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author | Ulrich Drepper <drepper@redhat.com> | 2001-02-19 09:09:18 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2001-02-19 09:09:18 +0000 |
commit | 8da2915d5dcfa51cb5f9e55f7716b49858c1d59d (patch) | |
tree | aa219472cc41fcb82789b12723628cb6a33cc774 /sysdeps/ia64/fpu/s_significand.S | |
parent | e208f556cad11f729533385e46e4191fcc49aa0a (diff) | |
download | glibc-8da2915d5dcfa51cb5f9e55f7716b49858c1d59d.tar.gz glibc-8da2915d5dcfa51cb5f9e55f7716b49858c1d59d.tar.xz glibc-8da2915d5dcfa51cb5f9e55f7716b49858c1d59d.zip |
Update.
2001-02-19 Ulrich Drepper <drepper@redhat.com> * 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.
Diffstat (limited to 'sysdeps/ia64/fpu/s_significand.S')
-rw-r--r-- | sysdeps/ia64/fpu/s_significand.S | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/s_significand.S b/sysdeps/ia64/fpu/s_significand.S new file mode 100644 index 0000000000..0cbfd4256c --- /dev/null +++ b/sysdeps/ia64/fpu/s_significand.S @@ -0,0 +1,147 @@ +.file "significand.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 Unwind support added +// 5/31/00: Fixed bug when x a double-extended denormal +// +// API +//============================================================== +// double significand(double x) +// +// Overview of operation +//============================================================== +// If x = sig * 2**n with 1 <= sig < 2 +// significand returns sig +// +// predicate registers used: +// p6, p7 +// +// floating-point registers used: +// f8, f9, f10 + +#include "libm_support.h" + +.align 32 +.global significand# + +.section .text +.proc significand# +.align 32 + +significand: + +// qnan snan inf norm unorm 0 -+ +// 1 1 1 0 0 1 11 + +// f10 gets f8(sign) with f1(exp,significand) +{ .mfi + nop.m 999 +(p0) fmerge.s f10 = f8,f1 + nop.i 999 +} +{ .mfi + nop.m 999 +(p0) fnorm f9 = f8 + nop.i 999 ;; +} + +// Test for denormal input +{ .mfi + nop.m 999 +(p0) fclass.m.unc p7,p0 = f8, 0x0b + nop.i 999 ;; +} + +// p6 = TRUE ==> x is not (nan,inf,0) +// return sign(f8) exp(f1) significand(f8) +// else x is (nan,inf,0) +// return sign(f8) exp(f8) significand(f8), normalized. +{ .mfi + nop.m 999 +(p0) fclass.m.unc p0,p6 = f8, 0xe7 + nop.i 999 ;; +} + +{ .mmb + nop.m 999 + nop.m 999 +(p7) br.cond.spnt L(SIGNIFICAND_DENORM) ;; // Branch if x denormal +} + +{ .mfi + nop.m 999 +(p6) fmerge.se f8 = f10,f8 + nop.i 999 ;; +} + +{ .mfb + nop.m 999 +(p0) fnorm.d f8 = f8 +(p0) br.ret.sptk b0 ;; +} + +L(SIGNIFICAND_DENORM): +// Here if x denorm +{ .mfi + nop.m 999 +(p0) fmerge.se f8 = f10,f9 + nop.i 999 ;; +} + +// Check if fnorm(x) still denormal, means x double-extended denormal +{ .mfi + nop.m 999 +(p0) fclass.m.unc p7,p0 = f9, 0x0b + nop.i 999 ;; +} + +// This will be the final result unless x double-extended denormal +{ .mfi + nop.m 999 +(p0) fnorm.d f8 = f8 + nop.i 999 ;; +} + +// If x double-extended denorm, then significand ok, but must merge in +// correct signexp +{ .mfi + nop.m 999 +(p7) fmerge.se f8 = f10,f8 + nop.i 999 ;; +} + +// Final normalization if x double-extended denorm +{ .mfb + nop.m 999 +(p7) fnorm.d f8 = f8 +(p0) br.ret.sptk b0 ;; +} + +.endp significand +ASM_SIZE_DIRECTIVE(significand) |