mirror of
https://sourceware.org/git/glibc.git
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789 lines
17 KiB
C
789 lines
17 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include "soft-fp.h"
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#include "single.h"
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#include "double.h"
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#include <fpu_control.h>
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/*======================================================================*/
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/* declarations for the functions we are testing */
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double __adddf3(double, double);
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double __subdf3(double, double);
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double __muldf3(double, double);
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double __divdf3(double, double);
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double __negdf2(double);
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double __sqrtdf2(double);
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double __negdf3(double a, double dummy) { return __negdf2(a); }
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double __sqrtdf3(double a, double dummy) { return __sqrtdf2(a); }
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float __addsf3(float, float);
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float __subsf3(float, float);
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float __mulsf3(float, float);
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float __divsf3(float, float);
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float __negsf2(float);
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float __sqrtsf2(float);
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float __negsf3(float a, float dummy) { return __negsf2(a); }
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float __sqrtsf3(float a, float dummy) { return __sqrtsf2(a); }
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int __fixdfsi(double);
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int __fixsfsi(float);
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double __floatsidf(int);
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float __floatsisf(int);
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double __extendsfdf2(float);
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float __truncdfsf2(double);
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int __eqdf2(double, double);
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int __nedf2(double, double);
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int __gtdf2(double, double);
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int __gedf2(double, double);
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int __ltdf2(double, double);
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int __ledf2(double, double);
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int __eqsf2(float, float);
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int __nesf2(float, float);
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int __gtsf2(float, float);
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int __gesf2(float, float);
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int __ltsf2(float, float);
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int __lesf2(float, float);
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/*======================================================================*/
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/* definitions for functions we are checking against */
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double r_adddf3(double a, double b) { return a + b; }
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double r_subdf3(double a, double b) { return a - b; }
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double r_muldf3(double a, double b) { return a * b; }
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double r_divdf3(double a, double b) { return a / b; }
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double r_negdf3(double a, double b) { return -a; }
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double sqrt(double x);
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double r_sqrtdf3(double a, double b) { return sqrt(a); }
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float r_addsf3(float a, float b) { return a + b; }
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float r_subsf3(float a, float b) { return a - b; }
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float r_mulsf3(float a, float b) { return a * b; }
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float r_divsf3(float a, float b) { return a / b; }
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float r_negsf3(float a, float b) { return -a; }
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float sqrtf(float x);
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float r_sqrtsf3(float a, float b) { return sqrtf(a); }
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int r_fixdfsi(double a) { return (int)a; }
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int r_fixsfsi(float a) { return (int)a; }
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double r_floatsidf(int a) { return (double)a; }
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float r_floatsisf(int a) { return (float)a; }
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double r_extendsfdf2(float a) { return (double)a; }
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float r_truncdfsf2(double a) { return (float)a; }
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int r_eqdf2(double a, double b) { return !(a == b); }
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int r_nedf2(double a, double b) { return a != b; }
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int r_gtdf2(double a, double b) { return a > b; }
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int r_gedf2(double a, double b) { return (a >= b) - 1; }
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int r_ltdf2(double a, double b) { return -(a < b); }
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int r_ledf2(double a, double b) { return 1 - (a <= b); }
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int r_eqsf2(float a, float b) { return !(a == b); }
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int r_nesf2(float a, float b) { return a != b; }
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int r_gtsf2(float a, float b) { return a > b; }
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int r_gesf2(float a, float b) { return (a >= b) - 1; }
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int r_ltsf2(float a, float b) { return -(a < b); }
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int r_lesf2(float a, float b) { return 1 - (a <= b); }
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/*======================================================================*/
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void print_float(float x)
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{
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union _FP_UNION_S ux;
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ux.flt = x;
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printf("%-20.8e %X %02X %06lX",
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x, ux.bits.sign, ux.bits.exp, (unsigned long)ux.bits.frac);
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}
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void print_double(double x)
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{
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union _FP_UNION_D ux;
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ux.flt = x;
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#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
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printf("%-30.18e %X %04X %06lX%08lX",
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x, ux.bits.sign, ux.bits.exp,
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(unsigned long)ux.bits.frac1, (unsigned long)ux.bits.frac0);
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#else
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printf("%-30.18e %X %04X %014lX",
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x, ux.bits.sign, ux.bits.exp,
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(unsigned long)ux.bits.frac);
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#endif
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}
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float rand_float(void)
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{
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union {
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union _FP_UNION_S u;
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int i;
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} u;
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u.i = lrand48() << 1;
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if (u.u.bits.exp == _FP_EXPMAX_S)
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u.u.bits.exp--;
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else if (u.u.bits.exp == 0 && u.u.bits.frac != 0)
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u.u.bits.exp++;
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return u.u.flt;
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}
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double rand_double(void)
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{
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union {
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union _FP_UNION_D u;
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int i[2];
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} u;
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u.i[0] = lrand48() << 1;
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u.i[1] = lrand48() << 1;
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if (u.u.bits.exp == _FP_EXPMAX_D)
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u.u.bits.exp--;
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#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
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else if (u.u.bits.exp == 0 && !(u.u.bits.frac0 == 0 && u.u.bits.frac1 == 0))
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u.u.bits.exp++;
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#else
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else if (u.u.bits.exp == 0 && u.u.bits.frac != 0)
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u.u.bits.exp++;
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#endif
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return u.u.flt;
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}
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#define NSPECIALS 10
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float gen_special_float(int i)
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{
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FP_DECL_EX;
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FP_DECL_S(X);
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float x;
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switch (i & ~1)
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{
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case 0:
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X_c = FP_CLS_NAN; X_f = 0x1234;
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break;
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case 2:
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X_c = FP_CLS_NAN; X_f = 0x1;
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break;
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case 4:
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X_c = FP_CLS_INF;
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break;
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case 6:
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X_c = FP_CLS_ZERO;
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break;
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case 8:
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X_c = FP_CLS_NORMAL; X_e = 0;
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X_f = 0x4321;
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break;
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}
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X_s = (i & 1);
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FP_PACK_S(x, X);
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return x;
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}
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double gen_special_double(int i)
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{
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FP_DECL_EX;
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FP_DECL_D(X);
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double x;
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switch (i & ~1)
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{
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case 0:
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X_c = FP_CLS_NAN;
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#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
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__FP_FRAC_SET_2(X, _FP_QNANNEGATEDP ? 0 : _FP_QNANBIT_D, 0x1234);
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#else
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_FP_FRAC_SET_1(X, (_FP_QNANNEGATEDP ? 0 : _FP_QNANBIT_D) | 0x1234);
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#endif
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break;
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case 2:
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X_c = FP_CLS_NAN;
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#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
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__FP_FRAC_SET_2(X, _FP_QNANNEGATEDP ? 0 : _FP_QNANBIT_D, 0x1);
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#else
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_FP_FRAC_SET_1(X, (_FP_QNANNEGATEDP ? 0 : _FP_QNANBIT_D) | 0x1);
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#endif
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break;
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case 4:
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X_c = FP_CLS_INF;
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break;
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case 6:
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X_c = FP_CLS_ZERO;
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break;
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case 8:
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X_c = FP_CLS_NORMAL; X_e = 0;
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#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
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__FP_FRAC_SET_2(X, 0, 0x87654321);
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#else
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_FP_FRAC_SET_1(X, 0x87654321);
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#endif
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break;
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}
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X_s = (i & 1);
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FP_PACK_D(x, X);
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return x;
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}
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float build_float(const char *s, const char *e, const char *f)
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{
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union _FP_UNION_S u;
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u.bits.sign = strtoul(s, 0, 16);
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u.bits.exp = strtoul(e, 0, 16);
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u.bits.frac = strtoul(f, 0, 16);
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return u.flt;
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}
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double build_double(const char *s, const char *e, const char *f)
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{
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union _FP_UNION_D u;
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u.bits.sign = strtoul(s, 0, 16);
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u.bits.exp = strtoul(e, 0, 16);
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#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D
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{
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size_t len = strlen(f)+1;
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char *dup = memcpy(alloca(len), f, len);
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char *low = dup + len - _FP_W_TYPE_SIZE/4 - 1;
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u.bits.frac0 = strtoul(low, 0, 16);
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*low = 0;
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u.bits.frac1 = strtoul(dup, 0, 16);
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}
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#else
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u.bits.frac = strtoul(f, 0, 16);
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#endif
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return u.flt;
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}
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/*======================================================================*/
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fpu_control_t fcw0, fcw1;
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void test_float_arith(float (*tf)(float, float),
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float (*rf)(float, float),
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float x, float y)
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{
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float tr, rr;
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rr = (*rf)(x, y);
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tr = (*tf)(x, y);
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if (memcmp(&tr, &rr, sizeof(float)) != 0)
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{
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fputs("error:\n\tx = ", stdout); print_float(x);
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fputs("\n\ty = ", stdout); print_float(y);
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fputs("\n\ttrue = ", stdout); print_float(rr);
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fputs("\n\tfalse = ", stdout); print_float(tr);
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putchar('\n');
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}
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}
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void test_double_arith(double (*tf)(double, double),
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double (*rf)(double, double),
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double x, double y)
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{
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double tr, rr;
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#ifdef __i386__
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/* Don't worry. Even this does not make it error free
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on ia32. If the result is denormal, it will not
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honour the double precision and generate bad results
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anyway. On the other side, who wants to use ia32
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for IEEE math? I don't. */
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_FPU_GETCW(fcw0);
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fcw1 = ((fcw0 & ~_FPU_EXTENDED) | _FPU_DOUBLE);
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_FPU_SETCW(fcw1);
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#endif
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rr = (*rf)(x, y);
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#ifdef __i386__
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_FPU_SETCW(fcw0);
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#endif
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tr = (*tf)(x, y);
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if (memcmp(&tr, &rr, sizeof(double)) != 0)
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{
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fputs("error:\n\tx = ", stdout); print_double(x);
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fputs("\n\ty = ", stdout); print_double(y);
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fputs("\n\ttrue = ", stdout); print_double(rr);
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fputs("\n\tfalse = ", stdout); print_double(tr);
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putchar('\n');
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}
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}
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void test_float_double_conv(float x)
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{
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double tr, rr;
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rr = r_extendsfdf2(x);
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tr = __extendsfdf2(x);
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if (memcmp(&tr, &rr, sizeof(double)) != 0)
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{
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fputs("error:\n\tx = ", stdout); print_float(x);
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fputs("\n\ttrue = ", stdout); print_double(rr);
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fputs("\n\tfalse = ", stdout); print_double(tr);
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putchar('\n');
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}
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}
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void test_double_float_conv(double x)
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{
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float tr, rr;
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rr = r_truncdfsf2(x);
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tr = __truncdfsf2(x);
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if (memcmp(&tr, &rr, sizeof(float)) != 0)
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{
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fputs("error:\n\tx = ", stdout); print_double(x);
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fputs("\n\ttrue = ", stdout); print_float(rr);
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fputs("\n\tfalse = ", stdout); print_float(tr);
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putchar('\n');
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}
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}
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void test_int_float_conv(int x)
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{
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float tr, rr;
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rr = r_floatsisf(x);
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tr = __floatsisf(x);
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if (memcmp(&tr, &rr, sizeof(float)) != 0)
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{
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printf("error\n\tx = %d", x);
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fputs("\n\ttrue = ", stdout); print_float(rr);
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fputs("\n\tfalse = ", stdout); print_float(tr);
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putchar('\n');
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}
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}
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void test_int_double_conv(int x)
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{
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double tr, rr;
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rr = r_floatsidf(x);
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tr = __floatsidf(x);
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if (memcmp(&tr, &rr, sizeof(double)) != 0)
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{
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printf("error\n\tx = %d", x);
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fputs("\n\ttrue = ", stdout); print_double(rr);
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fputs("\n\tfalse = ", stdout); print_double(tr);
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putchar('\n');
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}
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}
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void test_float_int_conv(float x)
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{
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int tr, rr;
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rr = r_fixsfsi(x);
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tr = __fixsfsi(x);
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if (rr != tr)
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{
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fputs("error:\n\tx = ", stdout); print_float(x);
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printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr);
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}
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}
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void test_double_int_conv(double x)
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{
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int tr, rr;
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rr = r_fixsfsi(x);
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tr = __fixsfsi(x);
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if (rr != tr)
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{
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fputs("error:\n\tx = ", stdout); print_double(x);
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printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr);
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}
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}
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int eq0(int x) { return x == 0; }
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int ne0(int x) { return x != 0; }
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int le0(int x) { return x <= 0; }
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int lt0(int x) { return x < 0; }
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int ge0(int x) { return x >= 0; }
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int gt0(int x) { return x > 0; }
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void test_float_cmp(int (*tf)(float, float),
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int (*rf)(float, float),
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int (*cmp0)(int),
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float x, float y)
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{
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int tr, rr;
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rr = (*rf)(x, y);
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tr = (*tf)(x, y);
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if (cmp0(rr) != cmp0(tr))
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{
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fputs("error:\n\tx = ", stdout); print_float(x);
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fputs("\n\ty = ", stdout); print_float(y);
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printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr);
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}
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}
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void test_double_cmp(int (*tf)(double, double),
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int (*rf)(double, double),
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int (*cmp0)(int),
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double x, double y)
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{
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int tr, rr;
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rr = (*rf)(x, y);
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tr = (*tf)(x, y);
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if (cmp0(rr) != cmp0(tr))
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{
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fputs("error:\n\tx = ", stdout); print_double(x);
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fputs("\n\ty = ", stdout); print_double(y);
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printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr);
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}
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}
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/*======================================================================*/
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int main(int ac, char **av)
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{
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#ifdef __alpha__
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__ieee_set_fp_control(0);
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#endif
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av++, ac--;
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switch (*(*av)++)
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{
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{
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float (*r)(float, float);
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float (*t)(float, float);
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do {
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case 'a': r = r_addsf3; t = __addsf3; break;
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case 's': r = r_subsf3; t = __subsf3; break;
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case 'm': r = r_mulsf3; t = __mulsf3; break;
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case 'd': r = r_divsf3; t = __divsf3; break;
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case 'r': r = r_sqrtsf3; t = __sqrtsf3; break;
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case 'j': r = r_negsf3; t = __negsf3; break;
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} while (0);
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switch (*(*av)++)
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{
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case 'n':
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{
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int count = (ac > 1 ? atoi(av[1]) : 100);
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while (count--)
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test_float_arith(t, r, rand_float(), rand_float());
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}
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break;
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case 's':
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{
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int i, j;
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for (i = 0; i < NSPECIALS; i++)
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for (j = 0; j < NSPECIALS; j++)
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test_float_arith(t, r, gen_special_float(i),
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gen_special_float(j));
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}
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break;
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case 0:
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if (ac < 7) abort();
|
|
test_float_arith(t, r, build_float(av[1], av[2], av[3]),
|
|
build_float(av[4], av[5], av[6]));
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
{
|
|
double (*r)(double, double);
|
|
double (*t)(double, double);
|
|
|
|
do {
|
|
case 'A': r = r_adddf3; t = __adddf3; break;
|
|
case 'S': r = r_subdf3; t = __subdf3; break;
|
|
case 'M': r = r_muldf3; t = __muldf3; break;
|
|
case 'D': r = r_divdf3; t = __divdf3; break;
|
|
case 'R': r = r_sqrtdf3; t = __sqrtdf3; break;
|
|
case 'J': r = r_negdf3; t = __negdf3; break;
|
|
} while (0);
|
|
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_double_arith(t, r, rand_double(), rand_double());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i, j;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
for (j = 0; j < NSPECIALS; j++)
|
|
test_double_arith(t, r, gen_special_double(i),
|
|
gen_special_double(j));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 7) abort();
|
|
test_double_arith(t, r, build_double(av[1], av[2], av[3]),
|
|
build_double(av[4], av[5], av[6]));
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'c':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_float_double_conv(rand_float());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
test_float_double_conv(gen_special_float(i));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 4) abort();
|
|
test_float_double_conv(build_float(av[1], av[2], av[3]));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'C':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_double_float_conv(rand_double());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
test_double_float_conv(gen_special_double(i));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 4) abort();
|
|
test_double_float_conv(build_double(av[1], av[2], av[3]));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'i':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_int_float_conv(lrand48() << 1);
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 2) abort();
|
|
test_int_float_conv(strtol(av[1], 0, 0));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'I':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_int_double_conv(lrand48() << 1);
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 2) abort();
|
|
test_int_double_conv(strtol(av[1], 0, 0));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'f':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_float_int_conv(rand_float());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
test_float_int_conv(gen_special_float(i));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 4) abort();
|
|
test_float_int_conv(build_float(av[1], av[2], av[3]));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 'F':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_double_int_conv(rand_double());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
test_double_int_conv(gen_special_double(i));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 4) abort();
|
|
test_double_int_conv(build_double(av[1], av[2], av[3]));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
{
|
|
int (*r)(float, float);
|
|
int (*t)(float, float);
|
|
int (*c)(int);
|
|
|
|
do {
|
|
case 'e': r = r_eqsf2; t = __eqsf2; c = eq0; break;
|
|
case 'n': r = r_nesf2; t = __nesf2; c = ne0; break;
|
|
case 'l':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'e': r = r_lesf2; t = __lesf2; c = le0; break;
|
|
case 't': r = r_ltsf2; t = __ltsf2; c = lt0; break;
|
|
}
|
|
break;
|
|
case 'g':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'e': r = r_gesf2; t = __gesf2; c = ge0; break;
|
|
case 't': r = r_gtsf2; t = __gtsf2; c = gt0; break;
|
|
}
|
|
break;
|
|
} while (0);
|
|
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_float_cmp(t, r, c, rand_float(), rand_float());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i, j;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
for (j = 0; j < NSPECIALS; j++)
|
|
test_float_cmp(t, r, c, gen_special_float(i),
|
|
gen_special_float(j));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 7) abort();
|
|
test_float_cmp(t, r, c, build_float(av[1], av[2], av[3]),
|
|
build_float(av[4], av[5], av[6]));
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
{
|
|
int (*r)(double, double);
|
|
int (*t)(double, double);
|
|
int (*c)(int);
|
|
|
|
do {
|
|
case 'E': r = r_eqdf2; t = __eqdf2; c = eq0; break;
|
|
case 'N': r = r_nedf2; t = __nedf2; c = ne0; break;
|
|
case 'L':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'E': r = r_ledf2; t = __ledf2; c = le0; break;
|
|
case 'T': r = r_ltdf2; t = __ltdf2; c = lt0; break;
|
|
}
|
|
break;
|
|
case 'G':
|
|
switch (*(*av)++)
|
|
{
|
|
case 'E': r = r_gedf2; t = __gedf2; c = ge0; break;
|
|
case 'T': r = r_gtdf2; t = __gtdf2; c = gt0; break;
|
|
}
|
|
break;
|
|
} while (0);
|
|
|
|
switch (*(*av)++)
|
|
{
|
|
case 'n':
|
|
{
|
|
int count = (ac > 1 ? atoi(av[1]) : 100);
|
|
while (count--)
|
|
test_double_cmp(t, r, c, rand_double(), rand_double());
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
{
|
|
int i, j;
|
|
for (i = 0; i < NSPECIALS; i++)
|
|
for (j = 0; j < NSPECIALS; j++)
|
|
test_double_cmp(t, r, c, gen_special_double(i),
|
|
gen_special_double(j));
|
|
}
|
|
break;
|
|
|
|
case 0:
|
|
if (ac < 7) abort();
|
|
test_double_cmp(t, r, c, build_double(av[1], av[2], av[3]),
|
|
build_double(av[4], av[5], av[6]));
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
abort();
|
|
}
|
|
|
|
return 0;
|
|
}
|