1 2 /******************************************************************************* 3 MIT License 4 ----------- 5 6 Copyright (c) 2002-2019 Advanced Micro Devices, Inc. 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy 9 of this Software and associated documentaon files (the "Software"), to deal 10 in the Software without restriction, including without limitation the rights 11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 copies of the Software, and to permit persons to whom the Software is 13 furnished to do so, subject to the following conditions: 14 15 The above copyright notice and this permission notice shall be included in 16 all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 THE SOFTWARE. 25 *******************************************************************************/ 26 27 #include <fpieee.h> 28 #include <excpt.h> 29 #include <float.h> 30 #include <math.h> 31 #include <errno.h> 32 33 #include "libm_new.h" 34 35 // these codes and the ones in the related .asm files have to match 36 #define POW_X_ONE_Y_SNAN 1 37 #define POW_X_ZERO_Z_INF 2 38 #define POW_X_NAN 3 39 #define POW_Y_NAN 4 40 #define POW_X_NAN_Y_NAN 5 41 #define POW_X_NEG_Y_NOTINT 6 42 #define POW_Z_ZERO 7 43 #define POW_Z_DENORMAL 8 44 #define POW_Z_INF 9 45 46 float _powf_special(float x, float y, float z, U32 code) 47 { 48 switch(code) 49 { 50 case POW_X_ONE_Y_SNAN: 51 { 52 UT64 zm; zm.u64 = 0; zm.f32[0] = z; 53 _handle_errorf("powf", _FpCodePow, zm.u64, 0, AMD_F_INVALID, 0, x, y, 2); 54 } 55 break; 56 57 case POW_X_ZERO_Z_INF: 58 { 59 UT64 zm; zm.u64 = 0; zm.f32[0] = z; 60 _handle_errorf("powf", _FpCodePow, zm.u64, _SING, AMD_F_DIVBYZERO, ERANGE, x, y, 2); 61 } 62 break; 63 64 case POW_X_NAN: 65 case POW_Y_NAN: 66 case POW_X_NAN_Y_NAN: 67 case POW_X_NEG_Y_NOTINT: 68 { 69 UT64 zm; zm.u64 = 0; zm.f32[0] = z; 70 _handle_errorf("powf", _FpCodePow, zm.u64, _DOMAIN, AMD_F_INVALID, EDOM, x, y, 2); 71 } 72 break; 73 74 case POW_Z_ZERO: 75 { 76 UT64 zm; zm.u64 = 0; zm.f32[0] = z; 77 _handle_errorf("powf", _FpCodePow, zm.u64, _UNDERFLOW, AMD_F_INEXACT|AMD_F_UNDERFLOW, ERANGE, x, y, 2); 78 } 79 break; 80 81 case POW_Z_INF: 82 { 83 UT64 zm; zm.u64 = 0; zm.f32[0] = z; 84 _handle_errorf("powf", _FpCodePow, zm.u64, _OVERFLOW, AMD_F_INEXACT|AMD_F_OVERFLOW, ERANGE, x, y, 2); 85 } 86 break; 87 } 88 89 return z; 90 } 91 92 double _pow_special(double x, double y, double z, U32 code) 93 { 94 switch(code) 95 { 96 case POW_X_ZERO_Z_INF: 97 { 98 UT64 zm; zm.f64 = z; 99 _handle_error("pow", _FpCodePow, zm.u64, _SING, AMD_F_DIVBYZERO, ERANGE, x, y, 2); 100 } 101 break; 102 103 case POW_X_NAN: 104 case POW_Y_NAN: 105 case POW_X_NAN_Y_NAN: 106 case POW_X_NEG_Y_NOTINT: 107 { 108 UT64 zm; zm.f64 = z; 109 _handle_error("pow", _FpCodePow, zm.u64, _DOMAIN, AMD_F_INVALID, EDOM, x, y, 2); 110 } 111 break; 112 113 case POW_Z_ZERO: 114 case POW_Z_DENORMAL: 115 { 116 UT64 zm; zm.f64 = z; 117 _handle_error("pow", _FpCodePow, zm.u64, _UNDERFLOW, AMD_F_INEXACT|AMD_F_UNDERFLOW, ERANGE, x, y, 2); 118 } 119 break; 120 121 case POW_Z_INF: 122 { 123 UT64 zm; zm.f64 = z; 124 _handle_error("pow", _FpCodePow, zm.u64, _OVERFLOW, AMD_F_INEXACT|AMD_F_OVERFLOW, ERANGE, x, y, 2); 125 } 126 break; 127 } 128 129 return z; 130 } 131