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;; Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.;;;; This file is part of GCC.;;;; GCC is free software; you can redistribute it and/or modify;; it under the terms of the GNU General Public License as published by;; the Free Software Foundation; either version 3, or (at your option);; any later version.;;;; GCC is distributed in the hope that it will be useful,;; but WITHOUT ANY WARRANTY; without even the implied warranty of;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the;; GNU General Public License for more details.;;;; You should have received a copy of the GNU General Public License;; along with GCC; see the file COPYING3. If not see;; <http://www.gnu.org/licenses/>.;; For the internal conditional math routines:;; operand 0 is always the result;; operand 1 is always the predicate;; operand 2, 3, and sometimes 4 are the input values.;; operand 4 or 5 is the floating point status register to use.;; operand 5 or 6 is the rounding to do. (0 = single, 1 = double, 2 = none);;;; addrf3_cond - F0 = F2 + F3;; subrf3_cond - F0 = F2 - F3;; mulrf3_cond - F0 = F2 * F3;; nmulrf3_cond - F0 = - (F2 * F3);; m1addrf4_cond - F0 = (F2 * F3) + F4;; m1subrf4_cond - F0 = (F2 * F3) - F4;; m2addrf4_cond - F0 = F2 + (F3 * F4);; m2subrf4_cond - F0 = F2 - (F3 * F4);; Basic plus/minus/mult operations(define_insn "addrf3_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(plus:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 4 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 5 "const_int_operand" ""))(use (match_operand:SI 6 "const_int_operand" ""))]"""(%1) fadd%R6.s%5 %0 = %F2, %F3"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")])(define_insn "subrf3_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(minus:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 4 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 5 "const_int_operand" ""))(use (match_operand:SI 6 "const_int_operand" ""))]"""(%1) fsub%R6.s%5 %0 = %F2, %F3"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")])(define_insn "mulrf3_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(mult:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 4 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 5 "const_int_operand" ""))(use (match_operand:SI 6 "const_int_operand" ""))]"""(%1) fmpy%R6.s%5 %0 = %F2, %F3"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")]);; neg-mult operation(define_insn "nmulrf3_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(neg:RF (mult:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG")))(match_operand:RF 4 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 5 "const_int_operand" ""))(use (match_operand:SI 6 "const_int_operand" ""))]"""(%1) fnmpy%R6.s%5 %0 = %F2, %F3"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")]);; add-mult/sub-mult operations (mult as op1)(define_insn "m1addrf4_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(plus:RF(mult:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 4 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 5 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 6 "const_int_operand" ""))(use (match_operand:SI 7 "const_int_operand" ""))]"""(%1) fma%R7.s%6 %0 = %F2, %F3, %F4"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")])(define_insn "m1subrf4_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(minus:RF(mult:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 4 "fr_reg_or_fp01_operand" "fG,fG"))(match_operand:RF 5 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 6 "const_int_operand" ""))(use (match_operand:SI 7 "const_int_operand" ""))]"""(%1) fms%R7.s%6 %0 = %F2, %F3, %F4"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")]);; add-mult/sub-mult operations (mult as op2)(define_insn "m2addrf4_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(plus:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(mult:RF(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 4 "fr_reg_or_fp01_operand" "fG,fG")))(match_operand:RF 5 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 6 "const_int_operand" ""))(use (match_operand:SI 7 "const_int_operand" ""))]"""(%1) fma%R7.s%6 %0 = %F3, %F4, %F2"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")])(define_insn "m2subrf4_cond"[(set (match_operand:RF 0 "fr_register_operand" "=f,f")(if_then_else:RF (ne:RF (match_operand:BI 1 "register_operand" "c,c")(const_int 0))(minus:RF(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG,fG")(mult:RF(match_operand:RF 3 "fr_reg_or_fp01_operand" "fG,fG")(match_operand:RF 4 "fr_reg_or_fp01_operand" "fG,fG")))(match_operand:RF 5 "fr_reg_or_0_operand" "0,H")))(use (match_operand:SI 6 "const_int_operand" ""))(use (match_operand:SI 7 "const_int_operand" ""))]"""(%1) fnma%R7.s%6 %0 = %F3, %F4, %F2"[(set_attr "itanium_class" "fmac")(set_attr "predicable" "no")]);; Conversions to/from RF and SF/DF/XF;; These conversions should not generate any code but make it possible;; for all the instructions used to implement floating point division;; to be written for RFmode only and to not have to handle multiple;; modes or to have to handle a register in more than one mode.(define_mode_iterator SDX_F [SF DF XF])(define_insn "extend<mode>rf2"[(set (match_operand:RF 0 "fr_register_operand" "=f")(float_extend:RF (match_operand:SDX_F 1 "fr_reg_or_fp01_operand" "fG")))]"""#"[(set_attr "itanium_class" "fmisc")(set_attr "predicable" "yes")])(define_split[(set (match_operand:RF 0 "fr_register_operand" "")(float_extend:RF (match_operand:SDX_F 1 "fr_reg_or_fp01_operand" "")))]"reload_completed"[(set (match_dup 0) (match_dup 2))]{if (operands[1] == CONST0_RTX (<MODE>mode))operands[2] = gen_rtx_REG (RFmode, FR_REG (0));else if (operands[1] == CONST1_RTX (<MODE>mode))operands[2] = gen_rtx_REG (RFmode, FR_REG (1));elseoperands[2] = gen_rtx_REG (RFmode, REGNO (operands[1]));})(define_insn "truncrf<mode>2"[(set (match_operand:SDX_F 0 "fr_register_operand" "=f")(float_truncate:SDX_F (match_operand:RF 1 "fr_reg_or_fp01_operand" "fG")))]"""#"[(set_attr "itanium_class" "fmisc")(set_attr "predicable" "yes")])(define_split[(set (match_operand:SDX_F 0 "fr_register_operand" "")(float_truncate:SDX_F (match_operand:RF 1 "fr_reg_or_fp01_operand" "")))]"reload_completed"[(set (match_dup 0) (match_dup 2))]{if (operands[1] == CONST0_RTX (RFmode))operands[2] = gen_rtx_REG (<MODE>mode, FR_REG (0));else if (operands[1] == CONST1_RTX (RFmode))operands[2] = gen_rtx_REG (<MODE>mode, FR_REG (1));elseoperands[2] = gen_rtx_REG (<MODE>mode, REGNO (operands[1]));});; Float to integer truncations using an alternative status register.(define_insn "fix_truncrfdi2_alts"[(set (match_operand:DI 0 "fr_register_operand" "=f")(fix:DI (match_operand:RF 1 "fr_register_operand" "f")))(use (match_operand:SI 2 "const_int_operand" ""))]"""fcvt.fx.trunc.s%2 %0 = %1"[(set_attr "itanium_class" "fcvtfx")])(define_insn "fixuns_truncrfdi2_alts"[(set (match_operand:DI 0 "fr_register_operand" "=f")(unsigned_fix:DI (match_operand:RF 1 "fr_register_operand" "f")))(use (match_operand:SI 2 "const_int_operand" ""))]"""fcvt.fxu.trunc.s%2 %0 = %1"[(set_attr "itanium_class" "fcvtfx")])(define_insn "setf_exp_rf"[(set (match_operand:RF 0 "fr_register_operand" "=f")(unspec:RF [(match_operand:DI 1 "register_operand" "r")]UNSPEC_SETF_EXP))]"""setf.exp %0 = %1"[(set_attr "itanium_class" "frfr")]);; Reciprocal approximation(define_insn "recip_approx_rf"[(set (match_operand:RF 0 "fr_register_operand" "=f")(unspec:RF [(match_operand:RF 1 "fr_reg_or_fp01_operand" "fG")(match_operand:RF 2 "fr_reg_or_fp01_operand" "fG")]UNSPEC_FR_RECIP_APPROX_RES))(set (match_operand:BI 3 "register_operand" "=c")(unspec:BI [(match_dup 1) (match_dup 2)] UNSPEC_FR_RECIP_APPROX))(use (match_operand:SI 4 "const_int_operand" ""))]"""frcpa.s%4 %0, %3 = %F1, %F2"[(set_attr "itanium_class" "fmisc")(set_attr "predicable" "no")]);; Single precision floating point division(define_expand "divsf3"[(set (match_operand:SF 0 "fr_register_operand" "")(div:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "")(match_operand:SF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx insn;if (TARGET_INLINE_FLOAT_DIV == INL_MIN_LAT)insn = gen_divsf3_internal_lat (operands[0], operands[1], operands[2]);elseinsn = gen_divsf3_internal_thr (operands[0], operands[1], operands[2]);emit_insn (insn);DONE;});; Single precision floating point division (maximum throughput algorithm).(define_expand "divsf3_internal_thr"[(set (match_operand:SF 0 "fr_register_operand" "")(div:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "")(match_operand:SF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx y = gen_reg_rtx (RFmode);rtx a = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx y2 = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx q_res = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_sgl = CONST0_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Empty conversions to put inputs into RFmode. */emit_insn (gen_extendsfrf2 (a, operands[1]));emit_insn (gen_extendsfrf2 (b, operands[2]));/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status0));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* y1 = y + (y * e) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e, zero, status1, trunc_off));/* y2 = y + (y1 * e) */emit_insn (gen_m2addrf4_cond (y2, cond, y, y1, e, zero, status1, trunc_off));/* q = single(a * y2) */emit_insn (gen_mulrf3_cond (q, cond, a, y2, zero, status1, trunc_sgl));/* r = a - (q * b) */emit_insn (gen_m2subrf4_cond (r, cond, a, q, b, zero, status1, trunc_off));/* Q = single (q + (r * y2)) */emit_insn (gen_m2addrf4_cond (q_res, cond, q, r, y2, y, status0, trunc_sgl));/* Conversion back into SFmode. */emit_insn (gen_truncrfsf2 (operands[0], q_res));DONE;});; Single precision floating point division (minimum latency algorithm).(define_expand "divsf3_internal_lat"[(set (match_operand:SF 0 "fr_register_operand" "")(div:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "")(match_operand:SF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx y = gen_reg_rtx (RFmode);rtx a = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx q1 = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx q_res = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_sgl = CONST0_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Empty conversions to put inputs into RFmode. */emit_insn (gen_extendsfrf2 (a, operands[1]));emit_insn (gen_extendsfrf2 (b, operands[2]));/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status0));/* q = a * y */emit_insn (gen_mulrf3_cond (q, cond, a, y, zero, status1, trunc_off));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* e1 = e + (e * e) */emit_insn (gen_m2addrf4_cond (e1, cond, e, e, e, zero, status1, trunc_off));/* q1 = single(q + (q * e1)) */emit_insn (gen_m2addrf4_cond (q1, cond, q, q, e1, zero, status1, trunc_sgl));/* y1 = y + (y * e1) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e1, zero, status1, trunc_off));/* r = a - (q1 * b) */emit_insn (gen_m2subrf4_cond (r, cond, a, q1, b, zero, status1, trunc_off));/* Q = single (q1 + (r * y1)) */emit_insn (gen_m2addrf4_cond (q_res, cond, q1, r, y1, y, status0, trunc_sgl));/* Conversion back into SFmode. */emit_insn (gen_truncrfsf2 (operands[0], q_res));DONE;});; Double precision floating point division(define_expand "divdf3"[(set (match_operand:DF 0 "fr_register_operand" "")(div:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "")(match_operand:DF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx insn;if (TARGET_INLINE_FLOAT_DIV == INL_MIN_LAT)insn = gen_divdf3_internal_lat (operands[0], operands[1], operands[2]);elseinsn = gen_divdf3_internal_thr (operands[0], operands[1], operands[2]);emit_insn (insn);DONE;});; Double precision floating point division (maximum throughput algorithm).(define_expand "divdf3_internal_thr"[(set (match_operand:DF 0 "fr_register_operand" "")(div:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "")(match_operand:DF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx q_res = gen_reg_rtx (RFmode);rtx a = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx y = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx y2 = gen_reg_rtx (RFmode);rtx e2 = gen_reg_rtx (RFmode);rtx y3 = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_dbl = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Empty conversions to put inputs into RFmode */emit_insn (gen_extenddfrf2 (a, operands[1]));emit_insn (gen_extenddfrf2 (b, operands[2]));/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status0));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* y1 = y + (y * e) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e, zero, status1, trunc_off));/* e1 = e * e */emit_insn (gen_mulrf3_cond (e1, cond, e, e, zero, status1, trunc_off));/* y2 = y1 + (y1 * e1) */emit_insn (gen_m2addrf4_cond (y2, cond, y1, y1, e1, zero, status1, trunc_off));/* e2 = e1 * e1 */emit_insn (gen_mulrf3_cond (e2, cond, e1, e1, zero, status1, trunc_off));/* y3 = y2 + (y2 * e2) */emit_insn (gen_m2addrf4_cond (y3, cond, y2, y2, e2, zero, status1, trunc_off));/* q = double (a * y3) */emit_insn (gen_mulrf3_cond (q, cond, a, y3, zero, status1, trunc_dbl));/* r = a - (b * q) */emit_insn (gen_m2subrf4_cond (r, cond, a, b, q, zero, status1, trunc_off));/* Q = double (q + (r * y3)) */emit_insn (gen_m2addrf4_cond (q_res, cond, q, r, y3, y, status0, trunc_dbl));/* Conversion back into DFmode */emit_insn (gen_truncrfdf2 (operands[0], q_res));DONE;});; Double precision floating point division (minimum latency algorithm).(define_expand "divdf3_internal_lat"[(set (match_operand:DF 0 "fr_register_operand" "")(div:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "")(match_operand:DF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx q_res = gen_reg_rtx (RFmode);rtx a = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx y = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx q1 = gen_reg_rtx (RFmode);rtx y2 = gen_reg_rtx (RFmode);rtx e2 = gen_reg_rtx (RFmode);rtx q2 = gen_reg_rtx (RFmode);rtx e3 = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx r1 = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_dbl = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Empty conversions to put inputs into RFmode */emit_insn (gen_extenddfrf2 (a, operands[1]));emit_insn (gen_extenddfrf2 (b, operands[2]));/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status0));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* q = a * y */emit_insn (gen_mulrf3_cond (q, cond, a, y, zero, status1, trunc_off));/* e2 = e + (e * e) */emit_insn (gen_m2addrf4_cond (e2, cond, e, e, e, zero, status1, trunc_off));/* e1 = e * e */emit_insn (gen_mulrf3_cond (e1, cond, e, e, zero, status1, trunc_off));/* e3 = e + (e1 * e1) */emit_insn (gen_m2addrf4_cond (e3, cond, e, e1, e1, zero, status1, trunc_off));/* q1 = q + (q * e2) */emit_insn (gen_m2addrf4_cond (q1, cond, q, q, e2, zero, status1, trunc_off));/* y1 = y + (y * e2) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e2, zero, status1, trunc_off));/* q2 = double(q + (q1 * e3)) */emit_insn (gen_m2addrf4_cond (q2, cond, q, q1, e3, zero, status1, trunc_dbl));/* y2 = y + (y1 * e3) */emit_insn (gen_m2addrf4_cond (y2, cond, y, y1, e3, zero, status1, trunc_off));/* r1 = a - (b * q2) */emit_insn (gen_m2subrf4_cond (r1, cond, a, b, q2, zero, status1, trunc_off));/* Q = double (q2 + (r1 * y2)) */emit_insn (gen_m2addrf4_cond (q_res, cond, q2, r1, y2, y, status0, trunc_dbl));/* Conversion back into DFmode */emit_insn (gen_truncrfdf2 (operands[0], q_res));DONE;});; Extended precision floating point division.(define_expand "divxf3"[(set (match_operand:XF 0 "fr_register_operand" "")(div:XF (match_operand:XF 1 "fr_reg_or_fp01_operand" "")(match_operand:XF 2 "fr_reg_or_fp01_operand" "")))]"TARGET_INLINE_FLOAT_DIV"{rtx q_res = gen_reg_rtx (RFmode);rtx a = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx y = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx q1 = gen_reg_rtx (RFmode);rtx y2 = gen_reg_rtx (RFmode);rtx e2 = gen_reg_rtx (RFmode);rtx y3 = gen_reg_rtx (RFmode);rtx e3 = gen_reg_rtx (RFmode);rtx e4 = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx r1 = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Empty conversions to put inputs into RFmode */emit_insn (gen_extendxfrf2 (a, operands[1]));emit_insn (gen_extendxfrf2 (b, operands[2]));/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status0));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* q = a * y */emit_insn (gen_mulrf3_cond (q, cond, a, y, zero, status1, trunc_off));/* e2 = e + (e * e) */emit_insn (gen_m2addrf4_cond (e2, cond, e, e, e, zero, status1, trunc_off));/* e1 = e * e */emit_insn (gen_mulrf3_cond (e1, cond, e, e, zero, status1, trunc_off));/* y1 = y + (y * e2) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e2, zero, status1, trunc_off));/* e3 = e + (e1 * e1) */emit_insn (gen_m2addrf4_cond (e3, cond, e, e1, e1, zero, status1, trunc_off));/* y2 = y + (y1 * e3) */emit_insn (gen_m2addrf4_cond (y2, cond, y, y1, e3, zero, status1, trunc_off));/* r = a - (b * q) */emit_insn (gen_m2subrf4_cond (r, cond, a, b, q, zero, status1, trunc_off));/* e4 = 1 - (b * y2) */emit_insn (gen_m2subrf4_cond (e4, cond, one, b, y2, zero, status1, trunc_off));/* q1 = q + (r * y2) */emit_insn (gen_m2addrf4_cond (q1, cond, q, r, y2, zero, status1, trunc_off));/* y3 = y2 + (y2 * e4) */emit_insn (gen_m2addrf4_cond (y3, cond, y2, y2, e4, zero, status1, trunc_off));/* r1 = a - (b * q1) */emit_insn (gen_m2subrf4_cond (r1, cond, a, b, q1, zero, status1, trunc_off));/* Q = q1 + (r1 * y3) */emit_insn (gen_m2addrf4_cond (q_res, cond, q1, r1, y3, y, status0, trunc_off));/* Conversion back into XFmode */emit_insn (gen_truncrfxf2 (operands[0], q_res));DONE;});; Integer division operations(define_expand "divsi3"[(set (match_operand:SI 0 "register_operand" "")(div:SI (match_operand:SI 1 "general_operand" "")(match_operand:SI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op1_rf, op2_rf, op0_rf, op0_di;op0_rf = gen_reg_rtx (RFmode);op0_di = gen_reg_rtx (DImode);if (! register_operand (operands[1], SImode))operands[1] = force_reg (SImode, operands[1]);op1_rf = gen_reg_rtx (RFmode);expand_float (op1_rf, operands[1], 0);if (! register_operand (operands[2], SImode))operands[2] = force_reg (SImode, operands[2]);op2_rf = gen_reg_rtx (RFmode);expand_float (op2_rf, operands[2], 0);emit_insn (gen_cond_trap (EQ, operands[2], CONST0_RTX (SImode),CONST1_RTX (SImode)));emit_insn (gen_divsi3_internal (op0_rf, op1_rf, op2_rf));emit_insn (gen_fix_truncrfdi2_alts (op0_di, op0_rf, const1_rtx));emit_move_insn (operands[0], gen_lowpart (SImode, op0_di));DONE;})(define_expand "modsi3"[(set (match_operand:SI 0 "register_operand" "")(mod:SI (match_operand:SI 1 "general_operand" "")(match_operand:SI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op2_neg, op1_di, div;div = gen_reg_rtx (SImode);emit_insn (gen_divsi3 (div, operands[1], operands[2]));op2_neg = expand_unop (SImode, neg_optab, operands[2], NULL_RTX, 0);/* This is a trick to get us to reuse the value that we're sure tohave already copied to the FP regs. */op1_di = gen_reg_rtx (DImode);convert_move (op1_di, operands[1], 0);emit_insn (gen_maddsi4 (operands[0], div, op2_neg,gen_lowpart (SImode, op1_di)));DONE;})(define_expand "udivsi3"[(set (match_operand:SI 0 "register_operand" "")(udiv:SI (match_operand:SI 1 "general_operand" "")(match_operand:SI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op1_rf, op2_rf, op0_rf, op0_di;op0_rf = gen_reg_rtx (RFmode);op0_di = gen_reg_rtx (DImode);if (! register_operand (operands[1], SImode))operands[1] = force_reg (SImode, operands[1]);op1_rf = gen_reg_rtx (RFmode);expand_float (op1_rf, operands[1], 1);if (! register_operand (operands[2], SImode))operands[2] = force_reg (SImode, operands[2]);op2_rf = gen_reg_rtx (RFmode);expand_float (op2_rf, operands[2], 1);emit_insn (gen_cond_trap (EQ, operands[2], CONST0_RTX (SImode),CONST1_RTX (SImode)));emit_insn (gen_divsi3_internal (op0_rf, op1_rf, op2_rf));emit_insn (gen_fixuns_truncrfdi2_alts (op0_di, op0_rf, const1_rtx));emit_move_insn (operands[0], gen_lowpart (SImode, op0_di));DONE;})(define_expand "umodsi3"[(set (match_operand:SI 0 "register_operand" "")(umod:SI (match_operand:SI 1 "general_operand" "")(match_operand:SI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op2_neg, op1_di, div;div = gen_reg_rtx (SImode);emit_insn (gen_udivsi3 (div, operands[1], operands[2]));op2_neg = expand_unop (SImode, neg_optab, operands[2], NULL_RTX, 0);/* This is a trick to get us to reuse the value that we're sure tohave already copied to the FP regs. */op1_di = gen_reg_rtx (DImode);convert_move (op1_di, operands[1], 1);emit_insn (gen_maddsi4 (operands[0], div, op2_neg,gen_lowpart (SImode, op1_di)));DONE;})(define_expand "divsi3_internal"[(set (match_operand:RF 0 "fr_register_operand" "")(float:RF (div:SI (match_operand:RF 1 "fr_register_operand" "")(match_operand:RF 2 "fr_register_operand" ""))))]"TARGET_INLINE_INT_DIV"{rtx a = operands[1];rtx b = operands[2];rtx y = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx q1 = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status1 = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);rtx twon34_exp = gen_reg_rtx (DImode);rtx twon34 = gen_reg_rtx (RFmode);/* Load cosntant 2**(-34) */emit_move_insn (twon34_exp, GEN_INT (65501));emit_insn (gen_setf_exp_rf (twon34, twon34_exp));/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status1));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* q = a * y */emit_insn (gen_mulrf3_cond (q, cond, a, y, zero, status1, trunc_off));/* q1 = q + (q * e) */emit_insn (gen_m2addrf4_cond (q1, cond, q, q, e, zero, status1, trunc_off));/* e1 = (2**-34) + (e * e) */emit_insn (gen_m2addrf4_cond (e1, cond, twon34, e, e, zero, status1, trunc_off));/* q2 = q1 + (e1 * q1) */emit_insn (gen_m2addrf4_cond (operands[0], cond, q1, e1, q1, y, status1, trunc_off));DONE;})(define_expand "divdi3"[(set (match_operand:DI 0 "register_operand" "")(div:DI (match_operand:DI 1 "general_operand" "")(match_operand:DI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op1_rf, op2_rf, op0_rf;op0_rf = gen_reg_rtx (RFmode);if (! register_operand (operands[1], DImode))operands[1] = force_reg (DImode, operands[1]);op1_rf = gen_reg_rtx (RFmode);expand_float (op1_rf, operands[1], 0);if (! register_operand (operands[2], DImode))operands[2] = force_reg (DImode, operands[2]);op2_rf = gen_reg_rtx (RFmode);expand_float (op2_rf, operands[2], 0);emit_insn (gen_cond_trap (EQ, operands[2], CONST0_RTX (DImode),CONST1_RTX (DImode)));if (TARGET_INLINE_INT_DIV == INL_MIN_LAT)emit_insn (gen_divdi3_internal_lat (op0_rf, op1_rf, op2_rf));elseemit_insn (gen_divdi3_internal_thr (op0_rf, op1_rf, op2_rf));emit_insn (gen_fix_truncrfdi2_alts (operands[0], op0_rf, const1_rtx));DONE;})(define_expand "moddi3"[(set (match_operand:DI 0 "register_operand" "")(mod:SI (match_operand:DI 1 "general_operand" "")(match_operand:DI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op2_neg, div;div = gen_reg_rtx (DImode);emit_insn (gen_divdi3 (div, operands[1], operands[2]));op2_neg = expand_unop (DImode, neg_optab, operands[2], NULL_RTX, 0);emit_insn (gen_madddi4 (operands[0], div, op2_neg, operands[1]));DONE;})(define_expand "udivdi3"[(set (match_operand:DI 0 "register_operand" "")(udiv:DI (match_operand:DI 1 "general_operand" "")(match_operand:DI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op1_rf, op2_rf, op0_rf;op0_rf = gen_reg_rtx (RFmode);if (! register_operand (operands[1], DImode))operands[1] = force_reg (DImode, operands[1]);op1_rf = gen_reg_rtx (RFmode);expand_float (op1_rf, operands[1], 1);if (! register_operand (operands[2], DImode))operands[2] = force_reg (DImode, operands[2]);op2_rf = gen_reg_rtx (RFmode);expand_float (op2_rf, operands[2], 1);emit_insn (gen_cond_trap (EQ, operands[2], CONST0_RTX (DImode),CONST1_RTX (DImode)));if (TARGET_INLINE_INT_DIV == INL_MIN_LAT)emit_insn (gen_divdi3_internal_lat (op0_rf, op1_rf, op2_rf));elseemit_insn (gen_divdi3_internal_thr (op0_rf, op1_rf, op2_rf));emit_insn (gen_fixuns_truncrfdi2_alts (operands[0], op0_rf, const1_rtx));DONE;})(define_expand "umoddi3"[(set (match_operand:DI 0 "register_operand" "")(umod:DI (match_operand:DI 1 "general_operand" "")(match_operand:DI 2 "general_operand" "")))]"TARGET_INLINE_INT_DIV"{rtx op2_neg, div;div = gen_reg_rtx (DImode);emit_insn (gen_udivdi3 (div, operands[1], operands[2]));op2_neg = expand_unop (DImode, neg_optab, operands[2], NULL_RTX, 0);emit_insn (gen_madddi4 (operands[0], div, op2_neg, operands[1]));DONE;})(define_expand "divdi3_internal_lat"[(set (match_operand:RF 0 "fr_register_operand" "")(float:RF (div:DI (match_operand:RF 1 "fr_register_operand" "")(match_operand:RF 2 "fr_register_operand" ""))))]"TARGET_INLINE_INT_DIV"{rtx a = operands[1];rtx b = operands[2];rtx y = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx y2 = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx q = gen_reg_rtx (RFmode);rtx q1 = gen_reg_rtx (RFmode);rtx q2 = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status1 = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status1));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* q = a * y */emit_insn (gen_mulrf3_cond (q, cond, a, y, zero, status1, trunc_off));/* q1 = q + (q * e) */emit_insn (gen_m2addrf4_cond (q1, cond, q, q, e, zero, status1, trunc_off));/* e1 = e * e */emit_insn (gen_mulrf3_cond (e1, cond, e, e, zero, status1, trunc_off));/* q2 = q1 + (e1 * q1) */emit_insn (gen_m2addrf4_cond (q2, cond, q1, e1, q1, zero, status1, trunc_off));/* y1 = y + (y * e) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e, zero, status1, trunc_off));/* r = a - (b * q2) */emit_insn (gen_m2subrf4_cond (r, cond, a, b, q2, zero, status1, trunc_off));/* y2 = y1 + (y1 * e1) */emit_insn (gen_m2addrf4_cond (y2, cond, y1, y1, e1, zero, status1, trunc_off));/* q3 = q2 + (r * y2) */emit_insn (gen_m2addrf4_cond (operands[0], cond, q2, r, y2, y, status1, trunc_off));DONE;})(define_expand "divdi3_internal_thr"[(set (match_operand:RF 0 "fr_register_operand" "")(float:RF (div:DI (match_operand:RF 1 "fr_register_operand" "")(match_operand:RF 2 "fr_register_operand" ""))))]"TARGET_INLINE_INT_DIV"{rtx a = operands[1];rtx b = operands[2];rtx y = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx y2 = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx q2 = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx status1 = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* y = 1 / b */emit_insn (gen_recip_approx_rf (y, a, b, cond, status1));/* e = 1 - (b * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, b, y, zero, status1, trunc_off));/* y1 = y + (y * e) */emit_insn (gen_m2addrf4_cond (y1, cond, y, y, e, zero, status1, trunc_off));/* e1 = e * e */emit_insn (gen_mulrf3_cond (e1, cond, e, e, zero, status1, trunc_off));/* y2 = y1 + (y1 * e1) */emit_insn (gen_m2addrf4_cond (y2, cond, y1, y1, e1, zero, status1, trunc_off));/* q2 = y2 * a */emit_insn (gen_mulrf3_cond (q2, cond, y2, a, zero, status1, trunc_off));/* r = a - (b * q2) */emit_insn (gen_m2subrf4_cond (r, cond, a, b, q2, zero, status1, trunc_off));/* q3 = q2 + (r * y2) */emit_insn (gen_m2addrf4_cond (operands[0], cond, q2, r, y2, y, status1, trunc_off));DONE;});; SQRT operations(define_insn "sqrt_approx_rf"[(set (match_operand:RF 0 "fr_register_operand" "=f")(unspec:RF [(match_operand:RF 1 "fr_reg_or_fp01_operand" "fG")]UNSPEC_FR_SQRT_RECIP_APPROX_RES))(set (match_operand:BI 2 "register_operand" "=c")(unspec:BI [(match_dup 1)] UNSPEC_FR_SQRT_RECIP_APPROX))(use (match_operand:SI 3 "const_int_operand" ""))]"""frsqrta.s%3 %0, %2 = %F1"[(set_attr "itanium_class" "fmisc")(set_attr "predicable" "no")])(define_expand "sqrtsf2"[(set (match_operand:SF 0 "fr_register_operand" "=&f")(sqrt:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "fG")))]"TARGET_INLINE_SQRT"{rtx insn;if (TARGET_INLINE_SQRT == INL_MIN_LAT)insn = gen_sqrtsf2_internal_lat (operands[0], operands[1]);elseinsn = gen_sqrtsf2_internal_thr (operands[0], operands[1]);emit_insn (insn);DONE;})(define_expand "sqrtsf2_internal_thr"[(set (match_operand:SF 0 "fr_register_operand" "")(sqrt:SF (match_operand:SF 1 "fr_register_operand" "")))]"TARGET_INLINE_SQRT"{rtx y = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx g = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx s = gen_reg_rtx (RFmode);rtx f = gen_reg_rtx (RFmode);rtx y1 = gen_reg_rtx (RFmode);rtx g1 = gen_reg_rtx (RFmode);rtx h = gen_reg_rtx (RFmode);rtx d = gen_reg_rtx (RFmode);rtx g2 = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx c1 = ia64_dconst_0_5();rtx c2 = ia64_dconst_0_375();rtx reg_df_c1 = gen_reg_rtx (DFmode);rtx reg_df_c2 = gen_reg_rtx (DFmode);rtx reg_rf_c1 = gen_reg_rtx (RFmode);rtx reg_rf_c2 = gen_reg_rtx (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_sgl = CONST0_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Put needed constants into registers. */emit_insn (gen_movdf (reg_df_c1, c1));emit_insn (gen_movdf (reg_df_c2, c2));emit_insn (gen_extenddfrf2 (reg_rf_c1, reg_df_c1));emit_insn (gen_extenddfrf2 (reg_rf_c2, reg_df_c2));/* Empty conversion to put input into RFmode. */emit_insn (gen_extendsfrf2 (b, operands[1]));/* y = sqrt (1 / b) */emit_insn (gen_sqrt_approx_rf (y, b, cond, status0));/* g = b * y */emit_insn (gen_mulrf3_cond (g, cond, b, y, zero, status1, trunc_off));/* e = 1 - (g * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, g, y, zero, status1, trunc_off));/* s = 0.5 + (0.375 * e) */emit_insn (gen_m2addrf4_cond (s, cond, reg_rf_c1, reg_rf_c2, e, zero, status1, trunc_off));/* f = y * e */emit_insn (gen_mulrf3_cond (f, cond, y, e, zero, status1, trunc_off));/* y1 = y + (f * s) */emit_insn (gen_m2addrf4_cond (y1, cond, y, f, s, zero, status1, trunc_off));/* g1 = single (b * y1) */emit_insn (gen_mulrf3_cond (g1, cond, b, y1, zero, status1, trunc_sgl));/* h = 0.5 * y1 */emit_insn (gen_mulrf3_cond (h, cond, reg_rf_c1, y1, zero, status1, trunc_off));/* d = b - g1 * g1 */emit_insn (gen_m2subrf4_cond (d, cond, b, g1, g1, zero, status1, trunc_off));/* g2 = single(g1 + (d * h)) */emit_insn (gen_m2addrf4_cond (g2, cond, g1, d, h, y, status0, trunc_sgl));/* Conversion back into SFmode. */emit_insn (gen_truncrfsf2 (operands[0], g2));DONE;})(define_expand "sqrtsf2_internal_lat"[(set (match_operand:SF 0 "fr_register_operand" "")(sqrt:SF (match_operand:SF 1 "fr_register_operand" "")))]"TARGET_INLINE_SQRT"{rtx y = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx g = gen_reg_rtx (RFmode);rtx g1 = gen_reg_rtx (RFmode);rtx g2 = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx s = gen_reg_rtx (RFmode);rtx f = gen_reg_rtx (RFmode);rtx f1 = gen_reg_rtx (RFmode);rtx h = gen_reg_rtx (RFmode);rtx h1 = gen_reg_rtx (RFmode);rtx d = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx one = CONST1_RTX (RFmode);rtx c1 = ia64_dconst_0_5();rtx c2 = ia64_dconst_0_375();rtx reg_df_c1 = gen_reg_rtx (DFmode);rtx reg_df_c2 = gen_reg_rtx (DFmode);rtx reg_rf_c1 = gen_reg_rtx (RFmode);rtx reg_rf_c2 = gen_reg_rtx (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_sgl = CONST0_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Put needed constants into registers. */emit_insn (gen_movdf (reg_df_c1, c1));emit_insn (gen_movdf (reg_df_c2, c2));emit_insn (gen_extenddfrf2 (reg_rf_c1, reg_df_c1));emit_insn (gen_extenddfrf2 (reg_rf_c2, reg_df_c2));/* Empty conversion to put input into RFmode. */emit_insn (gen_extendsfrf2 (b, operands[1]));/* y = sqrt (1 / b) */emit_insn (gen_sqrt_approx_rf (y, b, cond, status0));/* g = b * y */emit_insn (gen_mulrf3_cond (g, cond, b, y, zero, status1, trunc_off));/* e = 1 - (g * y) */emit_insn (gen_m2subrf4_cond (e, cond, one, g, y, zero, status1, trunc_off));/* h = 0.5 * y */emit_insn (gen_mulrf3_cond (h, cond, reg_rf_c1, y, zero, status1, trunc_off));/* s = 0.5 + (0.375 * e) */emit_insn (gen_m2addrf4_cond (s, cond, reg_rf_c1, reg_rf_c2, e, zero, status1, trunc_off));/* f = e * g */emit_insn (gen_mulrf3_cond (f, cond, e, g, zero, status1, trunc_off));/* g1 = single (g + (f * s)) */emit_insn (gen_m2addrf4_cond (g1, cond, g, f, s, zero, status1, trunc_sgl));/* f1 = e * h */emit_insn (gen_mulrf3_cond (f1, cond, e, h, zero, status1, trunc_off));/* d = b - g1 * g1 */emit_insn (gen_m2subrf4_cond (d, cond, b, g1, g1, zero, status1, trunc_off));/* h1 = h + (f1 * s) */emit_insn (gen_m2addrf4_cond (h1, cond, h, f1, s, zero, status1, trunc_off));/* g2 = single(g1 + (d * h1)) */emit_insn (gen_m2addrf4_cond (g2, cond, g1, d, h1, y, status0, trunc_sgl));/* Conversion back into SFmode. */emit_insn (gen_truncrfsf2 (operands[0], g2));DONE;})(define_expand "sqrtdf2"[(set (match_operand:DF 0 "fr_register_operand" "=&f")(sqrt:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")))]"TARGET_INLINE_SQRT"{rtx insn;#if 0if (TARGET_INLINE_SQRT == INL_MIN_LAT)insn = gen_sqrtdf2_internal_lat (operands[0], operands[1]);else#endifinsn = gen_sqrtdf2_internal_thr (operands[0], operands[1]);emit_insn (insn);DONE;})(define_expand "sqrtdf2_internal_thr"[(set (match_operand:DF 0 "fr_register_operand" "")(sqrt:DF (match_operand:DF 1 "fr_register_operand" "")))]"TARGET_INLINE_SQRT"{rtx y = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx g = gen_reg_rtx (RFmode);rtx g1 = gen_reg_rtx (RFmode);rtx g2 = gen_reg_rtx (RFmode);rtx g3 = gen_reg_rtx (RFmode);rtx g4 = gen_reg_rtx (RFmode);rtx r = gen_reg_rtx (RFmode);rtx r1 = gen_reg_rtx (RFmode);rtx h = gen_reg_rtx (RFmode);rtx h1 = gen_reg_rtx (RFmode);rtx h2 = gen_reg_rtx (RFmode);rtx d = gen_reg_rtx (RFmode);rtx d1 = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx c1 = ia64_dconst_0_5();rtx reg_df_c1 = gen_reg_rtx (DFmode);rtx reg_rf_c1 = gen_reg_rtx (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_dbl = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Put needed constants into registers. */emit_insn (gen_movdf (reg_df_c1, c1));emit_insn (gen_extenddfrf2 (reg_rf_c1, reg_df_c1));/* Empty conversion to put input into RFmode. */emit_insn (gen_extenddfrf2 (b, operands[1]));/* y = sqrt (1 / b) */emit_insn (gen_sqrt_approx_rf (y, b, cond, status0));/* g = b * y */emit_insn (gen_mulrf3_cond (g, cond, b, y, zero, status1, trunc_off));/* h = 0.5 * y */emit_insn (gen_mulrf3_cond (h, cond, reg_rf_c1, y, zero, status1, trunc_off));/* r = 0.5 - (g * h) */emit_insn (gen_m2subrf4_cond (r, cond, reg_rf_c1, g, h, zero, status1, trunc_off));/* g1 = g + (g * r) */emit_insn (gen_m2addrf4_cond (g1, cond, g, g, r, zero, status1, trunc_off));/* h1 = h + (h * r) */emit_insn (gen_m2addrf4_cond (h1, cond, h, h, r, zero, status1, trunc_off));/* r1 = 0.5 - (g1 * h1) */emit_insn (gen_m2subrf4_cond (r1, cond, reg_rf_c1, g1, h1, zero, status1, trunc_off));/* g2 = g1 + (g1 * r1) */emit_insn (gen_m2addrf4_cond (g2, cond, g1, g1, r1, zero, status1, trunc_off));/* h2 = h1 + (h1 * r1) */emit_insn (gen_m2addrf4_cond (h2, cond, h1, h1, r1, zero, status1, trunc_off));/* d = b - (g2 * g2) */emit_insn (gen_m2subrf4_cond (d, cond, b, g2, g2, zero, status1, trunc_off));/* g3 = g2 + (d * h2) */emit_insn (gen_m2addrf4_cond (g3, cond, g2, d, h2, zero, status1, trunc_off));/* d1 = b - (g3 * g3) */emit_insn (gen_m2subrf4_cond (d1, cond, b, g3, g3, zero, status1, trunc_off));/* g4 = g3 + (d1 * h2) */emit_insn (gen_m2addrf4_cond (g4, cond, g3, d1, h2, y, status1, trunc_dbl));/* Conversion back into SFmode. */emit_insn (gen_truncrfdf2 (operands[0], g4));DONE;})(define_expand "sqrtxf2"[(set (match_operand:XF 0 "fr_register_operand" "")(sqrt:XF (match_operand:XF 1 "fr_register_operand" "")))]"TARGET_INLINE_SQRT"{rtx y = gen_reg_rtx (RFmode);rtx b = gen_reg_rtx (RFmode);rtx g = gen_reg_rtx (RFmode);rtx g1 = gen_reg_rtx (RFmode);rtx g2 = gen_reg_rtx (RFmode);rtx g3 = gen_reg_rtx (RFmode);rtx g4 = gen_reg_rtx (RFmode);rtx e = gen_reg_rtx (RFmode);rtx e1 = gen_reg_rtx (RFmode);rtx e2 = gen_reg_rtx (RFmode);rtx h = gen_reg_rtx (RFmode);rtx h1 = gen_reg_rtx (RFmode);rtx h2 = gen_reg_rtx (RFmode);rtx h3 = gen_reg_rtx (RFmode);rtx d = gen_reg_rtx (RFmode);rtx d1 = gen_reg_rtx (RFmode);rtx cond = gen_reg_rtx (BImode);rtx zero = CONST0_RTX (RFmode);rtx c1 = ia64_dconst_0_5();rtx reg_df_c1 = gen_reg_rtx (DFmode);rtx reg_rf_c1 = gen_reg_rtx (RFmode);rtx status0 = CONST0_RTX (SImode);rtx status1 = CONST1_RTX (SImode);rtx trunc_off = CONST2_RTX (SImode);/* Put needed constants into registers. */emit_insn (gen_movdf (reg_df_c1, c1));emit_insn (gen_extenddfrf2 (reg_rf_c1, reg_df_c1));/* Empty conversion to put input into RFmode. */emit_insn (gen_extendxfrf2 (b, operands[1]));/* y = sqrt (1 / b) */emit_insn (gen_sqrt_approx_rf (y, b, cond, status0));/* g = b * y */emit_insn (gen_mulrf3_cond (g, cond, b, y, zero, status1, trunc_off));/* h = 0.5 * y */emit_insn (gen_mulrf3_cond (h, cond, reg_rf_c1, y, zero, status1, trunc_off));/* e = 0.5 - (g * h) */emit_insn (gen_m2subrf4_cond (e, cond, reg_rf_c1, g, h, zero, status1, trunc_off));/* g1 = g + (g * e) */emit_insn (gen_m2addrf4_cond (g1, cond, g, g, e, zero, status1, trunc_off));/* h1 = h + (h * e) */emit_insn (gen_m2addrf4_cond (h1, cond, h, h, e, zero, status1, trunc_off));/* e1 = 0.5 - (g1 * h1) */emit_insn (gen_m2subrf4_cond (e1, cond, reg_rf_c1, g1, h1, zero, status1, trunc_off));/* g2 = g1 + (g1 * e1) */emit_insn (gen_m2addrf4_cond (g2, cond, g1, g1, e1, zero, status1, trunc_off));/* h2 = h1 + (h1 * e1) */emit_insn (gen_m2addrf4_cond (h2, cond, h1, h1, e1, zero, status1, trunc_off));/* d = b - (g2 * g2) */emit_insn (gen_m2subrf4_cond (d, cond, b, g2, g2, zero, status1, trunc_off));/* e2 = 0.5 - (g2 * h2) */emit_insn (gen_m2subrf4_cond (e2, cond, reg_rf_c1, g2, h2, zero, status1, trunc_off));/* g3 = g2 + (d * h2) */emit_insn (gen_m2addrf4_cond (g3, cond, g2, d, h2, zero, status1, trunc_off));/* h3 = h2 + (e2 * h2) */emit_insn (gen_m2addrf4_cond (h3, cond, h2, e2, h2, zero, status1, trunc_off));/* d1 = b - (g3 * g3) */emit_insn (gen_m2subrf4_cond (d1, cond, b, g3, g3, zero, status1, trunc_off));/* g4 = g3 + (d1 * h3) */emit_insn (gen_m2addrf4_cond (g4, cond, g3, d1, h3, y, status1, trunc_off));/* Conversion back into SFmode. */emit_insn (gen_truncrfxf2 (operands[0], g4));DONE;})
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