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authorUlrich Drepper <drepper@redhat.com>2001-02-19 09:09:18 +0000
committerUlrich Drepper <drepper@redhat.com>2001-02-19 09:09:18 +0000
commit8da2915d5dcfa51cb5f9e55f7716b49858c1d59d (patch)
treeaa219472cc41fcb82789b12723628cb6a33cc774 /sysdeps/ia64/fpu/s_modfl.S
parente208f556cad11f729533385e46e4191fcc49aa0a (diff)
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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_modfl.S')
-rw-r--r--sysdeps/ia64/fpu/s_modfl.S267
1 files changed, 267 insertions, 0 deletions
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)