From d75a0a62b12c35ee85f786d5f8d155ab39909411 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 7 Jan 2012 11:19:05 -0500 Subject: Remove IA-64 support --- sysdeps/ia64/fpu/s_cbrtf.S | 765 --------------------------------------------- 1 file changed, 765 deletions(-) delete mode 100644 sysdeps/ia64/fpu/s_cbrtf.S (limited to 'sysdeps/ia64/fpu/s_cbrtf.S') diff --git a/sysdeps/ia64/fpu/s_cbrtf.S b/sysdeps/ia64/fpu/s_cbrtf.S deleted file mode 100644 index 612fb85ea3..0000000000 --- a/sysdeps/ia64/fpu/s_cbrtf.S +++ /dev/null @@ -1,765 +0,0 @@ -.file "cbrtf.s" - - -// Copyright (c) 2000 - 2003, Intel Corporation -// All rights reserved. -// -// Contributed 2000 by the Intel Numerics Group, Intel Corporation -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// -// * Redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution. -// -// * The name of Intel Corporation may not be used to endorse or promote -// products derived from this software without specific prior written -// permission. - -// 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://www.intel.com/software/products/opensource/libraries/num.htm. -// -// History -//============================================================== -// 02/02/00 Initial version -// 05/18/00 New version (modified algorithm) -// 05/20/02 Cleaned up namespace and sf0 syntax -// 01/28/03 Rescheduled some instructions for better performance -// on Itanium 2, and reformatted -// -// API -//============================================================== -// float cbrtf(float) -// -// Overview of operation -//============================================================== -// Background -// -// Implementation -// -// Let y= frcpa(a), where a is the argument -// -// cbrt(a)= cbrt(a*y)/cbrt(y) = cbrt(1 - (1-a*y)) * (1/cbrt(y)) -// -// For all values of y, the 3 possible significands of 1/cbrt(y) -// are stored in a table (T0) to 64 bits of accuracy. (There are -// 3 possible significands because the exponent of y modulo 3 -// can be 0, 1, or 2.) -// -// -// * cbrt(1 - (1-a*y)) is approximated by a degree-2 polynomial -// -// 1 - (1/3)*r - (1/9)*r^2 -// -// in r = 1-a*y. -// -// The table values are stored for three exponent values and are -// then multiplied by 2^(e/3) where e is the exponent of the input number. -// This computation is carried out in parallel with the polynomial -// evaluation: -// -// T= 2^(e/3) * T0 - - - - - -//=============== -// input= x -// C= frcpa(x) -// r= 1 - C * x -// -// Special values -//============================================================== - - - -// Registers used -//============================================================== -// p6, p7, p8, p12 - - FR_R = f6 - FR_COEFF1 = f7 - FR_COEFF2 = f9 - FR_T0 = f10 - FR_T1 = f11 - FR_T2 = f12 - FR_2M63 = f13 - FR_ARG = f14 - FR_Y = f15 - - GR_GP = r2 - GR_ADDR = r2 - GR_TMP5 = r3 - GR_CONST = r8 - GR_TMP63 = r8 - GR_SIGN = r9 - GR_CT2 = r10 - GR_CT3 = r11 - GR_TMP4 = r14 - GR_EBIAS3 = r15 - GR_REM = r16 - GR_SEXP = r17 - GR_2P63 = r18 - GR_SIGNIF = r19 - GR_I1 = r20 - GR_EBIAS = r21 - GR_EXP = r22 - GR_IT1 = r23 - GR_E5 = r24 - GR_IT1_3 = r25 - GR_TP1 = r26 - GR_TMP = r27 - GR_TMP2 = r28 - GR_TMP3 = r29 - GR_EXP3 = r30 - GR_ARGEXP = r31 - - - - -// Data tables -//============================================================== - -RODATA - -.align 16 - -LOCAL_OBJECT_START(poly_coeffs) - - data8 0xaaaab19b7e1f5ef9, 0x00003ffd // ~ 1/3 - data8 0xe38e5192a5a8e56c, 0x00003ffb // ~ 1/9 -LOCAL_OBJECT_END(poly_coeffs) - -// For every entry B in the frcpa table, this table contains -// the significands of cbrt(1/B), cbrt(2/B), cbrt(4/B). -// The index to this table is the same as the frcpa index. - -LOCAL_OBJECT_START(T_table) - - data8 0x80155c748c374836, 0xa160019ed37fb4ae - data8 0xcb51ddcb9e93095e, 0x8040404b0879f7f9 - data8 0xa1960b5966da4608, 0xcb95f333968ad59b - data8 0x806b5dce4b405c10, 0xa1cc5dbe6dc2aab4 - data8 0xcbda64292d3ffd97, 0x8096b586974669b1 - 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data8 0xc6d18260bb84081b, 0xfa7ed7e51e6fdfb4 - data8 0x9de60cd06dc6e2d4, 0xc6f0977c9416828b - data8 0xfaa601394d49a1a0, 0x9dfec7d4cc43b76f - data8 0xc70fc0117c641630, 0xfacd431644ce0e40 - data8 0x9e17925ec9fccc4a, 0xc72efc34d7e615be - data8 0xfaf49d96f7a75909, 0x9e3cdf6db57dc075 - data8 0xc75dfb441594141e, 0xfb2fd3c65e562fd5 - data8 0x9e55d110b63637a8, 0xc77d68aa019bda4c - data8 0xfb576c5762024805, 0x9e6ed27594550d2e - data8 0xc79ce9ea478dbc4f, 0xfb7f1debc22c4040 - data8 0x9e87e3adc385d393, 0xc7bc7f1ae453219d - data8 0xfba6e89f32d0190a, 0x9ead9b54b37a1055 - data8 0xc7ec0476e15e141a, 0xfbe2c803a0894893 - data8 0x9ec6d46a3d7de215, 0xc80bcbe16f1d540f - data8 0xfc0ad1ff0ed9ecf0, 0x9ee01d9108be3154 - data8 0xc82ba78a5d349735, 0xfc32f57bdfbcbe7f - data8 0x9ef976db07288d04, 0xc84b978847a06b87 - data8 0xfc5b32968f99b21c, 0x9f12e05a4759ec25 - data8 0xc86b9bf1ee817bc6, 0xfc83896bc861ab08 - data8 0x9f2c5a20f4da6668, 0xc88bb4de3667cdf4 - data8 0xfcabfa1861ed4815, 0x9f52af78ed1733ca - data8 0xc8bc00e7fe9e23a3, 0xfce8d3cea7d3163e - data8 0x9f6c52426a39d003, 0xc8dc4d7ff2d25232 - data8 0xfd118595143ee273, 0x9f860593d42fd7f3 - data8 0xc8fcaeebcb40eb47, 0xfd3a519943d4865a - data8 0x9f9fc97fdb96bd51, 0xc91d25431426a663 - data8 0xfd6337f8e1ae5a4b, 0x9fb99e194f4a7037 - data8 0xc93db09d7fdb2949, 0xfd8c38d1c8e927eb - data8 0x9fd383731ca51db9, 0xc95e5112e721582a - data8 0xfdb5544205095a53, 0x9fed79a04fbf9423 - data8 0xc97f06bb49787677, 0xfdde8a67d2613531 - data8 0xa00780b413b24ee8, 0xc99fd1aecd6e1b06 - data8 0xfe07db619e781611, 0xa02eab2c4474b0cd - data8 0xc9d12a3e27bb1625, 0xfe460768d80bf758 - data8 0xa048dcd51ccfd142, 0xc9f22ad82ba3d5f0 - data8 0xfe6f9bfb06cd32f6, 0xa0631fa894b11b8d - data8 0xca134113105e67b2, 0xfe994bcd3d14fcc2 - data8 0xa07d73ba65e680af, 0xca346d07b045a876 - data8 0xfec316fecaf3f2ab, 0xa097d91e6aaf71b0 - data8 0xca55aecf0e94bb88, 0xfeecfdaf33fadb80 - data8 0xa0b24fe89e02602f, 0xca77068257be9bab - data8 0xff16fffe2fa8fad6, 0xa0ccd82d1bd2f68b - data8 0xca98743ae1c693a8, 0xff411e0ba9db886d - data8 0xa0e77200215909e6, 0xcab9f8122c99a101 - data8 0xff6b57f7c33e4e9a, 0xa1021d760d584855 - data8 0xcadb9221e268c3b5, 0xff95ade2d1bd7358 - data8 0xa11cdaa36068a57d, 0xcafd4283d8043dfd - data8 0xffc01fed60f86fb5, 0xa137a99cbd3f880b - data8 0xcb1f09520d37c6fb, 0xffeaae3832b63956 -LOCAL_OBJECT_END(T_table) - - - - - - - -.section .text -GLOBAL_LIBM_ENTRY(cbrtf) - - -{.mfi - getf.sig GR_SIGNIF = f8 - // will continue only for normal/denormal numbers - fclass.nm.unc p12, p7 = f8, 0x1b - // GR_GP = pointer to C_1, C_2 followed by T_table - nop.i 0 -} -{.mfi - addl GR_GP = @ltoff(poly_coeffs), gp - // normalize a - fma.s1 FR_ARG = f8, f1, f0 - // GR_CT3 = bias-((2^8-1)/3) -63 = 0xffff-0x55-0x3f = 0xff6b - mov GR_CT3 = 0xff6b ;; -} - -{.mmi - // get exponent - getf.exp GR_ARGEXP = f8 - // load start address for C_1, C_2 followed by T_table - ld8 GR_ADDR = [ GR_GP ] - nop.i 0 ;; -} - -{.mlx - // check if input significand is 0 - (p7) cmp.eq p12, p7 = GR_SIGNIF, r0 - // GR_2P63 = 2^63 - movl GR_2P63 = 0x8000000000000000 ;; -} - -{.mfi - nop.m 0 - // y = frcpa(a) - // p7 = 1 for normal and denormal (but non-zero) arguments - (p7) frcpa.s0 FR_Y, p0 = f1, f8 - // p9 = 1 if denormal input - cmp.gtu p9, p0 = GR_2P63, GR_SIGNIF -} -{.mfb - // load C_1 - ldfe FR_COEFF1 = [ GR_ADDR ], 16 - // if argument is 0, +/-Infinity, or NaN, return - (p12) fma.s.s0 f8 = f8, f1, f0 - (p12) br.ret.spnt b0 ;; -} - -{.mmi - // get normalized significand (for denormal inputs only) - (p9) getf.sig GR_SIGNIF = FR_ARG - // load C_2 - ldfe FR_COEFF2 = [ GR_ADDR ], 16 - // GR_CT2 = bias-(2^8-1) - mov GR_CT2 = 0xff00 -} - -{.mii - // get exponent (for denormal inputs only) - (p9) getf.exp GR_ARGEXP = FR_ARG - nop.i 0 - mov GR_CONST = 0x20000 ;; -} - - -{.mii - // get GR_SIGN = sign - and GR_SIGN = GR_ARGEXP, GR_CONST - // eliminate leading 1 from GR_I1 = 1st table index - shl GR_I1 = GR_SIGNIF, 1 - // eliminate sign from exponent - andcm GR_EBIAS = GR_ARGEXP, GR_CONST ;; -} - - -{.mfi - // subtract bias from GR_EXP = exponent - sub GR_EXP = GR_EBIAS, GR_CT2 - // r = 1-a*y - fnma.s1 FR_R = FR_Y, FR_ARG, f1 - // GR_IT1 = 1st table index (y_index8 bits) - shr.u GR_IT1 = GR_I1, 56 ;; -} - - -{.mii - // 1: exponent* = 5; // (2^{16}-1)/3 = 0x5555 - shladd GR_E5 = GR_EXP, 2, GR_EXP - // GR_IT1_3 = 3*y_index - shladd GR_IT1_3 = GR_IT1, 1, GR_IT1 - nop.i 0 ;; -} - - -{.mmi - // GR_TMP5 = (5*expon)*16+5*expon = (0x55)*expon - shladd GR_TMP5 = GR_E5, 4, GR_E5 - // adjust T_table pointer by 1st index - shladd GR_TP1 = GR_IT1_3, 3, GR_ADDR - nop.i 0 ;; -} - - -{.mmi - // FR_T0 = T [ 0 ] [ y ] - ldf8 FR_T0 = [ GR_TP1 ], 8 - // get 2^{-63} - mov GR_TMP63 = 0xffff + 63 - // GR_TMP = (0x5500)*expon - shl GR_TMP = GR_TMP5, 8 ;; -} - - -{.mfi - // FR_T1 = T [ 1 ] [ y ] - ldf8 FR_T1 = [ GR_TP1 ], 8 - // P_1 = C_1+C_2*r - fma.s1 FR_COEFF1 = FR_COEFF2, FR_R, FR_COEFF1 - // GR_TMP2 = (0x5555)*expon - add GR_TMP2 = GR_TMP, GR_TMP5 ;; -} - - -{.mmi - // GR_TMP3 = (0x5556)*expon // 0x5556 = (2^{16}+2)/3 - add GR_TMP3 = GR_TMP2, GR_EXP ;; - // FR_T2 = T [ 2 ] [ y ] - ldf8 FR_T2 = [ GR_TP1 ] - // GR_EXP3 = floor(expon/3) - shr GR_EXP3 = GR_TMP3, 16 ;; -} - - -{.mmi - setf.exp FR_2M63 = GR_TMP63 - // GR_TMP4 = 3*exponent - shladd GR_TMP4 = GR_EXP3, 1, GR_EXP3 - // bias exponent - add GR_EBIAS3 = GR_CT3, GR_EXP3 ;; -} - - -{.mmf - // get remainder of exponent/3 - sub GR_REM = GR_EXP, GR_TMP4 - // add sign to exponent - or GR_SEXP = GR_EBIAS3, GR_SIGN - // P_2 = -r*P_1 - fnma.s1 FR_R = FR_COEFF1, FR_R, f0 ;; -} - - - -{.mmi - // FR_ARG = sign*2^{exponent/3} - setf.exp FR_ARG = GR_SEXP - nop.m 0 - // remainder = 0 ? - // p7=1 if input exponent is 3*j (remainder is 0) - cmp.eq.unc p7, p8 = r0, GR_REM ;; -} - - -{.mfi - // remainder = 1 ? - // p8=1 if input exponent is 3*j+1 (remainder is 1) - // p12=1 if input exponent is 3*j+2 (remainder is 2) - (p8) cmp.eq.unc p8, p12 = 1, GR_REM - // p7=1 -> remainder = 0 -> use T = FR_T0 - (p7) fma.s1 f8 = FR_T0, FR_R, FR_T0 - // argument is of the form 2^(3*k) ? - // ( GR_I1 holds significand bits, without the leading 1) - or GR_I1 = GR_I1, GR_REM ;; -} - - -.pred.rel "mutex", p12, p8 -{.mfi - nop.m 0 - // p8=1 -> remainder = 1 -> use FR_T1 - (p8) fma.s1 f8 = FR_T1, FR_R, FR_T1 - // argument is of the form 2^(3*k) ? - cmp.eq p14, p7 = GR_I1, r0 -} - - -{.mfi - nop.m 0 - // p12=1 -> remainder=2 -> result = T+T*P_2 - (p12) fma.s1 f8 = FR_T2, FR_R, FR_T2 - nop.i 0 ;; -} - - -.pred.rel "mutex", p14, p7 -{.mfi - nop.m 0 - // if argument is sgn*2^{3*(expon/3)} - (p14) fma.s.s0 f8 = FR_2M63, FR_ARG, f0 - nop.i 0 -} -{.mfb - nop.m 0 - // T* = sgn*2^{expon/3} - (p7) fma.s.s0 f8 = f8, FR_ARG, f0 - br.ret.sptk b0 ;; -} - - -GLOBAL_LIBM_END(cbrtf) - - - - -- cgit 1.4.1