diff options
Diffstat (limited to 'contrib/arm-optimized-routines/math/logf.c')
| -rw-r--r-- | contrib/arm-optimized-routines/math/logf.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/contrib/arm-optimized-routines/math/logf.c b/contrib/arm-optimized-routines/math/logf.c index cfbaee12df10..f2c26deaff19 100644 --- a/contrib/arm-optimized-routines/math/logf.c +++ b/contrib/arm-optimized-routines/math/logf.c @@ -1,13 +1,15 @@ /* * Single-precision log function. * - * Copyright (c) 2017-2019, Arm Limited. - * SPDX-License-Identifier: MIT + * Copyright (c) 2017-2024, Arm Limited. + * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception */ #include <math.h> #include <stdint.h> #include "math_config.h" +#include "test_defs.h" +#include "test_sig.h" /* LOGF_TABLE_BITS = 4 @@ -57,7 +59,7 @@ logf (float x) tmp = ix - OFF; i = (tmp >> (23 - LOGF_TABLE_BITS)) % N; k = (int32_t) tmp >> 23; /* arithmetic shift */ - iz = ix - (tmp & 0x1ff << 23); + iz = ix - (tmp & 0xff800000); invc = T[i].invc; logc = T[i].logc; z = (double_t) asfloat (iz); @@ -77,3 +79,10 @@ logf (float x) strong_alias (logf, __logf_finite) hidden_alias (logf, __ieee754_logf) #endif + +TEST_SIG (S, F, 1, log, 0.01, 11.1) +TEST_ULP (logf, 0.32) +TEST_ULP_NONNEAREST (logf, 0.5) +TEST_INTERVAL (logf, 0, 0xffff0000, 10000) +TEST_INTERVAL (logf, 0x1p-4, 0x1p4, 500000) +TEST_INTERVAL (logf, 0, inf, 50000) |