diff options
Diffstat (limited to 'sysdeps/s390')
| -rw-r--r-- | sysdeps/s390/fpu/math-barriers.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/sysdeps/s390/fpu/math-barriers.h b/sysdeps/s390/fpu/math-barriers.h index 68a3e55098..13fd30017f 100644 --- a/sysdeps/s390/fpu/math-barriers.h +++ b/sysdeps/s390/fpu/math-barriers.h @@ -21,13 +21,26 @@ #ifdef HAVE_S390_VX_GCC_SUPPORT # define ASM_CONSTRAINT_VR "v" +# ifdef __LONG_DOUBLE_VX__ +/* Starting with gcc 11, long double values can also be processed in vector + registers if build with -march >= z14. Then GCC defines the + __LONG_DOUBLE_VX__ macro. */ +# define ASM_LONG_DOUBLE_IN_VR 1 +# else +# define ASM_LONG_DOUBLE_IN_VR 0 +# endif #else # define ASM_CONSTRAINT_VR +# define ASM_LONG_DOUBLE_IN_VR 0 #endif #define math_opt_barrier(x) \ ({ __typeof (x) __x = (x); \ - if (__builtin_types_compatible_p (__typeof (x), _Float128)) \ + if (! ASM_LONG_DOUBLE_IN_VR \ + && (__builtin_types_compatible_p (__typeof (x), _Float128) \ + || __builtin_types_compatible_p (__typeof (x), long double) \ + ) \ + ) \ __asm__ ("# math_opt_barrier_f128 %0" : "+fm" (__x)); \ else \ __asm__ ("# math_opt_barrier %0" \ @@ -35,7 +48,11 @@ __x; }) #define math_force_eval(x) \ ({ __typeof (x) __x = (x); \ - if (__builtin_types_compatible_p (__typeof (x), _Float128)) \ + if (! ASM_LONG_DOUBLE_IN_VR \ + && (__builtin_types_compatible_p (__typeof (x), _Float128) \ + || __builtin_types_compatible_p (__typeof (x), long double) \ + ) \ + ) \ __asm__ __volatile__ ("# math_force_eval_f128 %0" \ : : "fm" (__x)); \ else \ |