diff options
| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2019-08-09 16:24:59 +0100 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2019-10-14 11:58:53 +0100 |
| commit | ba75d0a0d8235119eef1305f0d9a2142fa4b11e0 (patch) | |
| tree | 2e5fe02ff810134efff2ad534b0a8c2e61e075c0 /math/test/mathbench.c | |
| parent | c5cba8528da13fe0d647dbd0f80d0cf21434b224 (diff) | |
| download | arm-optimized-routines-ba75d0a0d8235119eef1305f0d9a2142fa4b11e0.tar.gz | |
Add vector powf
Essentially the scalar powf algorithm is used for each element in the
vector just inlined for better scheduling and simpler special case
handling. The log polynomial is smaller as less accuracy is enough.
Worst-case error is 2.6 ulp.
Diffstat (limited to 'math/test/mathbench.c')
| -rw-r--r-- | math/test/mathbench.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/math/test/mathbench.c b/math/test/mathbench.c index 7544a7e..84e69f5 100644 --- a/math/test/mathbench.c +++ b/math/test/mathbench.c @@ -97,6 +97,7 @@ __v_dummyf (v_float x) return x; } +#if __aarch64__ #ifdef __vpcs __vpcs static v_double __vn_dummy (v_double x) @@ -109,6 +110,25 @@ __vn_dummyf (v_float x) { return x; } + +__vpcs static v_float +xy__vn_powf (v_float x) +{ + return __vn_powf (x, x); +} + +__vpcs static v_float +xy_Z_powf (v_float x) +{ + return _ZGVnN4vv_powf (x, x); +} +#endif + +static v_float +xy__v_powf (v_float x) +{ + return __v_powf (x, x); +} #endif static double @@ -123,6 +143,12 @@ xypowf (float x) return powf (x, x); } +static float +xy__s_powf (float x) +{ + return __s_powf (x, x); +} + static double xpow (double x) { @@ -202,6 +228,7 @@ F (logf, 0.01, 11.1) F (__s_logf, 0.01, 11.1) F (log2f, 0.01, 11.1) {"powf", 'f', 0, 0.01, 11.1, {.f = xypowf}}, +{"__s_powf", 'f', 0, 0.01, 11.1, {.f = xy__s_powf}}, F (xpowf, 0.01, 11.1) F (ypowf, -9.9, 9.9) {"sincosf", 'f', 0, 0.1, 0.7, {.f = sincosf_wrap}}, @@ -231,6 +258,7 @@ VF (__v_dummyf, 1.0, 2.0) VF (__v_expf, -9.9, 9.9) VF (__v_expf_1u, -9.9, 9.9) VF (__v_logf, 0.01, 11.1) +{"__v_powf", 'f', 'v', 0.01, 11.1, {.vf = xy__v_powf}}, VF (__v_sinf, -3.1, 3.1) VF (__v_cosf, -3.1, 3.1) #ifdef __vpcs @@ -243,6 +271,8 @@ VNF (_ZGVnN4v_expf, -9.9, 9.9) VNF (__vn_expf_1u, -9.9, 9.9) VNF (__vn_logf, 0.01, 11.1) VNF (_ZGVnN4v_logf, 0.01, 11.1) +{"__vn_powf", 'f', 'n', 0.01, 11.1, {.vnf = xy__vn_powf}}, +{"_ZGVnN4vv_powf", 'f', 'n', 0.01, 11.1, {.vnf = xy_Z_powf}}, VNF (__vn_sinf, -3.1, 3.1) VNF (_ZGVnN4v_sinf, -3.1, 3.1) VNF (__vn_cosf, -3.1, 3.1) |