mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 09:40:13 +00:00
8d3f9e85cf
This patch adds the narrowing subtract functions from TS 18661-1 to glibc's libm: fsub, fsubl, dsubl, f32subf64, f32subf32x, f32xsubf64 for all configurations; f32subf64x, f32subf128, f64subf64x, f64subf128, f32xsubf64x, f32xsubf128, f64xsubf128 for configurations with _Float64x and _Float128; __nldbl_dsubl for ldbl-opt. The changes are essentially the same as for the narrowing add functions, so the description of those generally applies to this patch as well. Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft float) and powerpc, and with build-many-glibcs.py. * math/Makefile (libm-narrow-fns): Add sub. (libm-test-funcs-narrow): Likewise. * math/Versions (GLIBC_2.28): Add narrowing subtract functions. * math/bits/mathcalls-narrow.h (sub): Use __MATHCALL_NARROW. * math/gen-auto-libm-tests.c (test_functions): Add sub. * math/math-narrow.h (CHECK_NARROW_SUB): New macro. (NARROW_SUB_ROUND_TO_ODD): Likewise. (NARROW_SUB_TRIVIAL): Likewise. * sysdeps/ieee754/float128/float128_private.h (__fsubl): New macro. (__dsubl): Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fsub and dsub. (CFLAGS-nldbl-dsub.c): New variable. (CFLAGS-nldbl-fsub.c): Likewise. * sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add __nldbl_dsubl. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_dsubl): New prototype. * manual/arith.texi (Misc FP Arithmetic): Document fsub, fsubl, dsubl, fMsubfN, fMsubfNx, fMxsubfN and fMxsubfNx. * math/auto-libm-test-in: Add tests of sub. * math/auto-libm-test-out-narrow-sub: New generated file. * math/libm-test-narrow-sub.inc: New file. * sysdeps/i386/fpu/s_f32xsubf64.c: Likewise. * sysdeps/ieee754/dbl-64/s_f32xsubf64.c: Likewise. * sysdeps/ieee754/dbl-64/s_fsub.c: Likewise. * sysdeps/ieee754/float128/s_f32subf128.c: Likewise. * sysdeps/ieee754/float128/s_f64subf128.c: Likewise. * sysdeps/ieee754/float128/s_f64xsubf128.c: Likewise. * sysdeps/ieee754/ldbl-128/s_dsubl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_f64xsubf128.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fsubl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_dsubl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fsubl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_dsubl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fsubl.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-dsub.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-fsub.c: Likewise. * sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise. * sysdeps/ieee754/soft-fp/s_fsub.c: Likewise. * sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise. * sysdeps/powerpc/fpu/libm-test-ulps: Update. * sysdeps/mach/hurd/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
||
|---|---|---|
| .. | ||
| e_acosf128.c | ||
| e_acoshf128.c | ||
| e_asinf128.c | ||
| e_atan2f128.c | ||
| e_atanhf128.c | ||
| e_coshf128.c | ||
| e_exp10f128.c | ||
| e_expf128.c | ||
| e_fmodf128.c | ||
| e_gammaf128_r.c | ||
| e_hypotf128.c | ||
| e_ilogbf128.c | ||
| e_j0f128.c | ||
| e_j1f128.c | ||
| e_jnf128.c | ||
| e_lgammaf128_r.c | ||
| e_log2f128.c | ||
| e_log10f128.c | ||
| e_logf128.c | ||
| e_powf128.c | ||
| e_rem_pio2f128.c | ||
| e_remainderf128.c | ||
| e_scalbf128.c | ||
| e_sinhf128.c | ||
| float128_private.h | ||
| float1282mpn.c | ||
| gamma_productf128.c | ||
| ieee754_float128.h | ||
| k_cosf128.c | ||
| k_sincosf128.c | ||
| k_sinf128.c | ||
| k_tanf128.c | ||
| lgamma_negf128.c | ||
| lgamma_productf128.c | ||
| Makeconfig | ||
| Makefile | ||
| mpn2float128.c | ||
| s_asinhf128.c | ||
| s_atanf128.c | ||
| s_cbrtf128.c | ||
| s_ceilf128.c | ||
| s_copysignf128.c | ||
| s_cosf128.c | ||
| s_erff128.c | ||
| s_expm1f128.c | ||
| s_f32addf128.c | ||
| s_f32subf128.c | ||
| s_f64addf128.c | ||
| s_f64subf128.c | ||
| s_f64xaddf128.c | ||
| s_f64xsubf128.c | ||
| s_fabsf128.c | ||
| s_finitef128.c | ||
| s_floorf128.c | ||
| s_fmaf128.c | ||
| s_fpclassifyf128.c | ||
| s_frexpf128.c | ||
| s_fromfpf128.c | ||
| s_fromfpxf128.c | ||
| s_getpayloadf128.c | ||
| s_isinff128.c | ||
| s_isnanf128.c | ||
| s_issignalingf128.c | ||
| s_llrintf128.c | ||
| s_llroundf128.c | ||
| s_log1pf128.c | ||
| s_logbf128.c | ||
| s_lrintf128.c | ||
| s_lroundf128.c | ||
| s_modff128.c | ||
| s_nearbyintf128.c | ||
| s_nextafterf128.c | ||
| s_nexttowardf128.c | ||
| s_nextupf128.c | ||
| s_remquof128.c | ||
| s_rintf128.c | ||
| s_roundevenf128.c | ||
| s_roundf128.c | ||
| s_scalblnf128.c | ||
| s_scalbnf128.c | ||
| s_setpayloadf128.c | ||
| s_setpayloadsigf128.c | ||
| s_signbitf128.c | ||
| s_significandf128.c | ||
| s_sincosf128.c | ||
| s_sinf128.c | ||
| s_tanf128.c | ||
| s_tanhf128.c | ||
| s_totalorderf128.c | ||
| s_totalordermagf128.c | ||
| s_truncf128.c | ||
| s_ufromfpf128.c | ||
| s_ufromfpxf128.c | ||
| strfromf128.c | ||
| strtod_nan_float128.h | ||
| strtof128_l.c | ||
| strtof128_nan.c | ||
| strtof128.c | ||
| t_sincosf128.c | ||
| Versions | ||
| wcstof128_l.c | ||
| wcstof128_nan.c | ||
| wcstof128.c | ||
| x2y2m1f128.c | ||