE_FLOAT128X && __HAVE_FLOAT128 + check_type_minimal<_Float128x, _Float128> (); +#endif +#if __HAVE_FLOAT128X && __HAVE_FLOAT32X + check_type_minimal<_Float128x, _Float32x> (); +#endif +#if __HAVE_FLOAT128X && __HAVE_FLOAT64X + check_type_minimal<_Float128x, _Float64x> (); +#endif +#if __HAVE_FLOAT128X + check_type_minimal<_Float128x, _Float128x> (); +#endif + return 0; } |