diff options
Diffstat (limited to 'libc/sysdeps/ia64/fpu/e_hypotl.S')
| -rw-r--r-- | libc/sysdeps/ia64/fpu/e_hypotl.S | 478 |
1 files changed, 0 insertions, 478 deletions
diff --git a/libc/sysdeps/ia64/fpu/e_hypotl.S b/libc/sysdeps/ia64/fpu/e_hypotl.S deleted file mode 100644 index 988b86e76..000000000 --- a/libc/sysdeps/ia64/fpu/e_hypotl.S +++ /dev/null @@ -1,478 +0,0 @@ -.file "hypotl.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 hand-optimized -// 04/04/00 Unwind support added -// 06/20/00 new version -// 08/15/00 Bundle added after call to __libm_error_support to properly -// set [the previously overwritten] GR_Parameter_RESULT. -// 05/20/02 Cleaned up namespace and sf0 syntax -// 02/10/03 Reordered header: .section, .global, .proc, .align -// -//********************************************************************* -// ___________ -// Function: hypotl(x,y) = |(x^2 + y^2) = for double extended values -// x and y -// Also provides cabsl functionality. -// -//********************************************************************* -// -// Resources Used: -// -// Floating-Point Registers: f8 (Input and Return Value) -// f9 (Input) -// f6 -f15, f32-f34 -// -// General Purpose Registers: -// r2-r3 (Scratch) -// r32-r36 (Locals) -// r37-r40 (Used to pass arguments to error handling routine) -// -// Predicate Registers: p6 - p10 -// -//********************************************************************* -// -// IEEE Special Conditions: -// -// All faults and exceptions should be raised correctly. -// Overflow can occur. -// hypotl(Infinity and anything) = +Infinity -// hypotl(QNaN and anything) = QNaN -// hypotl(SNaN and anything ) = QNaN -// -//********************************************************************* -// -// Implementation: -// x2 = x * x in double-extended -// y2 = y * y in double-extended -// temp = x2 + y2 in double-extended -// sqrt(temp) rounded to double extended -// -//********************************************************************* - -GR_SAVE_PFS = r33 -GR_SAVE_B0 = r34 -GR_SAVE_GP = r35 -GR_Parameter_X = r36 -GR_Parameter_Y = r37 -GR_Parameter_RESULT = r38 -GR_Parameter_TAG = r39 - -FR_X = f32 -FR_Y = f33 -FR_RESULT = f8 - -.section .text - -LOCAL_LIBM_ENTRY(cabsl) -LOCAL_LIBM_END(cabsl) - -GLOBAL_IEEE754_ENTRY(hypotl) -{.mfi - alloc r32= ar.pfs,0,4,4,0 - // Compute x*x - fma.s1 f10=f8,f8,f0 - // r2=bias-1 - mov r2=0xfffe -} -{.mfi - nop.m 0 - // y*y - fma.s1 f11=f9,f9,f0 - nop.i 0;; -} - -{ .mfi - nop.m 0 -// Check if x is an Inf - if so return Inf even -// if y is a NaN (C9X) - fclass.m.unc p7, p6 = f8, 0x023 - nop.i 0 -} -{.mfi - nop.m 0 - // if possible overflow, copy f8 to f32 - // set Denormal, if necessary - // (p8) - fma.s0 f32=f8,f1,f0 - nop.i 0;; -} -{ .mfi - nop.m 0 -// Check if y is an Inf - if so return Inf even -// if x is a NaN (C9X) - fclass.m.unc p8, p9 = f9, 0x023 - nop.i 0 -} -{ .mfi - nop.m 999 -// For x=inf, multiply y by 1 to raise invalid on y an SNaN -// (p7) fma.s0 f9=f9,f1,f0 - // copy f9 to f33; set Denormal, if necessary - fma.s0 f33=f9,f1,f0 - nop.i 0;; -} -{.mfi - nop.m 0 - // is y Zero ? - (p6) fclass.m p6,p0=f9,0x7 - nop.i 0;; -} - -{.mfi - // f7=0.5 - setf.exp f7=r2 - // a=x2+y2 - fma.s1 f12=f10,f1,f11 - nop.i 0 -} -{.mfi - mov r2=0x408c //0000 - // dx=x*x-x2 - fms.s1 f13=f8,f8,f10 - nop.i 0;; -} -{.mfi - nop.m 0 - // is x Zero ? - (p9) fclass.m p9,p0=f8,0x7 - shl r2=r2,16 -} -{.mfi - nop.m 0 - // dy=y*y-y2 - fms.s1 f14=f9,f9,f11 - nop.i 0;; -} - -{.mfi - nop.m 0 - // x not NaN ? - (p6) fclass.m p7,p0=f8,0x3f - nop.i 0 -} -{.mfi - nop.m 0 - // f6=2 - fma.s1 f6=f1,f1,f1 - nop.i 0;; -} - -{.mfi - nop.m 0 - // f34=min(x2,y2) - famin.s1 f34=f10,f11 - nop.i 0 -} -{.mfb - nop.m 0 - // f10=max(x2,y2) - famax.s1 f10=f11,f10 - nop.b 0;; // -} - -{.mfi - nop.m 0 - // y not NaN ? - (p9) fclass.m p8,p0=f9,0x3f - nop.i 0;; -} -{.mfb - // f9=35/8 - setf.s f9=r2 - // if f8=Infinity or f9=Zero, return |f8| - (p7) fmerge.s f8=f0,f32 - (p7) br.ret.spnt b0;; -} - - -{.mfi - nop.m 0 - // z0=frsqrta(a) - frsqrta.s1 f8,p6=f12 - nop.i 0;; -} -{ .mfi - nop.m 0 -// Identify Natvals, Infs, NaNs, and Zeros -// and return result - fclass.m.unc p7, p0 = f12, 0x1E7 - nop.i 0 -} -{.mfi - // get exponent of x^2+y^2 - getf.exp r3=f12 - // dxy=dx+dy - fma.s1 f13=f13,f1,f14 - nop.i 0;; -} - -{.mfb - // 2*emax-2 - mov r2=0x17ffb - // if f9=Infinity or f8=Zero, return |f9| - (p8) fmerge.s f8=f0,f33 - (p8) br.ret.spnt b0 -} -{.mfi - nop.m 0 - // dd=a-max(x2,y2) - fnma.s1 f10=f10,f1,f12 - nop.i 0;; -} - -{.mfi - nop.m 0 - // S0=a*z0 - (p6) fma.s1 f14=f12,f8,f0 - nop.i 0 -} -{.mfi - nop.m 0 - // H0=0.5*z0 - (p6) fma.s1 f15=f8,f7,f0 - nop.i 0;; -} - -{.mfb - nop.m 0 - // if special case, set f8 - (p7) mov f8=f12 - (p7) br.ret.spnt b0 -} -{.mfi - nop.m 0 - // da=min(x2,y2)-dd - fnma.s1 f10=f10,f1,f34 - nop.i 0;; -} -{.mfi - nop.m 0 - // f6=5/2 - fma.s1 f6=f7,f1,f6 - nop.i 0 -} -{.mfi - nop.m 0 - // f11=3/2 - fma.s1 f11=f7,f1,f1 - nop.i 0;; -} - -{.mfi - nop.m 0 - // d=0.5-S0*H0 - (p6) fnma.s1 f7=f14,f15,f7 - nop.i 0;; -} - -{.mfi - nop.m 0 - // P1=3/2*d+1 - (p6) fma.s1 f11=f11,f7,f1 - nop.i 0 -} -{.mfi - nop.m 0 - // P2=35/8*d+5/2 - (p6) fma.s1 f9=f9,f7,f6 - nop.i 0;; -} -{.mfi - nop.m 0 - // d2=d*d - (p6) fma.s1 f34=f7,f7,f0 - nop.i 0;; -} - -{.mfi - nop.m 0 - // T0=d*S0 - (p6) fma.s1 f6=f7,f14,f0 - nop.i 0 -} -{.mfi - nop.m 0 - // G0=d*H0 - (p6) fma.s1 f7=f7,f15,f0 - nop.i 0;; -} -{.mfi - nop.m 0 - // P=d2*P2+P1 - (p6) fma.s1 f11=f34,f9,f11 - nop.i 0;; -} - -{.mfi - nop.m 0 - // S1=p*T0+S0 - (p6) fma.s1 f14=f11,f6,f14 - nop.i 0 -} -{.mfi - nop.m 0 - // H1=p*G0+H0 - (p6) fma.s1 f15=f11,f7,f15 - nop.i 0;; -} - - -{.mfi - nop.m 0 - // e1=a-S1*S1 - (p6) fnma.s1 f7=f14,f14,f12 - nop.i 0 -} -{.mfi - // Is x^2 + y^2 well less than the overflow - // threshold? - (p6) cmp.lt.unc p7, p8 = r3,r2 - // c=dxy+da - (p6) fma.s1 f13=f13,f1,f10 - nop.i 0;; -} - -{.mfi - nop.m 0 - // e=e1+c - (p6) fma.s1 f13=f7,f1,f13 - nop.i 0;; -} - -{.mfb - nop.m 0 - // S=e*H1+S1 - fma.s0 f8=f13,f15,f14 - // No overflow in this case - (p7) br.ret.sptk b0;; -} - -{ .mfi - nop.m 0 -(p8) fsetc.s2 0x7F,0x42 - // Possible overflow path, must detect by - // Setting widest range exponent with prevailing - // rounding mode. - nop.i 0 ;; -} - - -{ .mfi - // bias+0x4000 (bias+EMAX+1) - (p8) mov r2=0x13fff - // S=e*H1+S1 - (p8) fma.s2 f12=f13,f15,f14 - nop.i 0 ;; -} -{ .mfi -(p8) setf.exp f11 = r2 -(p8) fsetc.s2 0x7F,0x40 -// Restore Original Mode in S2 - nop.i 0 ;; -} -{ .mfi - nop.m 0 -(p8) fcmp.lt.unc.s1 p9, p10 = f12, f11 - nop.i 0 ;; -} -{ .mib - nop.m 0 - mov GR_Parameter_TAG = 45; - // No overflow -(p9) br.ret.sptk b0;; -} -GLOBAL_IEEE754_END(hypotl) - -LOCAL_LIBM_ENTRY(__libm_error_region) -.prologue -{ .mfi - add GR_Parameter_Y=-32,sp // Parameter 2 value - nop.f 0 -.save ar.pfs,GR_SAVE_PFS - mov GR_SAVE_PFS=ar.pfs // Save ar.pfs -} -{ .mfi -.fframe 64 - add sp=-64,sp // Create new stack - nop.f 0 - mov GR_SAVE_GP=gp // Save gp -};; -{ .mmi - stfe [GR_Parameter_Y] = FR_Y,16 // Save Parameter 2 on stack - add GR_Parameter_X = 16,sp // Parameter 1 address -.save b0, GR_SAVE_B0 - mov GR_SAVE_B0=b0 // Save b0 -};; -.body -{ .mib - stfe [GR_Parameter_X] = FR_X // Store Parameter 1 on stack - add GR_Parameter_RESULT = 0,GR_Parameter_Y - nop.b 0 // Parameter 3 address -} -{ .mib - stfe [GR_Parameter_Y] = FR_RESULT // Store Parameter 3 on stack - add GR_Parameter_Y = -16,GR_Parameter_Y - br.call.sptk b0=__libm_error_support# // Call error handling function -};; -{ .mmi - nop.m 0 - nop.m 0 - add GR_Parameter_RESULT = 48,sp -};; -{ .mmi - ldfe f8 = [GR_Parameter_RESULT] // Get return result off stack -.restore sp - add sp = 64,sp // Restore stack pointer - mov b0 = GR_SAVE_B0 // Restore return address -};; -{ .mib - mov gp = GR_SAVE_GP // Restore gp - mov ar.pfs = GR_SAVE_PFS // Restore ar.pfs - br.ret.sptk b0 // Return -};; -LOCAL_LIBM_END(__libm_error_region#) -.type __libm_error_support#,@function -.global __libm_error_support# - - - |