diff options
| author | Jeff Johnston <jjohnstn@redhat.com> | 2008-09-04 21:46:14 +0400 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2008-09-04 21:46:14 +0400 |
| commit | 06e514022dd5d284b85c26fe1b4ef8bd453bc204 (patch) | |
| tree | 74a59eac0ebcbed39931201ebac83c6c518c0fae /newlib/libm/machine/spu/headers/acoshf4.h | |
| parent | db04da927987ae655176a26f3e1472a54eb60a92 (diff) | |
2008-09-04 Ken Werner <ken.werner@de.ibm.com>
* libm/machine/spu/headers/acoshf4.h: Rebase against current simdmath.
* libm/machine/spu/headers/asinhd2.h: Likewise.
* libm/machine/spu/headers/atanhd2.h: Likewise.
* libm/machine/spu/headers/atanhf4.h: Likewise.
* libm/machine/spu/headers/erff4.h: Likewise.
* libm/machine/spu/headers/expd2.h: Likewise.
* libm/machine/spu/headers/ldexpd2.h: Likewise.
* libm/machine/spu/headers/lgammaf4.h: Likewise.
* libm/machine/spu/headers/logbf4.h: Likewise.
* libm/machine/spu/headers/nextafterd2.h: Likewise.
* libm/machine/spu/headers/nextafterf4.h: Likewise.
* libm/machine/spu/headers/recipd2.h: Likewise.
* libm/machine/spu/headers/simdmath.h: Likewise.
* libm/machine/spu/headers/acoshd2.: Likewise.
Diffstat (limited to 'newlib/libm/machine/spu/headers/acoshf4.h')
| -rw-r--r-- | newlib/libm/machine/spu/headers/acoshf4.h | 73 |
1 files changed, 39 insertions, 34 deletions
diff --git a/newlib/libm/machine/spu/headers/acoshf4.h b/newlib/libm/machine/spu/headers/acoshf4.h index 3efc35ffc..5cf94d8e5 100644 --- a/newlib/libm/machine/spu/headers/acoshf4.h +++ b/newlib/libm/machine/spu/headers/acoshf4.h @@ -89,26 +89,26 @@ * Taylor Series Coefficients * for x around 1. */ -#define ACOSH_TAY01 1.0000000000000000000000000000000000000000000000000000000000000000000000E0 /* 1 / 1 */ -#define ACOSH_TAY02 -8.3333333333333333333333333333333333333333333333333333333333333333333333E-2 /* 1 / 12 */ -#define ACOSH_TAY03 1.8750000000000000000000000000000000000000000000000000000000000000000000E-2 /* 3 / 160 */ -#define ACOSH_TAY04 -5.5803571428571428571428571428571428571428571428571428571428571428571429E-3 /* 5 / 896 */ -#define ACOSH_TAY05 1.8988715277777777777777777777777777777777777777777777777777777777777778E-3 /* 35 / 18432 */ -#define ACOSH_TAY06 -6.9912997159090909090909090909090909090909090909090909090909090909090909E-4 /* 63 / 90112 */ -#define ACOSH_TAY07 2.7113694411057692307692307692307692307692307692307692307692307692307692E-4 /* 231 / 851968 */ -#define ACOSH_TAY08 -1.0910034179687500000000000000000000000000000000000000000000000000000000E-4 /* 143 / 1310720 */ -#define ACOSH_TAY09 4.5124222250545726102941176470588235294117647058823529411764705882352941E-5 /* 6435 / 142606336 */ -#define ACOSH_TAY10 -1.9065643611707185444078947368421052631578947368421052631578947368421053E-5 /* 12155 / 637534208 */ -#define ACOSH_TAY11 8.1936873140789213634672619047619047619047619047619047619047619047619048E-6 /* 46189 / 5637144576 */ -#define ACOSH_TAY12 -3.5705692742181860882302989130434782608695652173913043478260869565217391E-6 /* 88179 / 24696061952 */ -#define ACOSH_TAY13 1.5740259550511837005615234375000000000000000000000000000000000000000000E-6 /* 676039 / 429496729600 */ -#define ACOSH_TAY14 -7.0068819224144573564882631655092592592592592592592592592592592592592593E-7 /* 1300075 / 1855425871872 */ -#define ACOSH_TAY15 3.1453306166503321507881427633351293103448275862068965517241379310344828E-7 /* 5014575 / 15942918602752 */ +#define SDM_ACOSHF4_TAY01 1.00000000000000000000000000000000000E0f /* 1 / 1 */ +#define SDM_ACOSHF4_TAY02 -8.33333333333333333333333333333333333E-2f /* 1 / 12 */ +#define SDM_ACOSHF4_TAY03 1.87500000000000000000000000000000000E-2f /* 3 / 160 */ +#define SDM_ACOSHF4_TAY04 -5.58035714285714285714285714285714286E-3f /* 5 / 896 */ +#define SDM_ACOSHF4_TAY05 1.89887152777777777777777777777777778E-3f /* 35 / 18432 */ +#define SDM_ACOSHF4_TAY06 -6.99129971590909090909090909090909091E-4f /* 63 / 90112 */ +#define SDM_ACOSHF4_TAY07 2.71136944110576923076923076923076923E-4f /* 231 / 851968 */ +#define SDM_ACOSHF4_TAY08 -1.09100341796875000000000000000000000E-4f /* 143 / 1310720 */ +#define SDM_ACOSHF4_TAY09 4.51242222505457261029411764705882353E-5f /* 6435 / 142606336 */ +#define SDM_ACOSHF4_TAY10 -1.90656436117071854440789473684210526E-5f /* 12155 / 637534208 */ +#define SDM_ACOSHF4_TAY11 8.19368731407892136346726190476190476E-6f /* 46189 / 5637144576 */ +#define SDM_ACOSHF4_TAY12 -3.57056927421818608823029891304347826E-6f /* 88179 / 24696061952 */ +#define SDM_ACOSHF4_TAY13 1.57402595505118370056152343750000000E-6f /* 676039 / 429496729600 */ +#define SDM_ACOSHF4_TAY14 -7.00688192241445735648826316550925926E-7f /* 1300075 / 1855425871872 */ +#define SDM_ACOSHF4_TAY15 3.14533061665033215078814276333512931E-7f /* 5014575 / 15942918602752 */ #if 0 -#define ACOSH_TAY16 -1.4221629293564136230176494967552923387096774193548387096774193548387097E-7 /* 9694845 / 68169720922112 */ -#define ACOSH_TAY17 6.4711106776113328206437555226412686434659090909090909090909090909090909E-8 /* 100180065 / 1548112371908608 */ -#define ACOSH_TAY18 -2.9609409781171182528071637664522443498883928571428571428571428571428571E-8 /* 116680311 / 3940649673949184 */ -#define ACOSH_TAY19 1.3615438056281793767600509061201198680980785472972972972972972972972973E-8 /* 2268783825 / 166633186212708352 */ +#define SDM_ACOSHF4_TAY16 -1.42216292935641362301764949675529234E-7f /* 9694845 / 68169720922112 */ +#define SDM_ACOSHF4_TAY17 6.47111067761133282064375552264126864E-8f /* 100180065 / 1548112371908608 */ +#define SDM_ACOSHF4_TAY18 -2.96094097811711825280716376645224435E-8f /* 116680311 / 3940649673949184 */ +#define SDM_ACOSHF4_TAY19 1.36154380562817937676005090612011987E-8f /* 2268783825 / 166633186212708352 */ #endif @@ -117,6 +117,7 @@ static __inline vector float _acoshf4(vector float x) { vec_float4 minus_onef = spu_splats(-1.0f); vec_float4 twof = spu_splats(2.0f); + vec_float4 largef = spu_splats(2.5e19f); vec_float4 xminus1; /* Where we switch from taylor to formula */ vec_float4 switch_approx = spu_splats(2.0f); @@ -129,30 +130,33 @@ static __inline vector float _acoshf4(vector float x) * acosh = ln(x + sqrt(x^2 - 1)) */ fresult = _sqrtf4(spu_madd(x, x, minus_onef)); - fresult = spu_add(x, fresult); + fresult = spu_add(x, spu_sel(fresult, x, spu_cmpgt(x, largef))); fresult = _logf4(fresult); + fresult = (vec_float4)spu_add((vec_uint4)fresult, spu_splats(2u)); /* * Taylor Series */ xminus1 = spu_add(x, minus_onef); - mresult = spu_madd(xminus1, spu_splats((float)ACOSH_TAY15), spu_splats((float)ACOSH_TAY14)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY13)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY12)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY11)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY10)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY09)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY08)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY07)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY06)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY05)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY04)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY03)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY02)); - mresult = spu_madd(xminus1, mresult, spu_splats((float)ACOSH_TAY01)); + mresult = spu_splats(SDM_ACOSHF4_TAY15); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY14)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY13)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY12)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY11)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY10)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY09)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY08)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY07)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY06)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY05)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY04)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY03)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY02)); + mresult = spu_madd(xminus1, mresult, spu_splats(SDM_ACOSHF4_TAY01)); mresult = spu_mul(mresult, _sqrtf4(spu_mul(xminus1, twof))); + mresult = (vec_float4)spu_add((vec_uint4)mresult, spu_splats(1u)); /* * Select series or formula @@ -160,6 +164,7 @@ static __inline vector float _acoshf4(vector float x) use_form = spu_cmpgt(x, switch_approx); result = spu_sel(mresult, fresult, use_form); + return result; } |