From 8da2915d5dcfa51cb5f9e55f7716b49858c1d59d Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 19 Feb 2001 09:09:18 +0000 Subject: Update. 2001-02-19 Ulrich Drepper * libio/iogetline.c: Move return until after last statement. * localedata/show-ucs-data.c: Don't show < > for better readability. * sysdeps/ia64/fpu/Dist: New file. * sysdeps/ia64/fpu/Makefile: New file. * sysdeps/ia64/fpu/Versions: New file. * sysdeps/ia64/fpu/e_acos.S: New file. * sysdeps/ia64/fpu/e_acosf.S: New file. * sysdeps/ia64/fpu/e_acosl.S: New file. * sysdeps/ia64/fpu/e_asin.S: New file. * sysdeps/ia64/fpu/e_asinf.S: New file. * sysdeps/ia64/fpu/e_asinl.S: New file. * sysdeps/ia64/fpu/e_atan2.S: New file. * sysdeps/ia64/fpu/e_atan2f.S: New file. * sysdeps/ia64/fpu/e_atan2l.c: New file. * sysdeps/ia64/fpu/e_cosh.S: New file. * sysdeps/ia64/fpu/e_coshf.S: New file. * sysdeps/ia64/fpu/e_coshl.S: New file. * sysdeps/ia64/fpu/e_exp.S: New file. * sysdeps/ia64/fpu/e_expf.S: New file. * sysdeps/ia64/fpu/e_expl.c: New file. * sysdeps/ia64/fpu/e_fmod.S: New file. * sysdeps/ia64/fpu/e_fmodf.S: New file. * sysdeps/ia64/fpu/e_fmodl.S: New file. * sysdeps/ia64/fpu/e_hypot.S: New file. * sysdeps/ia64/fpu/e_hypotf.S: New file. * sysdeps/ia64/fpu/e_hypotl.S: New file. * sysdeps/ia64/fpu/e_log.S: New file. * sysdeps/ia64/fpu/e_log10.c: New file. * sysdeps/ia64/fpu/e_log10f.c: New file. * sysdeps/ia64/fpu/e_log10l.c: New file. * sysdeps/ia64/fpu/e_logf.S: New file. * sysdeps/ia64/fpu/e_logl.c: New file. * sysdeps/ia64/fpu/e_pow.S: New file. * sysdeps/ia64/fpu/e_powf.S: New file. * sysdeps/ia64/fpu/e_powl.S: New file. * sysdeps/ia64/fpu/e_rem_pio2.c: New file. * sysdeps/ia64/fpu/e_rem_pio2f.c: New file. * sysdeps/ia64/fpu/e_remainder.S: New file. * sysdeps/ia64/fpu/e_remainderf.S: New file. * sysdeps/ia64/fpu/e_remainderl.S: New file. * sysdeps/ia64/fpu/e_scalb.S: New file. * sysdeps/ia64/fpu/e_scalbf.S: New file. * sysdeps/ia64/fpu/e_scalbl.S: New file. * sysdeps/ia64/fpu/e_sinh.S: New file. * sysdeps/ia64/fpu/e_sinhf.S: New file. * sysdeps/ia64/fpu/e_sinhl.S: New file. * sysdeps/ia64/fpu/e_sqrt.S: New file. * sysdeps/ia64/fpu/e_sqrtf.S: New file. * sysdeps/ia64/fpu/e_sqrtl.S: New file. * sysdeps/ia64/fpu/k_rem_pio2.c: New file. * sysdeps/ia64/fpu/k_rem_pio2f.c: New file. * sysdeps/ia64/fpu/k_rem_pio2l.c: New file. * sysdeps/ia64/fpu/libm_atan2_reg.S: New file. * sysdeps/ia64/fpu/libm_error.c: New file. * sysdeps/ia64/fpu/libm_frexp4.S: New file. * sysdeps/ia64/fpu/libm_frexp4f.S: New file. * sysdeps/ia64/fpu/libm_frexp4l.S: New file. * sysdeps/ia64/fpu/libm_reduce.S: New file. * sysdeps/ia64/fpu/libm_support.h: New file. * sysdeps/ia64/fpu/libm_tan.S: New file. * sysdeps/ia64/fpu/s_atan.S: New file. * sysdeps/ia64/fpu/s_atanf.S: New file. * sysdeps/ia64/fpu/s_atanl.S: New file. * sysdeps/ia64/fpu/s_cbrt.S: New file. * sysdeps/ia64/fpu/s_cbrtf.S: New file. * sysdeps/ia64/fpu/s_cbrtl.S: New file. * sysdeps/ia64/fpu/s_ceil.S: New file. * sysdeps/ia64/fpu/s_ceilf.S: New file. * sysdeps/ia64/fpu/s_ceill.S: New file. * sysdeps/ia64/fpu/s_cos.S: New file. * sysdeps/ia64/fpu/s_cosf.S: New file. * sysdeps/ia64/fpu/s_cosl.S: New file. * sysdeps/ia64/fpu/s_expm1.S: New file. * sysdeps/ia64/fpu/s_expm1f.S: New file. * sysdeps/ia64/fpu/s_expm1l.S: New file. * sysdeps/ia64/fpu/s_floor.S: New file. * sysdeps/ia64/fpu/s_floorf.S: New file. * sysdeps/ia64/fpu/s_floorl.S: New file. * sysdeps/ia64/fpu/s_frexp.c: New file. * sysdeps/ia64/fpu/s_frexpf.c: New file. * sysdeps/ia64/fpu/s_frexpl.c: New file. * sysdeps/ia64/fpu/s_ilogb.S: New file. * sysdeps/ia64/fpu/s_ilogbf.S: New file. * sysdeps/ia64/fpu/s_ilogbl.S: New file. * sysdeps/ia64/fpu/s_ldexp.S: New file. * sysdeps/ia64/fpu/s_ldexpf.S: New file. * sysdeps/ia64/fpu/s_ldexpl.S: New file. * sysdeps/ia64/fpu/s_log1p.S: New file. * sysdeps/ia64/fpu/s_log1pf.S: New file. * sysdeps/ia64/fpu/s_log1pl.S: New file. * sysdeps/ia64/fpu/s_logb.S: New file. * sysdeps/ia64/fpu/s_logbf.S: New file. * sysdeps/ia64/fpu/s_logbl.S: New file. * sysdeps/ia64/fpu/s_matherrf.c: New file. * sysdeps/ia64/fpu/s_matherrl.c: New file. * sysdeps/ia64/fpu/s_modf.S: New file. * sysdeps/ia64/fpu/s_modff.S: New file. * sysdeps/ia64/fpu/s_modfl.S: New file. * sysdeps/ia64/fpu/s_nearbyint.S: New file. * sysdeps/ia64/fpu/s_nearbyintf.S: New file. * sysdeps/ia64/fpu/s_nearbyintl.S: New file. * sysdeps/ia64/fpu/s_rint.S: New file. * sysdeps/ia64/fpu/s_rintf.S: New file. * sysdeps/ia64/fpu/s_rintl.S: New file. * sysdeps/ia64/fpu/s_round.S: New file. * sysdeps/ia64/fpu/s_roundf.S: New file. * sysdeps/ia64/fpu/s_roundl.S: New file. * sysdeps/ia64/fpu/s_scalbn.S: New file. * sysdeps/ia64/fpu/s_scalbnf.S: New file. * sysdeps/ia64/fpu/s_scalbnl.S: New file. * sysdeps/ia64/fpu/s_significand.S: New file. * sysdeps/ia64/fpu/s_significandf.S: New file. * sysdeps/ia64/fpu/s_significandl.S: New file. * sysdeps/ia64/fpu/s_sin.c: New file. * sysdeps/ia64/fpu/s_sincos.c: New file. * sysdeps/ia64/fpu/s_sincosf.c: New file. * sysdeps/ia64/fpu/s_sincosl.c: New file. * sysdeps/ia64/fpu/s_sinf.c: New file. * sysdeps/ia64/fpu/s_sinl.c: New file. * sysdeps/ia64/fpu/s_tan.S: New file. * sysdeps/ia64/fpu/s_tanf.S: New file. * sysdeps/ia64/fpu/s_tanl.S: New file. * sysdeps/ia64/fpu/s_trunc.S: New file. * sysdeps/ia64/fpu/s_truncf.S: New file. * sysdeps/ia64/fpu/s_truncl.S: New file. * sysdeps/ia64/fpu/w_acos.c: New file. * sysdeps/ia64/fpu/w_acosf.c: New file. * sysdeps/ia64/fpu/w_acosl.c: New file. * sysdeps/ia64/fpu/w_asin.c: New file. * sysdeps/ia64/fpu/w_asinf.c: New file. * sysdeps/ia64/fpu/w_asinl.c: New file. * sysdeps/ia64/fpu/w_atan2.c: New file. * sysdeps/ia64/fpu/w_atan2f.c: New file. * sysdeps/ia64/fpu/w_atan2l.c: New file. * sysdeps/ia64/fpu/w_cosh.c: New file. * sysdeps/ia64/fpu/w_coshf.c: New file. * sysdeps/ia64/fpu/w_coshl.c: New file. * sysdeps/ia64/fpu/w_exp.c: New file. * sysdeps/ia64/fpu/w_expf.c: New file. * sysdeps/ia64/fpu/w_fmod.c: New file. * sysdeps/ia64/fpu/w_fmodf.c: New file. * sysdeps/ia64/fpu/w_fmodl.c: New file. * sysdeps/ia64/fpu/w_hypot.c: New file. * sysdeps/ia64/fpu/w_hypotf.c: New file. * sysdeps/ia64/fpu/w_hypotl.c: New file. * sysdeps/ia64/fpu/w_log.c: New file. * sysdeps/ia64/fpu/w_log10.c: New file. * sysdeps/ia64/fpu/w_log10f.c: New file. * sysdeps/ia64/fpu/w_log10l.c: New file. * sysdeps/ia64/fpu/w_logf.c: New file. * sysdeps/ia64/fpu/w_logl.c: New file. * sysdeps/ia64/fpu/w_pow.c: New file. * sysdeps/ia64/fpu/w_powf.c: New file. * sysdeps/ia64/fpu/w_powl.c: New file. * sysdeps/ia64/fpu/w_remainder.c: New file. * sysdeps/ia64/fpu/w_remainderf.c: New file. * sysdeps/ia64/fpu/w_remainderl.c: New file. * sysdeps/ia64/fpu/w_scalb.c: New file. * sysdeps/ia64/fpu/w_scalbf.c: New file. * sysdeps/ia64/fpu/w_scalbl.c: New file. * sysdeps/ia64/fpu/w_sqrt.c: New file. * sysdeps/ia64/fpu/w_sqrtf.c: New file. * sysdeps/ia64/fpu/w_sqrtl.c: New file. * sysdeps/ia64/fpu/libm-test-ulps: Adjust for long double implementation. * sysdeps/ia64/fpu/bits/mathdef.h: Correct float_t and double_t types. Change FP_ILOGBNAN for new implementation. * Verions.def: Add 2.2.3 versions. --- sysdeps/ia64/fpu/s_modfl.S | 267 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 267 insertions(+) create mode 100644 sysdeps/ia64/fpu/s_modfl.S (limited to 'sysdeps/ia64/fpu/s_modfl.S') diff --git a/sysdeps/ia64/fpu/s_modfl.S b/sysdeps/ia64/fpu/s_modfl.S new file mode 100644 index 0000000000..e15508ba61 --- /dev/null +++ b/sysdeps/ia64/fpu/s_modfl.S @@ -0,0 +1,267 @@ +.file "modfl.s" + +// Copyright (c) 2000, 2001, Intel Corporation +// All rights reserved. +// +// Contributed 2/2/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story, +// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation. +// +// WARRANTY DISCLAIMER +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS +// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY +// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING +// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Intel Corporation is the author of this code, and requests that all +// problem reports or change requests be submitted to it directly at +// http://developer.intel.com/opensource. +// +// History +//============================================================== +// 2/02/00: Initial version +// 4/04/00: Improved speed, corrected result for NaN input +// 5/30/00 Fixed bug for exponent 0x1003e +// 12/22/00 Fixed so inexact flag is never set, and invalid is not set for +// qnans nor for inputs larger than 2^63. +// +// API +//============================================================== +// long double modfl(long double x, long double *iptr) +// break a floating point x number into fraction and an exponent +// +// input floating point f8, address in r34 +// output floating point f8 (x fraction), and *iptr (x integral part) +// +// OVERVIEW +//============================================================== +// +// NO FRACTIONAL PART: HUGE +// If +// for double-extended +// If the true exponent is >= 63 +// 1003e ==> 1003e -ffff = 3f = 63(dec) +// then +// we are already an integer (p9 true) + +// NO INTEGER PART: SMALL +// Is f8 exponent less than register bias (that is, is it +// less than 1). If it is, get the right sign of +// zero and store this in iptr. + +// CALCULATION: NOT HUGE, NOT SMALL +// To get the integer part +// Take the floating-point input and truncate +// then convert this integer to fp Call it MODF_INTEGER_PART + +// Subtract MODF_INTEGER_PART from MODF_NORM_F8 to get fraction part +// Then put fraction part in f8 +// put integer part MODF_INTEGER_PART into *iptr + +// Registers used +//============================================================== + +// predicate registers used: +// p6 - p13 + +// 0xFFFF 0x1003e +// -----------------------+-----------------+------------- +// SMALL | NORMAL | HUGE +// p11 --------------->|<----- p12 ----->| <-------------- p9 +// p10 --------------------------------->| +// p13 --------------------------------------------------->| +// + +#include "libm_support.h" + +// floating-point registers used: +MODF_NORM_F8 = f9 +MODF_FRACTION_PART = f10 +MODF_INTEGER_PART = f11 +MODF_INT_INTEGER_PART = f12 + + +// general registers used +modf_signexp = r14 +modf_GR_no_frac = r15 +modf_GR_FFFF = r16 +modf_17_ones = r17 +modf_exp = r18 +// r34 = iptr + + +.align 32 +.global modfl# + +.section .text +.proc modfl# +.align 32 + + +// Main path is p9, p11, p8 FALSE and p12 TRUE + +// Assume input is normalized and get signexp +// Normalize input just in case +// Form exponent bias +modfl: +{ .mfi + getf.exp modf_signexp = f8 + fnorm MODF_NORM_F8 = f8 + addl modf_GR_FFFF = 0xffff, r0 +} +// Get integer part of input +// Form exponent mask +{ .mfi + nop.m 999 + fcvt.fx.trunc.s1 MODF_INT_INTEGER_PART = f8 + mov modf_17_ones = 0x1ffff ;; +} + +// Is x nan or inf? +// qnan snan inf norm unorm 0 -+ +// 1 1 1 0 0 0 11 = 0xe3 NAN_INF +// Form biased exponent where input only has an integer part +{ .mfi + nop.m 999 + fclass.m.unc p6,p13 = f8, 0xe3 + addl modf_GR_no_frac = 0x1003e, r0 ;; +} + +// Mask to get exponent +// Is x unnorm? +// qnan snan inf norm unorm 0 -+ +// 0 0 0 0 1 0 11 = 0x0b UNORM +// Set p13 to indicate calculation path, else p6 if nan or inf +{ .mfi + and modf_exp = modf_17_ones, modf_signexp + fclass.m.unc p8,p0 = f8, 0x0b + nop.i 999 ;; +} + +// p11 <== SMALL, no integer part, fraction is everyting +// p9 <== HUGE, no fraction part, integer is everything +// p12 <== NORMAL, fraction part and integer part +{ .mii +(p13) cmp.lt.unc p11,p10 = modf_exp, modf_GR_FFFF + nop.i 999 + nop.i 999 ;; +} + +// Is x inf? p6 if inf, p7 if nan +{ .mfb +(p10) cmp.ge.unc p9,p12 = modf_exp, modf_GR_no_frac +(p6) fclass.m.unc p6,p7 = f8, 0x23 +(p8) br.cond.spnt L(MODF_DENORM) ;; +} + +L(MODF_COMMON): +// For HUGE set fraction to signed 0 +{ .mfi + nop.m 999 +(p9) fmerge.s f8 = f8,f0 + nop.i 999 +} +// For HUGE set integer part to normalized input +{ .mfi + nop.m 999 +(p9) fnorm MODF_INTEGER_PART = MODF_NORM_F8 + nop.i 999 ;; +} + +// For SMALL set fraction to normalized input, integer part to signed 0 +{ .mfi + nop.m 999 +(p11) fmerge.s MODF_INTEGER_PART = f8,f0 + nop.i 999 +} +{ .mfi + nop.m 999 +(p11) fnorm f8 = MODF_NORM_F8 + nop.i 999 ;; +} + +// For NORMAL float the integer part +{ .mfi + nop.m 999 +(p12) fcvt.xf MODF_INTEGER_PART = MODF_INT_INTEGER_PART + nop.i 999 ;; +} + +// If x inf set integer part to INF, fraction to signed 0 +{ .mfi +(p6) stfe [r34] = MODF_NORM_F8 +(p6) fmerge.s f8 = f8,f0 + nop.i 999 ;; +} + +// If x nan set integer and fraction parts to NaN (quietized) +{ .mfi +(p7) stfe [r34] = MODF_NORM_F8 +(p7) fmerge.s f8 = MODF_NORM_F8, MODF_NORM_F8 + nop.i 999 ;; +} + +{ .mmi +(p9) stfe [r34] = MODF_INTEGER_PART + nop.m 999 + nop.i 999 ;; +} + +// For NORMAL compute fraction part +{ .mfi +(p11) stfe [r34] = MODF_INTEGER_PART +(p12) fms.s0 f8 = MODF_NORM_F8,f1, MODF_INTEGER_PART + nop.i 999 ;; +} + +// For NORMAL test if fraction part is zero; if so append correct sign +{ .mfi + nop.m 999 +(p12) fcmp.eq.unc p7,p0 = MODF_NORM_F8, MODF_INTEGER_PART + nop.i 999 ;; +} + +{ .mfi +(p12) stfe [r34] = MODF_INTEGER_PART + nop.f 999 + nop.i 999 ;; +} + +// For NORMAL if fraction part is zero append sign of input +{ .mfb + nop.m 999 +(p7) fmerge.s f8 = MODF_NORM_F8, f0 + br.ret.sptk b0 ;; +} + +L(MODF_DENORM): +// If x unorm get signexp from normalized input +// If x unorm get integer part from normalized input +{ .mfi + getf.exp modf_signexp = MODF_NORM_F8 + fcvt.fx.trunc.s1 MODF_INT_INTEGER_PART = MODF_NORM_F8 + nop.i 999 ;; +} + +// If x unorm mask to get exponent +{ .mmi + and modf_exp = modf_17_ones, modf_signexp ;; + cmp.lt.unc p11,p10 = modf_exp, modf_GR_FFFF + nop.i 999 ;; +} + +{ .mfb +(p10) cmp.ge.unc p9,p12 = modf_exp, modf_GR_no_frac + nop.f 999 + br.cond.spnt L(MODF_COMMON) ;; +} + +.endp modfl +ASM_SIZE_DIRECTIVE(modfl) -- cgit 1.4.1