| .file "acosf.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 |
| // 06/28/00 Improved speed |
| // 06/31/00 Changed register allocation because of some duplicate macros |
| // moved nan exit bundle up to gain a cycle. |
| // 08/15/00 Bundle added after call to __libm_error_support to properly |
| // set [the previously overwritten] GR_Parameter_RESULT. |
| // 08/17/00 Changed predicate register macro-usage to direct predicate |
| // names due to an assembler bug. |
| // 10/17/00 Improved speed of x=0 and x=1 paths, set D flag if x denormal. |
| // 03/13/01 Corrected sign of imm1 value in dep instruction. |
| // 05/20/02 Cleaned up namespace and sf0 syntax |
| // 02/06/03 Reordered header: .section, .global, .proc, .align |
| // 04/17/03 Moved mutex after label |
| |
| |
| // Description |
| //========================================= |
| // The acosf function computes the principle value of the arc sine of x. |
| // A doman error occurs for arguments not in the range [-1,+1]. |
| |
| // The acosf function returns the arc cosine in the range [0, +pi] radians. |
| // acos(1) returns +0 |
| // acos(x) returns a Nan and raises the invalid exception for |x| >1 |
| |
| // |x| <= sqrt(2)/2. get Ax and Bx |
| |
| // poly_p1 = x p1 |
| // poly_p3 = x2 p4 + p3 |
| // poly_p1 = x2 (poly_p1) + x = x2(x p1) + x |
| // poly_p2 = x2( poly_p3) + p2 = x2(x2 p4 + p3) + p2 |
| |
| // poly_Ax = x5(x2( poly_p3) + p2) + x2(x p1) + x |
| // = x5(x2(x2 p4 + p3) + p2) + x2(x p1) + x |
| |
| // poly_p7 = x2 p8 + p7 |
| // poly_p5 = x2 p6 + p5 |
| |
| // poly_p7 = x4 p9 + (x2 p8 + p7) |
| // poly_Bx = x4 (x4 p9 + (x2 p8 + p7)) + x2 p6 + p5 |
| |
| // sinf1 = x11(x4 (x4 p9 + (x2 p8 + p7)) + x2 p6 + p5) + x5(x2(x2 p4 + p3) + p2) + x2(x p1) + x |
| // = x19 p9 + x17 p8 + x15 p7 x13 p6 + x11 p5 + x9 p4 + x7 p3 + x5 p2 + x3 p1 + x |
| // answer1 = pi/2 - sinf1 |
| |
| |
| |
| // |x| > sqrt(2)/2 |
| |
| // Get z = sqrt(1-x2) |
| |
| // Get polynomial in t = 1-x2 |
| |
| // t2 = t t |
| // t4 = t2 t2 |
| |
| // poly_p4 = t p5 + p4 |
| // poly_p1 = t p1 + 1 |
| |
| // poly_p6 = t p7 + p6 |
| // poly_p2 = t p3 + p2 |
| |
| // poly_p8 = t p9 + p8 |
| |
| // poly_p4 = t2 poly_p6 + poly_p4 |
| // = t2 (t p7 + p6) + (t p5 + p4) |
| |
| // poly_p2 = t2 poly_p2 + poly_p1 |
| // = t2 (t p3 + p2) + (t p1 + 1) |
| |
| // poly_p4 = t4 poly_p8 + poly_p4 |
| // = t4 (t p9 + p8) + (t2 (t p7 + p6) + (t p5 + p4)) |
| |
| // P(t) = poly_p2 + t4 poly_p8 |
| // = t2 (t p3 + p2) + (t p1 + 1) + t4 (t4 (t p9 + p8) + (t2 (t p7 + p6) + (t p5 + p4))) |
| // = t3 p3 + t2 p2 + t p1 + 1 + t9 p9 + t8 p8 + t7 p7 + t6 p6 + t5 p5 + t4 p4 |
| |
| |
| // answer2 = sign(x) z P(t) if x>0 |
| // = sign(x) z P(t) + pi if x<0 |
| |
| |
| // |
| // Assembly macros |
| //========================================= |
| |
| // predicate registers |
| //acosf_pred_LEsqrt2by2 = p7 |
| //acosf_pred_GTsqrt2by2 = p8 |
| |
| // integer registers |
| ACOSF_Addr1 = r33 |
| ACOSF_Addr2 = r34 |
| ACOSF_GR_1by2 = r35 |
| |
| ACOSF_GR_3by2 = r36 |
| ACOSF_GR_5by2 = r37 |
| |
| GR_SAVE_B0 = r38 |
| GR_SAVE_PFS = r39 |
| GR_SAVE_GP = r40 |
| |
| GR_Parameter_X = r41 |
| GR_Parameter_Y = r42 |
| GR_Parameter_RESULT = r43 |
| GR_Parameter_TAG = r44 |
| |
| // floating point registers |
| |
| acosf_y = f32 |
| acosf_abs_x = f33 |
| acosf_x2 = f34 |
| acosf_sgn_x = f35 |
| |
| acosf_1by2 = f36 |
| acosf_3by2 = f37 |
| acosf_5by2 = f38 |
| acosf_coeff_P3 = f39 |
| acosf_coeff_P8 = f40 |
| |
| acosf_coeff_P1 = f41 |
| acosf_coeff_P4 = f42 |
| acosf_coeff_P5 = f43 |
| acosf_coeff_P2 = f44 |
| acosf_coeff_P7 = f45 |
| |
| acosf_coeff_P6 = f46 |
| acosf_coeff_P9 = f47 |
| acosf_x2 = f48 |
| acosf_x3 = f49 |
| acosf_x4 = f50 |
| |
| acosf_x8 = f51 |
| acosf_x5 = f52 |
| acosf_const_piby2 = f53 |
| acosf_const_sqrt2by2 = f54 |
| acosf_x11 = f55 |
| |
| acosf_poly_p1 = f56 |
| acosf_poly_p3 = f57 |
| acosf_sinf1 = f58 |
| acosf_poly_p2 = f59 |
| acosf_poly_Ax = f60 |
| |
| acosf_poly_p7 = f61 |
| acosf_poly_p5 = f62 |
| acosf_sgnx_t4 = f63 |
| acosf_poly_Bx = f64 |
| acosf_t = f65 |
| |
| acosf_yby2 = f66 |
| acosf_B = f67 |
| acosf_B2 = f68 |
| acosf_Az = f69 |
| acosf_dz = f70 |
| |
| acosf_Sz = f71 |
| acosf_d2z = f72 |
| acosf_Fz = f73 |
| acosf_z = f74 |
| acosf_sgnx_z = f75 |
| |
| acosf_t2 = f76 |
| acosf_2poly_p4 = f77 |
| acosf_2poly_p6 = f78 |
| acosf_2poly_p1 = f79 |
| acosf_2poly_p2 = f80 |
| |
| acosf_2poly_p8 = f81 |
| acosf_t4 = f82 |
| acosf_Pt = f83 |
| acosf_sgnx_2poly_p2 = f84 |
| acosf_sgn_x_piby2 = f85 |
| |
| acosf_poly_p7a = f86 |
| acosf_2poly_p4a = f87 |
| acosf_2poly_p4b = f88 |
| acosf_2poly_p2a = f89 |
| acosf_poly_p1a = f90 |
| |
| |
| |
| |
| |
| // Data tables |
| //============================================================== |
| |
| RODATA |
| |
| .align 16 |
| |
| LOCAL_OBJECT_START(acosf_coeff_1_table) |
| data8 0x3FC5555607DCF816 // P1 |
| data8 0x3F9CF81AD9BAB2C6 // P4 |
| data8 0x3FC59E0975074DF3 // P7 |
| data8 0xBFA6F4CC2780AA1D // P6 |
| data8 0x3FC2DD45292E93CB // P9 |
| data8 0x3fe6a09e667f3bcd // sqrt(2)/2 |
| LOCAL_OBJECT_END(acosf_coeff_1_table) |
| |
| LOCAL_OBJECT_START(acosf_coeff_2_table) |
| data8 0x3FA6F108E31EFBA6 // P3 |
| data8 0xBFCA31BF175D82A0 // P8 |
| data8 0x3FA30C0337F6418B // P5 |
| data8 0x3FB332C9266CB1F9 // P2 |
| data8 0x3ff921fb54442d18 // pi_by_2 |
| LOCAL_OBJECT_END(acosf_coeff_2_table) |
| |
| |
| .section .text |
| GLOBAL_LIBM_ENTRY(acosf) |
| |
| // Load the addresses of the two tables. |
| // Then, load the coefficients and other constants. |
| |
| { .mfi |
| alloc r32 = ar.pfs,1,8,4,0 |
| fnma.s1 acosf_t = f8,f8,f1 |
| dep.z ACOSF_GR_1by2 = 0x3f,24,8 // 0x3f000000 |
| } |
| { .mfi |
| addl ACOSF_Addr1 = @ltoff(acosf_coeff_1_table),gp |
| fma.s1 acosf_x2 = f8,f8,f0 |
| addl ACOSF_Addr2 = @ltoff(acosf_coeff_2_table),gp ;; |
| } |
| |
| |
| { .mfi |
| ld8 ACOSF_Addr1 = [ACOSF_Addr1] |
| fmerge.s acosf_abs_x = f1,f8 |
| dep ACOSF_GR_3by2 = -1,r0,22,8 // 0x3fc00000 |
| } |
| { .mlx |
| nop.m 999 |
| movl ACOSF_GR_5by2 = 0x40200000;; |
| } |
| |
| |
| |
| { .mfi |
| setf.s acosf_1by2 = ACOSF_GR_1by2 |
| fmerge.s acosf_sgn_x = f8,f1 |
| nop.i 999 |
| } |
| { .mfi |
| ld8 ACOSF_Addr2 = [ACOSF_Addr2] |
| nop.f 0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| setf.s acosf_5by2 = ACOSF_GR_5by2 |
| fcmp.lt.s1 p11,p12 = f8,f0 |
| nop.i 999;; |
| } |
| |
| { .mmf |
| ldfpd acosf_coeff_P1,acosf_coeff_P4 = [ACOSF_Addr1],16 |
| setf.s acosf_3by2 = ACOSF_GR_3by2 |
| fclass.m.unc p8,p0 = f8, 0xc3 ;; //@qnan | @snan |
| } |
| |
| |
| { .mfi |
| ldfpd acosf_coeff_P7,acosf_coeff_P6 = [ACOSF_Addr1],16 |
| fma.s1 acosf_t2 = acosf_t,acosf_t,f0 |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd acosf_coeff_P3,acosf_coeff_P8 = [ACOSF_Addr2],16 |
| fma.s1 acosf_x4 = acosf_x2,acosf_x2,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd acosf_coeff_P9,acosf_const_sqrt2by2 = [ACOSF_Addr1] |
| fclass.m.unc p10,p0 = f8, 0x07 //@zero |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd acosf_coeff_P5,acosf_coeff_P2 = [ACOSF_Addr2],16 |
| fma.s1 acosf_x3 = f8,acosf_x2,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfd acosf_const_piby2 = [ACOSF_Addr2] |
| frsqrta.s1 acosf_B,p0 = acosf_t |
| nop.i 999 |
| } |
| { .mfb |
| nop.m 999 |
| (p8) fma.s.s0 f8 = f8,f1,f0 |
| (p8) br.ret.spnt b0 ;; // Exit if x=nan |
| } |
| |
| |
| { .mfb |
| nop.m 999 |
| fcmp.eq.s1 p6,p0 = acosf_abs_x,f1 |
| (p10) br.cond.spnt ACOSF_ZERO ;; // Branch if x=0 |
| } |
| |
| { .mfi |
| nop.m 999 |
| fcmp.gt.s1 p9,p0 = acosf_abs_x,f1 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_x8 = acosf_x4,acosf_x4,f0 |
| nop.i 999 |
| } |
| { .mfb |
| nop.m 999 |
| fma.s1 acosf_t4 = acosf_t2,acosf_t2,f0 |
| (p6) br.cond.spnt ACOSF_ABS_ONE ;; // Branch if |x|=1 |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_x5 = acosf_x2,acosf_x3,f0 |
| nop.i 999 |
| } |
| { .mfb |
| (p9) mov GR_Parameter_TAG = 59 |
| fma.s1 acosf_yby2 = acosf_t,acosf_1by2,f0 |
| (p9) br.cond.spnt __libm_error_region ;; // Branch if |x|>1 |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_Az = acosf_t,acosf_B,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_B2 = acosf_B,acosf_B,f0 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p1 = f8,acosf_coeff_P1,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_2poly_p1 = acosf_coeff_P1,acosf_t,f1 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p3 = acosf_coeff_P4,acosf_x2,acosf_coeff_P3 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_2poly_p6 = acosf_coeff_P7,acosf_t,acosf_coeff_P6 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p7 = acosf_x2,acosf_coeff_P8,acosf_coeff_P7 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_2poly_p2 = acosf_coeff_P3,acosf_t,acosf_coeff_P2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p5 = acosf_x2,acosf_coeff_P6,acosf_coeff_P5 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_2poly_p4 = acosf_coeff_P5,acosf_t,acosf_coeff_P4 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_x11 = acosf_x8,acosf_x3,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fnma.s1 acosf_dz = acosf_B2,acosf_yby2,acosf_1by2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p1a = acosf_x2,acosf_poly_p1,f8 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_2poly_p8 = acosf_coeff_P9,acosf_t,acosf_coeff_P8 |
| nop.i 999;; |
| } |
| |
| |
| // Get the absolute value of x and determine the region in which x lies |
| |
| { .mfi |
| nop.m 999 |
| fcmp.le.s1 p7,p8 = acosf_abs_x,acosf_const_sqrt2by2 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p2 = acosf_x2,acosf_poly_p3,acosf_coeff_P2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_poly_p7a = acosf_x4,acosf_coeff_P9,acosf_poly_p7 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 acosf_2poly_p2a = acosf_2poly_p2,acosf_t2,acosf_2poly_p1 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_sgnx_t4 = acosf_sgn_x,acosf_t4,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_2poly_p4a = acosf_2poly_p6,acosf_t2,acosf_2poly_p4 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_Sz = acosf_5by2,acosf_dz,acosf_3by2 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_d2z = acosf_dz,acosf_dz,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| (p8) fnma.d.s1 acosf_sgn_x_piby2 = acosf_sgn_x,acosf_const_piby2,acosf_const_piby2 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| (p7) fma.s1 acosf_poly_Ax = acosf_x5,acosf_poly_p2,acosf_poly_p1a |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| (p7) fma.s1 acosf_poly_Bx = acosf_x4,acosf_poly_p7a,acosf_poly_p5 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_sgnx_2poly_p2 = acosf_sgn_x,acosf_2poly_p2a,f0 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fcmp.eq.s0 p6,p0 = f8,f0 // Only purpose is to set D if x denormal |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_2poly_p4b = acosf_2poly_p8,acosf_t4,acosf_2poly_p4a |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| (p8) fma.s1 acosf_Fz = acosf_d2z,acosf_Sz,acosf_dz |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| (p8) fma.d.s1 acosf_Pt = acosf_2poly_p4b,acosf_sgnx_t4,acosf_sgnx_2poly_p2 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| (p8) fma.d.s1 acosf_z = acosf_Az,acosf_Fz,acosf_Az |
| nop.i 999 ;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| (p7) fma.d.s1 acosf_sinf1 = acosf_x11,acosf_poly_Bx,acosf_poly_Ax |
| nop.i 999;; |
| } |
| |
| .pred.rel "mutex",p8,p7 //acosf_pred_GTsqrt2by2,acosf_pred_LEsqrt2by2 |
| { .mfi |
| nop.m 999 |
| (p8) fma.s.s0 f8 = acosf_z,acosf_Pt,acosf_sgn_x_piby2 |
| nop.i 999 |
| } |
| |
| { .mfb |
| nop.m 999 |
| (p7) fms.s.s0 f8 = acosf_const_piby2,f1,acosf_sinf1 |
| br.ret.sptk b0 ;; |
| } |
| |
| ACOSF_ZERO: |
| // Here if x=0 |
| { .mfb |
| nop.m 999 |
| fma.s.s0 f8 = acosf_const_piby2,f1,f0 // acosf(0)=pi/2 |
| br.ret.sptk b0 ;; |
| } |
| |
| |
| ACOSF_ABS_ONE: |
| .pred.rel "mutex",p11,p12 |
| // Here if |x|=1 |
| { .mfi |
| nop.m 999 |
| (p11) fma.s.s0 f8 = acosf_const_piby2,f1,acosf_const_piby2 // acosf(-1)=pi |
| nop.i 999 |
| } |
| { .mfb |
| nop.m 999 |
| (p12) fma.s.s0 f8 = f1,f0,f0 // acosf(1)=0 |
| br.ret.sptk b0 ;; |
| } |
| |
| GLOBAL_LIBM_END(acosf) |
| |
| |
| // Stack operations when calling error support. |
| // (1) (2) |
| // sp -> + psp -> + |
| // | | |
| // | | <- GR_Y |
| // | | |
| // | <-GR_Y Y2->| |
| // | | |
| // | | <- GR_X |
| // | | |
| // sp-64 -> + sp -> + |
| // save ar.pfs save b0 |
| // save gp |
| |
| |
| // Stack operations when calling error support. |
| // (3) (call) (4) |
| // psp -> + sp -> + |
| // | | |
| // R3 ->| <- GR_RESULT | -> f8 |
| // | | |
| // Y2 ->| <- GR_Y | |
| // | | |
| // X1 ->| | |
| // | | |
| // sp -> + + |
| // restore gp |
| // restore ar.pfs |
| |
| |
| LOCAL_LIBM_ENTRY(__libm_error_region) |
| .prologue |
| { .mfi |
| add GR_Parameter_Y=-32,sp // Parameter 2 value |
| nop.f 999 |
| .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 |
| stfs [GR_Parameter_Y] = f1,16 // Store 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 |
| { .mfi |
| nop.m 0 |
| frcpa.s0 f9,p0 = f0,f0 |
| nop.i 0 |
| };; |
| |
| { .mib |
| stfs [GR_Parameter_X] = f8 // Store Parameter 1 on stack |
| add GR_Parameter_RESULT = 0,GR_Parameter_Y |
| nop.b 0 // Parameter 3 address |
| } |
| { .mib |
| stfs [GR_Parameter_Y] = f9 // 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 |
| ldfs 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# |
