diff options
Diffstat (limited to 'math/test/ulp.c')
| -rw-r--r-- | math/test/ulp.c | 81 |
1 files changed, 27 insertions, 54 deletions
diff --git a/math/test/ulp.c b/math/test/ulp.c index bb8c3ad69900..5ff29972e50e 100644 --- a/math/test/ulp.c +++ b/math/test/ulp.c @@ -1,10 +1,11 @@ /* * ULP error checking tool for math functions. * - * Copyright (c) 2019-2022, Arm Limited. + * Copyright (c) 2019-2023, Arm Limited. * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception */ +#define _GNU_SOURCE #include <ctype.h> #include <fenv.h> #include <float.h> @@ -23,11 +24,6 @@ # include <mpfr.h> #endif -#ifndef WANT_VMATH -/* Enable the build of vector math code. */ -# define WANT_VMATH 1 -#endif - static inline uint64_t asuint64 (double f) { @@ -212,6 +208,7 @@ struct conf unsigned long long n; double softlim; double errlim; + int ignore_zero_sign; }; /* A bit of a hack: call vector functions twice with the same @@ -220,7 +217,7 @@ struct conf static int secondcall; /* Wrappers for vector functions. */ -#if __aarch64__ && WANT_VMATH +#ifdef __vpcs typedef __f32x4_t v_float; typedef __f64x2_t v_double; /* First element of fv and dv may be changed by -c argument. */ @@ -264,40 +261,8 @@ static inline double svretd(sv_double vec) { #endif #endif -#if WANT_SVE_MATH -long double -dummyl (long double x) -{ - return x; -} - -double -dummy (double x) -{ - return x; -} - -static sv_double -__sv_dummy (sv_double x) -{ - return x; -} - -static sv_float -__sv_dummyf (sv_float x) -{ - return x; -} -#endif - #include "test/ulp_wrappers.h" -/* Wrappers for SVE functions. */ -#if WANT_SVE_MATH -static double sv_dummy (double x) { return svretd (__sv_dummy (svargd (x))); } -static float sv_dummyf (float x) { return svretf (__sv_dummyf (svargf (x))); } -#endif - struct fun { const char *name; @@ -358,10 +323,6 @@ static const struct fun fun[] = { #define ZVNF2(x) VNF2 (x) ZVF2 (x) #define ZVND1(x) VND1 (x) ZVD1 (x) #define ZVND2(x) VND2 (x) ZVD2 (x) -#define SF1(x) F (__s_##x##f, __s_##x##f, x, mpfr_##x, 1, 1, f1, 0) -#define SF2(x) F (__s_##x##f, __s_##x##f, x, mpfr_##x, 2, 1, f2, 0) -#define SD1(x) F (__s_##x, __s_##x, x##l, mpfr_##x, 1, 0, d1, 0) -#define SD2(x) F (__s_##x, __s_##x, x##l, mpfr_##x, 2, 0, d2, 0) /* SVE routines. */ #define SVF1(x) F (__sv_##x##f, sv_##x##f, x, mpfr_##x, 1, 1, f1, 0) #define SVF2(x) F (__sv_##x##f, sv_##x##f, x, mpfr_##x, 2, 1, f2, 0) @@ -374,11 +335,6 @@ static const struct fun fun[] = { #include "test/ulp_funcs.h" -#if WANT_SVE_MATH - SVD1 (dummy) - SVF1 (dummy) -#endif - #undef F #undef F1 #undef F2 @@ -628,17 +584,18 @@ call_mpfr_d2 (mpfr_t y, const struct fun *f, struct args_d2 a, mpfr_rnd_t r) static void usage (void) { - puts ("./ulp [-q] [-m] [-f] [-r nudz] [-l soft-ulplimit] [-e ulplimit] func " + puts ("./ulp [-q] [-m] [-f] [-r {n|u|d|z}] [-l soft-ulplimit] [-e ulplimit] func " "lo [hi [x lo2 hi2] [count]]"); puts ("Compares func against a higher precision implementation in [lo; hi]."); puts ("-q: quiet."); puts ("-m: use mpfr even if faster method is available."); - puts ("-f: disable fenv testing (rounding modes and exceptions)."); -#if __aarch64__ && WANT_VMATH + puts ("-f: disable fenv exceptions testing."); +#ifdef ___vpcs puts ("-c: neutral 'control value' to test behaviour when one lane can affect another. \n" " This should be different from tested input in other lanes, and non-special \n" " (i.e. should not trigger fenv exceptions). Default is 1."); #endif + puts ("-z: ignore sign of 0."); puts ("Supported func:"); for (const struct fun *f = fun; f->name; f++) printf ("\t%s\n", f->name); @@ -762,6 +719,7 @@ main (int argc, char *argv[]) conf.fenv = 1; conf.softlim = 0; conf.errlim = INFINITY; + conf.ignore_zero_sign = 0; for (;;) { argc--; @@ -801,12 +759,15 @@ main (int argc, char *argv[]) { argc--; argv++; - if (argc < 1) + if (argc < 1 || argv[0][1] != '\0') usage (); conf.rc = argv[0][0]; } break; -#if __aarch64__ && WANT_VMATH + case 'z': + conf.ignore_zero_sign = 1; + break; +#ifdef __vpcs case 'c': argc--; argv++; @@ -839,7 +800,19 @@ main (int argc, char *argv[]) if (strcmp (argv[0], f->name) == 0) break; if (!f->name) - usage (); + { +#ifndef __vpcs + /* Ignore vector math functions if vector math is not supported. */ + if (strncmp (argv[0], "_ZGVnN", 6) == 0) + exit (0); +#endif +#if !WANT_SVE_MATH + if (strncmp (argv[0], "_ZGVsMxv", 8) == 0) + exit (0); +#endif + printf ("math function %s not supported\n", argv[0]); + exit (1); + } if (!f->singleprec && LDBL_MANT_DIG == DBL_MANT_DIG) conf.mpfr = 1; /* Use mpfr if long double has no extra precision. */ if (!USE_MPFR && conf.mpfr) |