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([2804:1b3:a7c3:b18e:67c4:6248:3d8a:f386]) by smtp.gmail.com with ESMTPSA id p11-20020a17090a348b00b002a091be027esm2277357pjb.31.2024.03.27.12.40.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Mar 2024 12:40:37 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Cc: Joseph Myers , Florian Weimer , "H . J . Lu" Subject: [PATCH v2 04/10] i386: Use generic fmodf Date: Wed, 27 Mar 2024 16:40:18 -0300 Message-Id: <20240327194024.1409677-5-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240327194024.1409677-1-adhemerval.zanella@linaro.org> References: <20240327194024.1409677-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces+e=80x24.org@sourceware.org The resulting performance is similiar (Ryzen 5900, gcc 13.2.1): * sysdeps/i386/fpu/e_fmodf.S "fmodf": { "subnormals": { "duration": 3.68732e+09, "iterations": 2.2912e+08, "max": 71.447, "min": 15.836, "mean": 16.0934 }, "normal": { "duration": 3.75848e+09, "iterations": 5.5296e+07, "max": 273.208, "min": 15.725, "mean": 67.9702 }, "close-exponents": { "duration": 3.69035e+09, "iterations": 2.07872e+08, "max": 64.454, "min": 15.762, "mean": 17.753 } } * master "fmodf": { "subnormals": { "duration": 3.6863e+09, "iterations": 2.23616e+08, "max": 65.453, "min": 16.243, "mean": 16.485 }, "normal": { "duration": 3.71129e+09, "iterations": 5.3248e+07, "max": 281.57, "min": 16.169, "mean": 69.6983 }, "close-exponents": { "duration": 3.70274e+09, "iterations": 2.03776e+08, "max": 81.474, "min": 16.206, "mean": 18.1706 } } --- sysdeps/i386/fpu/Versions | 2 +- sysdeps/i386/fpu/e_fmodf.S | 18 ------------------ sysdeps/i386/fpu/e_fmodf.c | 2 ++ sysdeps/i386/fpu/w_fmodf_compat.c | 15 --------------- sysdeps/ieee754/flt-32/e_fmodf.c | 5 ++++- sysdeps/mach/hurd/i386/libm.abilist | 1 + sysdeps/unix/sysv/linux/i386/libm.abilist | 1 + 7 files changed, 9 insertions(+), 35 deletions(-) delete mode 100644 sysdeps/i386/fpu/e_fmodf.S create mode 100644 sysdeps/i386/fpu/e_fmodf.c delete mode 100644 sysdeps/i386/fpu/w_fmodf_compat.c diff --git a/sysdeps/i386/fpu/Versions b/sysdeps/i386/fpu/Versions index d37bc1eae6..9509f9b7c7 100644 --- a/sysdeps/i386/fpu/Versions +++ b/sysdeps/i386/fpu/Versions @@ -5,6 +5,6 @@ libm { } GLIBC_2.40 { # No SVID compatible error handling. - fmod; + fmod; fmodf; } } diff --git a/sysdeps/i386/fpu/e_fmodf.S b/sysdeps/i386/fpu/e_fmodf.S deleted file mode 100644 index f73ce9da1e..0000000000 --- a/sysdeps/i386/fpu/e_fmodf.S +++ /dev/null @@ -1,18 +0,0 @@ -/* - * Public domain. - */ - -#include -#include - -ENTRY(__ieee754_fmodf) - flds 8(%esp) - flds 4(%esp) -1: fprem - fstsw %ax - sahf - jp 1b - fstp %st(1) - ret -END(__ieee754_fmodf) -libm_alias_finite (__ieee754_fmodf, __fmodf) diff --git a/sysdeps/i386/fpu/e_fmodf.c b/sysdeps/i386/fpu/e_fmodf.c new file mode 100644 index 0000000000..15a0f960bf --- /dev/null +++ b/sysdeps/i386/fpu/e_fmodf.c @@ -0,0 +1,2 @@ +#define FMODF_VERSION GLIBC_2_40 +#include diff --git a/sysdeps/i386/fpu/w_fmodf_compat.c b/sysdeps/i386/fpu/w_fmodf_compat.c deleted file mode 100644 index 5a61693e51..0000000000 --- a/sysdeps/i386/fpu/w_fmodf_compat.c +++ /dev/null @@ -1,15 +0,0 @@ -/* i386 provides an optimized __ieee752_fmodf. */ -#include -#ifdef SHARED -# undef SHLIB_COMPAT -# define SHLIB_COMPAT(a, b, c) 1 -# undef LIBM_SVID_COMPAT -# define LIBM_SVID_COMPAT 1 -# undef compat_symbol -# define compat_symbol(a, b, c, d) -# include -libm_alias_float (__fmod_compat, fmod) -#else -#include -#include -#endif diff --git a/sysdeps/ieee754/flt-32/e_fmodf.c b/sysdeps/ieee754/flt-32/e_fmodf.c index ef95c05800..78071df756 100644 --- a/sysdeps/ieee754/flt-32/e_fmodf.c +++ b/sysdeps/ieee754/flt-32/e_fmodf.c @@ -173,7 +173,10 @@ __fmodf (float x, float y) } strong_alias (__fmodf, __ieee754_fmodf) #if LIBM_SVID_COMPAT -versioned_symbol (libm, __fmodf, fmodf, GLIBC_2_38); +# ifndef FMODF_VERSION +# define FMODF_VERSION GLIBC_2_38 +# endif +versioned_symbol (libm, __fmodf, fmodf, FMODF_VERSION); libm_alias_float_other (__fmod, fmod) #else libm_alias_float (__fmod, fmod) diff --git a/sysdeps/mach/hurd/i386/libm.abilist b/sysdeps/mach/hurd/i386/libm.abilist index 30665f8b1a..88e7538e51 100644 --- a/sysdeps/mach/hurd/i386/libm.abilist +++ b/sysdeps/mach/hurd/i386/libm.abilist @@ -1182,3 +1182,4 @@ GLIBC_2.35 fsqrtl F GLIBC_2.35 hypot F GLIBC_2.35 hypotf F GLIBC_2.40 fmod F +GLIBC_2.40 fmodf F diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist index 44932f111d..c99c60161d 100644 --- a/sysdeps/unix/sysv/linux/i386/libm.abilist +++ b/sysdeps/unix/sysv/linux/i386/libm.abilist @@ -1189,3 +1189,4 @@ GLIBC_2.35 fsqrtl F GLIBC_2.35 hypot F GLIBC_2.35 hypotf F GLIBC_2.40 fmod F +GLIBC_2.40 fmodf F -- 2.34.1