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;; GCC machine description for Tensilica's Xtensa architecture.;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010;; Free Software Foundation, Inc.;; Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.;; 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/>.(define_constants [(A0_REG 0)(A1_REG 1)(A7_REG 7)(A8_REG 8)(UNSPEC_NOP 2)(UNSPEC_PLT 3)(UNSPEC_RET_ADDR 4)(UNSPEC_TPOFF 5)(UNSPEC_DTPOFF 6)(UNSPEC_TLS_FUNC 7)(UNSPEC_TLS_ARG 8)(UNSPEC_TLS_CALL 9)(UNSPEC_TP 10)(UNSPEC_MEMW 11)(UNSPECV_SET_FP 1)(UNSPECV_ENTRY 2)(UNSPECV_S32RI 4)(UNSPECV_S32C1I 5)(UNSPECV_EH_RETURN 6)(UNSPECV_SET_TP 7)]);; This code iterator allows signed and unsigned widening multiplications;; to use the same template.(define_code_iterator any_extend [sign_extend zero_extend]);; <u> expands to an empty string when doing a signed operation and;; "u" when doing an unsigned operation.(define_code_attr u [(sign_extend "") (zero_extend "u")]);; <su> is like <u>, but the signed form expands to "s" rather than "".(define_code_attr su [(sign_extend "s") (zero_extend "u")]);; This code iterator allows four integer min/max operations to be;; generated from one template.(define_code_iterator any_minmax [smin umin smax umax]);; <minmax> expands to the opcode name for any_minmax operations.(define_code_attr minmax [(smin "min") (umin "minu")(smax "max") (umax "maxu")]);; This code iterator is for floating-point comparisons.(define_code_iterator any_scc_sf [eq lt le uneq unlt unle unordered])(define_code_attr scc_sf [(eq "oeq") (lt "olt") (le "ole")(uneq "ueq") (unlt "ult") (unle "ule")(unordered "un")]);; This iterator and attribute allow to combine most atomic operations.(define_code_iterator ATOMIC [and ior xor plus minus mult])(define_code_attr atomic [(and "and") (ior "ior") (xor "xor")(plus "add") (minus "sub") (mult "nand")]);; This mode iterator allows the HI and QI patterns to be defined from;; the same template.(define_mode_iterator HQI [HI QI]);; Attributes.(define_attr "type""unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fdiv,fsqrt,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry"(const_string "unknown"))(define_attr "mode""unknown,none,QI,HI,SI,DI,SF,DF,BL"(const_string "unknown"))(define_attr "length" "" (const_int 1));; Describe a user's asm statement.(define_asm_attributes[(set_attr "type" "multi")]);; Pipeline model.;; The Xtensa basically has simple 5-stage RISC pipeline.;; Most instructions complete in 1 cycle, and it is OK to assume that;; everything is fully pipelined. The exceptions have special insn;; reservations in the pipeline description below. The Xtensa can;; issue one instruction per cycle, so defining CPU units is unnecessary.(define_insn_reservation "xtensa_any_insn" 1(eq_attr "type" "!load,fload,rsr,mul16,mul32,fmadd,fconv")"nothing")(define_insn_reservation "xtensa_memory" 2(eq_attr "type" "load,fload")"nothing")(define_insn_reservation "xtensa_sreg" 2(eq_attr "type" "rsr")"nothing")(define_insn_reservation "xtensa_mul16" 2(eq_attr "type" "mul16")"nothing")(define_insn_reservation "xtensa_mul32" 2(eq_attr "type" "mul32")"nothing")(define_insn_reservation "xtensa_fmadd" 4(eq_attr "type" "fmadd")"nothing")(define_insn_reservation "xtensa_fconv" 2(eq_attr "type" "fconv")"nothing");; Include predicates and constraints.(include "predicates.md")(include "constraints.md");; Addition.(define_insn "addsi3"[(set (match_operand:SI 0 "register_operand" "=D,D,a,a,a")(plus:SI (match_operand:SI 1 "register_operand" "%d,d,r,r,r")(match_operand:SI 2 "add_operand" "d,O,r,J,N")))]"""@add.n\t%0, %1, %2addi.n\t%0, %1, %d2add\t%0, %1, %2addi\t%0, %1, %d2addmi\t%0, %1, %x2"[(set_attr "type" "arith,arith,arith,arith,arith")(set_attr "mode" "SI")(set_attr "length" "2,2,3,3,3")])(define_insn "*addx"[(set (match_operand:SI 0 "register_operand" "=a")(plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 3 "addsubx_operand" "i"))(match_operand:SI 2 "register_operand" "r")))]"TARGET_ADDX""addx%3\t%0, %1, %2"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "addsf3"[(set (match_operand:SF 0 "register_operand" "=f")(plus:SF (match_operand:SF 1 "register_operand" "%f")(match_operand:SF 2 "register_operand" "f")))]"TARGET_HARD_FLOAT""add.s\t%0, %1, %2"[(set_attr "type" "fmadd")(set_attr "mode" "SF")(set_attr "length" "3")]);; Subtraction.(define_insn "subsi3"[(set (match_operand:SI 0 "register_operand" "=a")(minus:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "register_operand" "r")))]"""sub\t%0, %1, %2"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "*subx"[(set (match_operand:SI 0 "register_operand" "=a")(minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 3 "addsubx_operand" "i"))(match_operand:SI 2 "register_operand" "r")))]"TARGET_ADDX""subx%3\t%0, %1, %2"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "subsf3"[(set (match_operand:SF 0 "register_operand" "=f")(minus:SF (match_operand:SF 1 "register_operand" "f")(match_operand:SF 2 "register_operand" "f")))]"TARGET_HARD_FLOAT""sub.s\t%0, %1, %2"[(set_attr "type" "fmadd")(set_attr "mode" "SF")(set_attr "length" "3")]);; Multiplication.(define_expand "<u>mulsidi3"[(set (match_operand:DI 0 "register_operand")(mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))(any_extend:DI (match_operand:SI 2 "register_operand"))))]"TARGET_MUL32_HIGH"{rtx temp = gen_reg_rtx (SImode);emit_insn (gen_mulsi3 (temp, operands[1], operands[2]));emit_insn (gen_<u>mulsi3_highpart (gen_highpart (SImode, operands[0]),operands[1], operands[2]));emit_insn (gen_movsi (gen_lowpart (SImode, operands[0]), temp));DONE;})(define_insn "<u>mulsi3_highpart"[(set (match_operand:SI 0 "register_operand" "=a")(truncate:SI(lshiftrt:DI(mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "%r"))(any_extend:DI (match_operand:SI 2 "register_operand" "r")))(const_int 32))))]"TARGET_MUL32_HIGH""mul<su>h\t%0, %1, %2"[(set_attr "type" "mul32")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "mulsi3"[(set (match_operand:SI 0 "register_operand" "=a")(mult:SI (match_operand:SI 1 "register_operand" "%r")(match_operand:SI 2 "register_operand" "r")))]"TARGET_MUL32""mull\t%0, %1, %2"[(set_attr "type" "mul32")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "mulhisi3"[(set (match_operand:SI 0 "register_operand" "=C,A")(mult:SI (sign_extend:SI(match_operand:HI 1 "register_operand" "%r,r"))(sign_extend:SI(match_operand:HI 2 "register_operand" "r,r"))))]"TARGET_MUL16 || TARGET_MAC16""@mul16s\t%0, %1, %2mul.aa.ll\t%1, %2"[(set_attr "type" "mul16,mac16")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_insn "umulhisi3"[(set (match_operand:SI 0 "register_operand" "=C,A")(mult:SI (zero_extend:SI(match_operand:HI 1 "register_operand" "%r,r"))(zero_extend:SI(match_operand:HI 2 "register_operand" "r,r"))))]"TARGET_MUL16 || TARGET_MAC16""@mul16u\t%0, %1, %2umul.aa.ll\t%1, %2"[(set_attr "type" "mul16,mac16")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_insn "muladdhisi"[(set (match_operand:SI 0 "register_operand" "=A")(plus:SI (mult:SI (sign_extend:SI(match_operand:HI 1 "register_operand" "%r"))(sign_extend:SI(match_operand:HI 2 "register_operand" "r")))(match_operand:SI 3 "register_operand" "0")))]"TARGET_MAC16""mula.aa.ll\t%1, %2"[(set_attr "type" "mac16")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "mulsubhisi"[(set (match_operand:SI 0 "register_operand" "=A")(minus:SI (match_operand:SI 1 "register_operand" "0")(mult:SI (sign_extend:SI(match_operand:HI 2 "register_operand" "%r"))(sign_extend:SI(match_operand:HI 3 "register_operand" "r")))))]"TARGET_MAC16""muls.aa.ll\t%2, %3"[(set_attr "type" "mac16")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "mulsf3"[(set (match_operand:SF 0 "register_operand" "=f")(mult:SF (match_operand:SF 1 "register_operand" "%f")(match_operand:SF 2 "register_operand" "f")))]"TARGET_HARD_FLOAT""mul.s\t%0, %1, %2"[(set_attr "type" "fmadd")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "fmasf4"[(set (match_operand:SF 0 "register_operand" "=f")(fma:SF (match_operand:SF 1 "register_operand" "f")(match_operand:SF 2 "register_operand" "f")(match_operand:SF 3 "register_operand" "0")))]"TARGET_HARD_FLOAT""madd.s\t%0, %1, %2"[(set_attr "type" "fmadd")(set_attr "mode" "SF")(set_attr "length" "3")]);; Note that (C - A*B) = (-A*B + C)(define_insn "fnmasf4"[(set (match_operand:SF 0 "register_operand" "=f")(fma:SF (neg:SF (match_operand:SF 1 "register_operand" "f"))(match_operand:SF 2 "register_operand" "f")(match_operand:SF 3 "register_operand" "0")))]"TARGET_HARD_FLOAT""msub.s\t%0, %1, %2"[(set_attr "type" "fmadd")(set_attr "mode" "SF")(set_attr "length" "3")]);; Division.(define_insn "divsi3"[(set (match_operand:SI 0 "register_operand" "=a")(div:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "register_operand" "r")))]"TARGET_DIV32""quos\t%0, %1, %2"[(set_attr "type" "div32")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "udivsi3"[(set (match_operand:SI 0 "register_operand" "=a")(udiv:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "register_operand" "r")))]"TARGET_DIV32""quou\t%0, %1, %2"[(set_attr "type" "div32")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "divsf3"[(set (match_operand:SF 0 "register_operand" "=f")(div:SF (match_operand:SF 1 "register_operand" "f")(match_operand:SF 2 "register_operand" "f")))]"TARGET_HARD_FLOAT_DIV""div.s\t%0, %1, %2"[(set_attr "type" "fdiv")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "*recipsf2"[(set (match_operand:SF 0 "register_operand" "=f")(div:SF (match_operand:SF 1 "const_float_1_operand" "")(match_operand:SF 2 "register_operand" "f")))]"TARGET_HARD_FLOAT_RECIP && flag_unsafe_math_optimizations""recip.s\t%0, %2"[(set_attr "type" "fdiv")(set_attr "mode" "SF")(set_attr "length" "3")]);; Remainders.(define_insn "modsi3"[(set (match_operand:SI 0 "register_operand" "=a")(mod:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "register_operand" "r")))]"TARGET_DIV32""rems\t%0, %1, %2"[(set_attr "type" "div32")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "umodsi3"[(set (match_operand:SI 0 "register_operand" "=a")(umod:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "register_operand" "r")))]"TARGET_DIV32""remu\t%0, %1, %2"[(set_attr "type" "div32")(set_attr "mode" "SI")(set_attr "length" "3")]);; Square roots.(define_insn "sqrtsf2"[(set (match_operand:SF 0 "register_operand" "=f")(sqrt:SF (match_operand:SF 1 "register_operand" "f")))]"TARGET_HARD_FLOAT_SQRT""sqrt.s\t%0, %1"[(set_attr "type" "fsqrt")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "*rsqrtsf2"[(set (match_operand:SF 0 "register_operand" "=f")(div:SF (match_operand:SF 1 "const_float_1_operand" "")(sqrt:SF (match_operand:SF 2 "register_operand" "f"))))]"TARGET_HARD_FLOAT_RSQRT && flag_unsafe_math_optimizations""rsqrt.s\t%0, %2"[(set_attr "type" "fsqrt")(set_attr "mode" "SF")(set_attr "length" "3")]);; Absolute value.(define_insn "abssi2"[(set (match_operand:SI 0 "register_operand" "=a")(abs:SI (match_operand:SI 1 "register_operand" "r")))]"TARGET_ABS""abs\t%0, %1"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "abssf2"[(set (match_operand:SF 0 "register_operand" "=f")(abs:SF (match_operand:SF 1 "register_operand" "f")))]"TARGET_HARD_FLOAT""abs.s\t%0, %1"[(set_attr "type" "farith")(set_attr "mode" "SF")(set_attr "length" "3")]);; Min and max.(define_insn "<code>si3"[(set (match_operand:SI 0 "register_operand" "=a")(any_minmax:SI (match_operand:SI 1 "register_operand" "%r")(match_operand:SI 2 "register_operand" "r")))]"TARGET_MINMAX""<minmax>\t%0, %1, %2"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")]);; Count leading/trailing zeros and find first bit.(define_insn "clzsi2"[(set (match_operand:SI 0 "register_operand" "=a")(clz:SI (match_operand:SI 1 "register_operand" "r")))]"TARGET_NSA""nsau\t%0, %1"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_expand "ctzsi2"[(set (match_operand:SI 0 "register_operand" "")(ctz:SI (match_operand:SI 1 "register_operand" "")))]"TARGET_NSA"{rtx temp = gen_reg_rtx (SImode);emit_insn (gen_negsi2 (temp, operands[1]));emit_insn (gen_andsi3 (temp, temp, operands[1]));emit_insn (gen_clzsi2 (temp, temp));emit_insn (gen_negsi2 (temp, temp));emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (31)));DONE;})(define_expand "ffssi2"[(set (match_operand:SI 0 "register_operand" "")(ffs:SI (match_operand:SI 1 "register_operand" "")))]"TARGET_NSA"{rtx temp = gen_reg_rtx (SImode);emit_insn (gen_negsi2 (temp, operands[1]));emit_insn (gen_andsi3 (temp, temp, operands[1]));emit_insn (gen_clzsi2 (temp, temp));emit_insn (gen_negsi2 (temp, temp));emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (32)));DONE;});; Negation and one's complement.(define_insn "negsi2"[(set (match_operand:SI 0 "register_operand" "=a")(neg:SI (match_operand:SI 1 "register_operand" "r")))]"""neg\t%0, %1"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_expand "one_cmplsi2"[(set (match_operand:SI 0 "register_operand" "")(not:SI (match_operand:SI 1 "register_operand" "")))]""{rtx temp = gen_reg_rtx (SImode);emit_insn (gen_movsi (temp, constm1_rtx));emit_insn (gen_xorsi3 (operands[0], temp, operands[1]));DONE;})(define_insn "negsf2"[(set (match_operand:SF 0 "register_operand" "=f")(neg:SF (match_operand:SF 1 "register_operand" "f")))]"TARGET_HARD_FLOAT""neg.s\t%0, %1"[(set_attr "type" "farith")(set_attr "mode" "SF")(set_attr "length" "3")]);; Logical instructions.(define_insn "andsi3"[(set (match_operand:SI 0 "register_operand" "=a,a")(and:SI (match_operand:SI 1 "register_operand" "%r,r")(match_operand:SI 2 "mask_operand" "P,r")))]"""@extui\t%0, %1, 0, %K2and\t%0, %1, %2"[(set_attr "type" "arith,arith")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_insn "iorsi3"[(set (match_operand:SI 0 "register_operand" "=a")(ior:SI (match_operand:SI 1 "register_operand" "%r")(match_operand:SI 2 "register_operand" "r")))]"""or\t%0, %1, %2"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "xorsi3"[(set (match_operand:SI 0 "register_operand" "=a")(xor:SI (match_operand:SI 1 "register_operand" "%r")(match_operand:SI 2 "register_operand" "r")))]"""xor\t%0, %1, %2"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")]);; Zero-extend instructions.(define_insn "zero_extendhisi2"[(set (match_operand:SI 0 "register_operand" "=a,a")(zero_extend:SI (match_operand:HI 1 "nonimmed_operand" "r,U")))]"""@extui\t%0, %1, 0, 16l16ui\t%0, %1"[(set_attr "type" "arith,load")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_insn "zero_extendqisi2"[(set (match_operand:SI 0 "register_operand" "=a,a")(zero_extend:SI (match_operand:QI 1 "nonimmed_operand" "r,U")))]"""@extui\t%0, %1, 0, 8l8ui\t%0, %1"[(set_attr "type" "arith,load")(set_attr "mode" "SI")(set_attr "length" "3,3")]);; Sign-extend instructions.(define_expand "extendhisi2"[(set (match_operand:SI 0 "register_operand" "")(sign_extend:SI (match_operand:HI 1 "register_operand" "")))]""{if (sext_operand (operands[1], HImode))emit_insn (gen_extendhisi2_internal (operands[0], operands[1]));elsextensa_extend_reg (operands[0], operands[1]);DONE;})(define_insn "extendhisi2_internal"[(set (match_operand:SI 0 "register_operand" "=B,a")(sign_extend:SI (match_operand:HI 1 "sext_operand" "r,U")))]"""@sext\t%0, %1, 15l16si\t%0, %1"[(set_attr "type" "arith,load")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_expand "extendqisi2"[(set (match_operand:SI 0 "register_operand" "")(sign_extend:SI (match_operand:QI 1 "register_operand" "")))]""{if (TARGET_SEXT)emit_insn (gen_extendqisi2_internal (operands[0], operands[1]));elsextensa_extend_reg (operands[0], operands[1]);DONE;})(define_insn "extendqisi2_internal"[(set (match_operand:SI 0 "register_operand" "=B")(sign_extend:SI (match_operand:QI 1 "register_operand" "r")))]"TARGET_SEXT""sext\t%0, %1, 7"[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")]);; Field extract instructions.(define_expand "extv"[(set (match_operand:SI 0 "register_operand" "")(sign_extract:SI (match_operand:SI 1 "register_operand" "")(match_operand:SI 2 "const_int_operand" "")(match_operand:SI 3 "const_int_operand" "")))]"TARGET_SEXT"{if (!sext_fldsz_operand (operands[2], SImode))FAIL;/* We could expand to a right shift followed by SEXT but that'sno better than the standard left and right shift sequence. */if (!lsbitnum_operand (operands[3], SImode))FAIL;emit_insn (gen_extv_internal (operands[0], operands[1],operands[2], operands[3]));DONE;})(define_insn "extv_internal"[(set (match_operand:SI 0 "register_operand" "=a")(sign_extract:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "sext_fldsz_operand" "i")(match_operand:SI 3 "lsbitnum_operand" "i")))]"TARGET_SEXT"{int fldsz = INTVAL (operands[2]);operands[2] = GEN_INT (fldsz - 1);return "sext\t%0, %1, %2";}[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")])(define_expand "extzv"[(set (match_operand:SI 0 "register_operand" "")(zero_extract:SI (match_operand:SI 1 "register_operand" "")(match_operand:SI 2 "const_int_operand" "")(match_operand:SI 3 "const_int_operand" "")))]""{if (!extui_fldsz_operand (operands[2], SImode))FAIL;emit_insn (gen_extzv_internal (operands[0], operands[1],operands[2], operands[3]));DONE;})(define_insn "extzv_internal"[(set (match_operand:SI 0 "register_operand" "=a")(zero_extract:SI (match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "extui_fldsz_operand" "i")(match_operand:SI 3 "const_int_operand" "i")))]""{int shift;if (BITS_BIG_ENDIAN)shift = (32 - (INTVAL (operands[2]) + INTVAL (operands[3]))) & 0x1f;elseshift = INTVAL (operands[3]) & 0x1f;operands[3] = GEN_INT (shift);return "extui\t%0, %1, %3, %2";}[(set_attr "type" "arith")(set_attr "mode" "SI")(set_attr "length" "3")]);; Conversions.(define_insn "fix_truncsfsi2"[(set (match_operand:SI 0 "register_operand" "=a")(fix:SI (match_operand:SF 1 "register_operand" "f")))]"TARGET_HARD_FLOAT""trunc.s\t%0, %1, 0"[(set_attr "type" "fconv")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "fixuns_truncsfsi2"[(set (match_operand:SI 0 "register_operand" "=a")(unsigned_fix:SI (match_operand:SF 1 "register_operand" "f")))]"TARGET_HARD_FLOAT""utrunc.s\t%0, %1, 0"[(set_attr "type" "fconv")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "floatsisf2"[(set (match_operand:SF 0 "register_operand" "=f")(float:SF (match_operand:SI 1 "register_operand" "a")))]"TARGET_HARD_FLOAT""float.s\t%0, %1, 0"[(set_attr "type" "fconv")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "floatunssisf2"[(set (match_operand:SF 0 "register_operand" "=f")(unsigned_float:SF (match_operand:SI 1 "register_operand" "a")))]"TARGET_HARD_FLOAT""ufloat.s\t%0, %1, 0"[(set_attr "type" "fconv")(set_attr "mode" "SF")(set_attr "length" "3")]);; Data movement instructions.;; 64-bit Integer moves(define_expand "movdi"[(set (match_operand:DI 0 "nonimmed_operand" "")(match_operand:DI 1 "general_operand" ""))]""{if (CONSTANT_P (operands[1]) && !TARGET_CONST16)operands[1] = force_const_mem (DImode, operands[1]);if (!register_operand (operands[0], DImode)&& !register_operand (operands[1], DImode))operands[1] = force_reg (DImode, operands[1]);operands[1] = xtensa_copy_incoming_a7 (operands[1]);})(define_insn_and_split "movdi_internal"[(set (match_operand:DI 0 "nonimmed_operand" "=a,W,a,a,U")(match_operand:DI 1 "move_operand" "r,i,T,U,r"))]"register_operand (operands[0], DImode)|| register_operand (operands[1], DImode)""#""reload_completed"[(set (match_dup 0) (match_dup 2))(set (match_dup 1) (match_dup 3))]{xtensa_split_operand_pair (operands, SImode);if (reg_overlap_mentioned_p (operands[0], operands[3])){rtx tmp;tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;}});; 32-bit Integer moves(define_expand "movsi"[(set (match_operand:SI 0 "nonimmed_operand" "")(match_operand:SI 1 "general_operand" ""))]""{if (xtensa_emit_move_sequence (operands, SImode))DONE;})(define_insn "movsi_internal"[(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,W,a,a,U,*a,*A")(match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,i,T,U,r,*A,*r"))]"xtensa_valid_move (SImode, operands)""@movi.n\t%0, %x1mov.n\t%0, %1mov.n\t%0, %1%v1l32i.n\t%0, %1%v0s32i.n\t%1, %0%v0s32i.n\t%1, %0mov\t%0, %1movsp\t%0, %1movi\t%0, %x1const16\t%0, %t1\;const16\t%0, %b1%v1l32r\t%0, %1%v1l32i\t%0, %1%v0s32i\t%1, %0rsr\t%0, ACCLOwsr\t%1, ACCLO"[(set_attr "type" "move,move,move,load,store,store,move,move,move,move,load,load,store,rsr,wsr")(set_attr "mode" "SI")(set_attr "length" "2,2,2,2,2,2,3,3,3,6,3,3,3,3,3")]);; 16-bit Integer moves(define_expand "movhi"[(set (match_operand:HI 0 "nonimmed_operand" "")(match_operand:HI 1 "general_operand" ""))]""{if (xtensa_emit_move_sequence (operands, HImode))DONE;})(define_insn "movhi_internal"[(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")(match_operand:HI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]"xtensa_valid_move (HImode, operands)""@movi.n\t%0, %x1mov.n\t%0, %1mov\t%0, %1movi\t%0, %x1%v1l16ui\t%0, %1%v0s16i\t%1, %0rsr\t%0, ACCLOwsr\t%1, ACCLO"[(set_attr "type" "move,move,move,move,load,store,rsr,wsr")(set_attr "mode" "HI")(set_attr "length" "2,2,3,3,3,3,3,3")]);; 8-bit Integer moves(define_expand "movqi"[(set (match_operand:QI 0 "nonimmed_operand" "")(match_operand:QI 1 "general_operand" ""))]""{if (xtensa_emit_move_sequence (operands, QImode))DONE;})(define_insn "movqi_internal"[(set (match_operand:QI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")(match_operand:QI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]"xtensa_valid_move (QImode, operands)""@movi.n\t%0, %x1mov.n\t%0, %1mov\t%0, %1movi\t%0, %x1%v1l8ui\t%0, %1%v0s8i\t%1, %0rsr\t%0, ACCLOwsr\t%1, ACCLO"[(set_attr "type" "move,move,move,move,load,store,rsr,wsr")(set_attr "mode" "QI")(set_attr "length" "2,2,3,3,3,3,3,3")]);; Sub-word reloads from the constant pool.(define_expand "reload<mode>_literal"[(parallel [(match_operand:HQI 0 "register_operand" "=r")(match_operand:HQI 1 "constantpool_operand" "")(match_operand:SI 2 "register_operand" "=&r")])]""{rtx lit, scratch;unsigned word_off, byte_off;if (MEM_P (operands[1])){lit = operands[1];word_off = 0;byte_off = 0;}else{gcc_assert (GET_CODE (operands[1]) == SUBREG);lit = SUBREG_REG (operands[1]);word_off = SUBREG_BYTE (operands[1]) & ~(UNITS_PER_WORD - 1);byte_off = SUBREG_BYTE (operands[1]) - word_off;}lit = adjust_address (lit, SImode, word_off);scratch = operands[2];emit_insn (gen_movsi (scratch, lit));emit_insn (gen_mov<mode> (operands[0],gen_rtx_SUBREG (<MODE>mode, scratch, byte_off)));DONE;});; 32-bit floating point moves(define_expand "movsf"[(set (match_operand:SF 0 "nonimmed_operand" "")(match_operand:SF 1 "general_operand" ""))]""{if (!TARGET_CONST16 && CONSTANT_P (operands[1]))operands[1] = force_const_mem (SFmode, operands[1]);if ((!register_operand (operands[0], SFmode)&& !register_operand (operands[1], SFmode))|| (FP_REG_P (xt_true_regnum (operands[0]))&& !(reload_in_progress | reload_completed)&& (constantpool_mem_p (operands[1])|| CONSTANT_P (operands[1]))))operands[1] = force_reg (SFmode, operands[1]);operands[1] = xtensa_copy_incoming_a7 (operands[1]);})(define_insn "movsf_internal"[(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,W,a,a,U")(match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,iF,T,U,r"))]"((register_operand (operands[0], SFmode)|| register_operand (operands[1], SFmode))&& !(FP_REG_P (xt_true_regnum (operands[0]))&& (constantpool_mem_p (operands[1]) || CONSTANT_P (operands[1]))))""@mov.s\t%0, %1%v1lsi\t%0, %1%v0ssi\t%1, %0mov.n\t%0, %1%v1l32i.n\t%0, %1%v0s32i.n\t%1, %0mov\t%0, %1wfr\t%0, %1rfr\t%0, %1const16\t%0, %t1\;const16\t%0, %b1%v1l32r\t%0, %1%v1l32i\t%0, %1%v0s32i\t%1, %0"[(set_attr "type" "farith,fload,fstore,move,load,store,move,farith,farith,move,load,load,store")(set_attr "mode" "SF")(set_attr "length" "3,3,3,2,2,2,3,3,3,6,3,3,3")])(define_insn "*lsiu"[(set (match_operand:SF 0 "register_operand" "=f")(mem:SF (plus:SI (match_operand:SI 1 "register_operand" "+a")(match_operand:SI 2 "fpmem_offset_operand" "i"))))(set (match_dup 1)(plus:SI (match_dup 1) (match_dup 2)))]"TARGET_HARD_FLOAT"{if (TARGET_SERIALIZE_VOLATILE && volatile_refs_p (PATTERN (insn)))output_asm_insn ("memw", operands);return "lsiu\t%0, %1, %2";}[(set_attr "type" "fload")(set_attr "mode" "SF")(set_attr "length" "3")])(define_insn "*ssiu"[(set (mem:SF (plus:SI (match_operand:SI 0 "register_operand" "+a")(match_operand:SI 1 "fpmem_offset_operand" "i")))(match_operand:SF 2 "register_operand" "f"))(set (match_dup 0)(plus:SI (match_dup 0) (match_dup 1)))]"TARGET_HARD_FLOAT"{if (TARGET_SERIALIZE_VOLATILE && volatile_refs_p (PATTERN (insn)))output_asm_insn ("memw", operands);return "ssiu\t%2, %0, %1";}[(set_attr "type" "fstore")(set_attr "mode" "SF")(set_attr "length" "3")]);; 64-bit floating point moves(define_expand "movdf"[(set (match_operand:DF 0 "nonimmed_operand" "")(match_operand:DF 1 "general_operand" ""))]""{if (CONSTANT_P (operands[1]) && !TARGET_CONST16)operands[1] = force_const_mem (DFmode, operands[1]);if (!register_operand (operands[0], DFmode)&& !register_operand (operands[1], DFmode))operands[1] = force_reg (DFmode, operands[1]);operands[1] = xtensa_copy_incoming_a7 (operands[1]);})(define_insn_and_split "movdf_internal"[(set (match_operand:DF 0 "nonimmed_operand" "=a,W,a,a,U")(match_operand:DF 1 "move_operand" "r,iF,T,U,r"))]"register_operand (operands[0], DFmode)|| register_operand (operands[1], DFmode)""#""reload_completed"[(set (match_dup 0) (match_dup 2))(set (match_dup 1) (match_dup 3))]{xtensa_split_operand_pair (operands, SFmode);if (reg_overlap_mentioned_p (operands[0], operands[3])){rtx tmp;tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;}});; Block moves(define_expand "movmemsi"[(parallel [(set (match_operand:BLK 0 "" "")(match_operand:BLK 1 "" ""))(use (match_operand:SI 2 "arith_operand" ""))(use (match_operand:SI 3 "const_int_operand" ""))])]""{if (!xtensa_expand_block_move (operands))FAIL;DONE;});; Shift instructions.(define_expand "ashlsi3"[(set (match_operand:SI 0 "register_operand" "")(ashift:SI (match_operand:SI 1 "register_operand" "")(match_operand:SI 2 "arith_operand" "")))]""{operands[1] = xtensa_copy_incoming_a7 (operands[1]);})(define_insn "ashlsi3_internal"[(set (match_operand:SI 0 "register_operand" "=a,a")(ashift:SI (match_operand:SI 1 "register_operand" "r,r")(match_operand:SI 2 "arith_operand" "J,r")))]"""@slli\t%0, %1, %R2ssl\t%2\;sll\t%0, %1"[(set_attr "type" "arith,arith")(set_attr "mode" "SI")(set_attr "length" "3,6")])(define_insn "ashrsi3"[(set (match_operand:SI 0 "register_operand" "=a,a")(ashiftrt:SI (match_operand:SI 1 "register_operand" "r,r")(match_operand:SI 2 "arith_operand" "J,r")))]"""@srai\t%0, %1, %R2ssr\t%2\;sra\t%0, %1"[(set_attr "type" "arith,arith")(set_attr "mode" "SI")(set_attr "length" "3,6")])(define_insn "lshrsi3"[(set (match_operand:SI 0 "register_operand" "=a,a")(lshiftrt:SI (match_operand:SI 1 "register_operand" "r,r")(match_operand:SI 2 "arith_operand" "J,r")))]""{if (which_alternative == 0){if ((INTVAL (operands[2]) & 0x1f) < 16)return "srli\t%0, %1, %R2";elsereturn "extui\t%0, %1, %R2, %L2";}return "ssr\t%2\;srl\t%0, %1";}[(set_attr "type" "arith,arith")(set_attr "mode" "SI")(set_attr "length" "3,6")])(define_insn "rotlsi3"[(set (match_operand:SI 0 "register_operand" "=a,a")(rotate:SI (match_operand:SI 1 "register_operand" "r,r")(match_operand:SI 2 "arith_operand" "J,r")))]"""@ssai\t%L2\;src\t%0, %1, %1ssl\t%2\;src\t%0, %1, %1"[(set_attr "type" "multi,multi")(set_attr "mode" "SI")(set_attr "length" "6,6")])(define_insn "rotrsi3"[(set (match_operand:SI 0 "register_operand" "=a,a")(rotatert:SI (match_operand:SI 1 "register_operand" "r,r")(match_operand:SI 2 "arith_operand" "J,r")))]"""@ssai\t%R2\;src\t%0, %1, %1ssr\t%2\;src\t%0, %1, %1"[(set_attr "type" "multi,multi")(set_attr "mode" "SI")(set_attr "length" "6,6")]);; Comparisons.;; Conditional branches.(define_expand "cbranchsi4"[(match_operator 0 "comparison_operator"[(match_operand:SI 1 "register_operand")(match_operand:SI 2 "nonmemory_operand")])(match_operand 3 "")]""{xtensa_expand_conditional_branch (operands, SImode);DONE;})(define_expand "cbranchsf4"[(match_operator 0 "comparison_operator"[(match_operand:SF 1 "register_operand")(match_operand:SF 2 "register_operand")])(match_operand 3 "")]"TARGET_HARD_FLOAT"{xtensa_expand_conditional_branch (operands, SFmode);DONE;});; Branch patterns for standard integer comparisons(define_insn "*btrue"[(set (pc)(if_then_else (match_operator 3 "branch_operator"[(match_operand:SI 0 "register_operand" "r,r")(match_operand:SI 1 "branch_operand" "K,r")])(label_ref (match_operand 2 "" ""))(pc)))]""{return xtensa_emit_branch (false, which_alternative == 0, operands);}[(set_attr "type" "jump,jump")(set_attr "mode" "none")(set_attr "length" "3,3")])(define_insn "*bfalse"[(set (pc)(if_then_else (match_operator 3 "branch_operator"[(match_operand:SI 0 "register_operand" "r,r")(match_operand:SI 1 "branch_operand" "K,r")])(pc)(label_ref (match_operand 2 "" ""))))]""{return xtensa_emit_branch (true, which_alternative == 0, operands);}[(set_attr "type" "jump,jump")(set_attr "mode" "none")(set_attr "length" "3,3")])(define_insn "*ubtrue"[(set (pc)(if_then_else (match_operator 3 "ubranch_operator"[(match_operand:SI 0 "register_operand" "r,r")(match_operand:SI 1 "ubranch_operand" "L,r")])(label_ref (match_operand 2 "" ""))(pc)))]""{return xtensa_emit_branch (false, which_alternative == 0, operands);}[(set_attr "type" "jump,jump")(set_attr "mode" "none")(set_attr "length" "3,3")])(define_insn "*ubfalse"[(set (pc)(if_then_else (match_operator 3 "ubranch_operator"[(match_operand:SI 0 "register_operand" "r,r")(match_operand:SI 1 "ubranch_operand" "L,r")])(pc)(label_ref (match_operand 2 "" ""))))]""{return xtensa_emit_branch (true, which_alternative == 0, operands);}[(set_attr "type" "jump,jump")(set_attr "mode" "none")(set_attr "length" "3,3")]);; Branch patterns for bit testing(define_insn "*bittrue"[(set (pc)(if_then_else (match_operator 3 "boolean_operator"[(zero_extract:SI(match_operand:SI 0 "register_operand" "r,r")(const_int 1)(match_operand:SI 1 "arith_operand" "J,r"))(const_int 0)])(label_ref (match_operand 2 "" ""))(pc)))]""{return xtensa_emit_bit_branch (false, which_alternative == 0, operands);}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_insn "*bitfalse"[(set (pc)(if_then_else (match_operator 3 "boolean_operator"[(zero_extract:SI(match_operand:SI 0 "register_operand" "r,r")(const_int 1)(match_operand:SI 1 "arith_operand" "J,r"))(const_int 0)])(pc)(label_ref (match_operand 2 "" ""))))]""{return xtensa_emit_bit_branch (true, which_alternative == 0, operands);}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_insn "*masktrue"[(set (pc)(if_then_else (match_operator 3 "boolean_operator"[(and:SI (match_operand:SI 0 "register_operand" "r")(match_operand:SI 1 "register_operand" "r"))(const_int 0)])(label_ref (match_operand 2 "" ""))(pc)))]""{switch (GET_CODE (operands[3])){case EQ: return "bnone\t%0, %1, %2";case NE: return "bany\t%0, %1, %2";default: gcc_unreachable ();}}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_insn "*maskfalse"[(set (pc)(if_then_else (match_operator 3 "boolean_operator"[(and:SI (match_operand:SI 0 "register_operand" "r")(match_operand:SI 1 "register_operand" "r"))(const_int 0)])(pc)(label_ref (match_operand 2 "" ""))))]""{switch (GET_CODE (operands[3])){case EQ: return "bany\t%0, %1, %2";case NE: return "bnone\t%0, %1, %2";default: gcc_unreachable ();}}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")]);; Define the loop insns used by bct optimization to represent the;; start and end of a zero-overhead loop (in loop.c). This start;; template generates the loop insn; the end template doesn't generate;; any instructions since loop end is handled in hardware.(define_insn "zero_cost_loop_start"[(set (pc)(if_then_else (eq (match_operand:SI 0 "register_operand" "a")(const_int 0))(label_ref (match_operand 1 "" ""))(pc)))(set (reg:SI 19)(plus:SI (match_dup 0) (const_int -1)))]"""loopnez\t%0, %l1"[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_insn "zero_cost_loop_end"[(set (pc)(if_then_else (ne (reg:SI 19) (const_int 0))(label_ref (match_operand 0 "" ""))(pc)))(set (reg:SI 19)(plus:SI (reg:SI 19) (const_int -1)))]""{xtensa_emit_loop_end (insn, operands);return "";}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "0")]);; Setting a register from a comparison.(define_expand "cstoresi4"[(match_operand:SI 0 "register_operand")(match_operator 1 "xtensa_cstoresi_operator"[(match_operand:SI 2 "register_operand")(match_operand:SI 3 "nonmemory_operand")])]""{if (!xtensa_expand_scc (operands, SImode))FAIL;DONE;})(define_expand "cstoresf4"[(match_operand:SI 0 "register_operand")(match_operator:SI 1 "comparison_operator"[(match_operand:SF 2 "register_operand")(match_operand:SF 3 "register_operand")])]"TARGET_HARD_FLOAT"{if (!xtensa_expand_scc (operands, SFmode))FAIL;DONE;});; Conditional moves.(define_expand "movsicc"[(set (match_operand:SI 0 "register_operand" "")(if_then_else:SI (match_operand 1 "comparison_operator" "")(match_operand:SI 2 "register_operand" "")(match_operand:SI 3 "register_operand" "")))]""{if (!xtensa_expand_conditional_move (operands, 0))FAIL;DONE;})(define_expand "movsfcc"[(set (match_operand:SF 0 "register_operand" "")(if_then_else:SF (match_operand 1 "comparison_operator" "")(match_operand:SF 2 "register_operand" "")(match_operand:SF 3 "register_operand" "")))]""{if (!xtensa_expand_conditional_move (operands, 1))FAIL;DONE;})(define_insn "movsicc_internal0"[(set (match_operand:SI 0 "register_operand" "=a,a")(if_then_else:SI (match_operator 4 "branch_operator"[(match_operand:SI 1 "register_operand" "r,r")(const_int 0)])(match_operand:SI 2 "register_operand" "r,0")(match_operand:SI 3 "register_operand" "0,r")))]""{return xtensa_emit_movcc (which_alternative == 1, false, false, operands);}[(set_attr "type" "move,move")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_insn "movsicc_internal1"[(set (match_operand:SI 0 "register_operand" "=a,a")(if_then_else:SI (match_operator 4 "boolean_operator"[(match_operand:CC 1 "register_operand" "b,b")(const_int 0)])(match_operand:SI 2 "register_operand" "r,0")(match_operand:SI 3 "register_operand" "0,r")))]"TARGET_BOOLEANS"{return xtensa_emit_movcc (which_alternative == 1, false, true, operands);}[(set_attr "type" "move,move")(set_attr "mode" "SI")(set_attr "length" "3,3")])(define_insn "movsfcc_internal0"[(set (match_operand:SF 0 "register_operand" "=a,a,f,f")(if_then_else:SF (match_operator 4 "branch_operator"[(match_operand:SI 1 "register_operand" "r,r,r,r")(const_int 0)])(match_operand:SF 2 "register_operand" "r,0,f,0")(match_operand:SF 3 "register_operand" "0,r,0,f")))]""{return xtensa_emit_movcc ((which_alternative & 1) == 1,which_alternative >= 2, false, operands);}[(set_attr "type" "move,move,move,move")(set_attr "mode" "SF")(set_attr "length" "3,3,3,3")])(define_insn "movsfcc_internal1"[(set (match_operand:SF 0 "register_operand" "=a,a,f,f")(if_then_else:SF (match_operator 4 "boolean_operator"[(match_operand:CC 1 "register_operand" "b,b,b,b")(const_int 0)])(match_operand:SF 2 "register_operand" "r,0,f,0")(match_operand:SF 3 "register_operand" "0,r,0,f")))]"TARGET_BOOLEANS"{return xtensa_emit_movcc ((which_alternative & 1) == 1,which_alternative >= 2, true, operands);}[(set_attr "type" "move,move,move,move")(set_attr "mode" "SF")(set_attr "length" "3,3,3,3")]);; Floating-point comparisons.(define_insn "s<code>_sf"[(set (match_operand:CC 0 "register_operand" "=b")(any_scc_sf:CC (match_operand:SF 1 "register_operand" "f")(match_operand:SF 2 "register_operand" "f")))]"TARGET_HARD_FLOAT""<scc_sf>.s\t%0, %1, %2"[(set_attr "type" "farith")(set_attr "mode" "BL")(set_attr "length" "3")]);; Unconditional branches.(define_insn "jump"[(set (pc)(label_ref (match_operand 0 "" "")))]"""j\t%l0"[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_expand "indirect_jump"[(set (pc)(match_operand 0 "register_operand" ""))]""{rtx dest = operands[0];if (GET_CODE (dest) != REG || GET_MODE (dest) != Pmode)operands[0] = copy_to_mode_reg (Pmode, dest);emit_jump_insn (gen_indirect_jump_internal (dest));DONE;})(define_insn "indirect_jump_internal"[(set (pc) (match_operand:SI 0 "register_operand" "r"))]"""jx\t%0"[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_expand "tablejump"[(use (match_operand:SI 0 "register_operand" ""))(use (label_ref (match_operand 1 "" "")))]""{rtx target = operands[0];if (flag_pic){/* For PIC, the table entry is relative to the start of the table. */rtx label = gen_reg_rtx (SImode);target = gen_reg_rtx (SImode);emit_move_insn (label, gen_rtx_LABEL_REF (SImode, operands[1]));emit_insn (gen_addsi3 (target, operands[0], label));}emit_jump_insn (gen_tablejump_internal (target, operands[1]));DONE;})(define_insn "tablejump_internal"[(set (pc)(match_operand:SI 0 "register_operand" "r"))(use (label_ref (match_operand 1 "" "")))]"""jx\t%0"[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")]);; Function calls.(define_expand "sym_PLT"[(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_PLT))]"""")(define_expand "call"[(call (match_operand 0 "memory_operand" "")(match_operand 1 "" ""))]""{rtx addr = XEXP (operands[0], 0);if (flag_pic && GET_CODE (addr) == SYMBOL_REF&& (!SYMBOL_REF_LOCAL_P (addr) || SYMBOL_REF_EXTERNAL_P (addr)))addr = gen_sym_PLT (addr);if (!call_insn_operand (addr, VOIDmode))XEXP (operands[0], 0) = copy_to_mode_reg (Pmode, addr);})(define_insn "call_internal"[(call (mem (match_operand:SI 0 "call_insn_operand" "nir"))(match_operand 1 "" "i"))]""{return xtensa_emit_call (0, operands);}[(set_attr "type" "call")(set_attr "mode" "none")(set_attr "length" "3")])(define_expand "call_value"[(set (match_operand 0 "register_operand" "")(call (match_operand 1 "memory_operand" "")(match_operand 2 "" "")))]""{rtx addr = XEXP (operands[1], 0);if (flag_pic && GET_CODE (addr) == SYMBOL_REF&& (!SYMBOL_REF_LOCAL_P (addr) || SYMBOL_REF_EXTERNAL_P (addr)))addr = gen_sym_PLT (addr);if (!call_insn_operand (addr, VOIDmode))XEXP (operands[1], 0) = copy_to_mode_reg (Pmode, addr);})(define_insn "call_value_internal"[(set (match_operand 0 "register_operand" "=a")(call (mem (match_operand:SI 1 "call_insn_operand" "nir"))(match_operand 2 "" "i")))]""{return xtensa_emit_call (1, operands);}[(set_attr "type" "call")(set_attr "mode" "none")(set_attr "length" "3")])(define_insn "entry"[(set (reg:SI A1_REG)(unspec_volatile:SI [(match_operand:SI 0 "const_int_operand" "i")]UNSPECV_ENTRY))]"""entry\tsp, %0"[(set_attr "type" "entry")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "return"[(return)(use (reg:SI A0_REG))]"reload_completed"{return (TARGET_DENSITY ? "retw.n" : "retw");}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "2")]);; Miscellaneous instructions.(define_expand "prologue"[(const_int 0)]""{xtensa_expand_prologue ();DONE;})(define_expand "epilogue"[(return)]""{emit_jump_insn (gen_return ());DONE;})(define_insn "nop"[(const_int 0)]""{return (TARGET_DENSITY ? "nop.n" : "nop");}[(set_attr "type" "nop")(set_attr "mode" "none")(set_attr "length" "3")])(define_expand "nonlocal_goto"[(match_operand:SI 0 "general_operand" "")(match_operand:SI 1 "general_operand" "")(match_operand:SI 2 "general_operand" "")(match_operand:SI 3 "" "")]""{xtensa_expand_nonlocal_goto (operands);DONE;});; Stuff an address into the return address register along with the window;; size in the high bits. Because we don't have the window size of the;; previous frame, assume the function called out with a CALL8 since that;; is what compilers always use. Note: __builtin_frob_return_addr has;; already been applied to the handler, but the generic version doesn't;; allow us to frob it quite enough, so we just frob here.(define_insn_and_split "eh_return"[(set (reg:SI A0_REG)(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]UNSPECV_EH_RETURN))(clobber (match_scratch:SI 1 "=r"))]"""#""reload_completed"[(set (match_dup 1) (ashift:SI (match_dup 0) (const_int 2)))(set (match_dup 1) (plus:SI (match_dup 1) (const_int 2)))(set (reg:SI A0_REG) (rotatert:SI (match_dup 1) (const_int 2)))]"");; Setting up a frame pointer is tricky for Xtensa because GCC doesn't;; know if a frame pointer is required until the reload pass, and;; because there may be an incoming argument value in the hard frame;; pointer register (a7). If there is an incoming argument in that;; register, the "set_frame_ptr" insn gets inserted immediately after;; the insn that copies the incoming argument to a pseudo or to the;; stack. This serves several purposes here: (1) it keeps the;; optimizer from copy-propagating or scheduling the use of a7 as an;; incoming argument away from the beginning of the function; (2) we;; can use a post-reload splitter to expand away the insn if a frame;; pointer is not required, so that the post-reload scheduler can do;; the right thing; and (3) it makes it easy for the prologue expander;; to search for this insn to determine whether it should add a new insn;; to set up the frame pointer.(define_insn "set_frame_ptr"[(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]""{if (frame_pointer_needed)return "mov\ta7, sp";return "";}[(set_attr "type" "move")(set_attr "mode" "SI")(set_attr "length" "3")]);; Post-reload splitter to remove fp assignment when it's not needed.(define_split[(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]"reload_completed && !frame_pointer_needed"[(unspec [(const_int 0)] UNSPEC_NOP)]"");; The preceding splitter needs something to split the insn into;;; things start breaking if the result is just a "use" so instead we;; generate the following insn.(define_insn "*unspec_nop"[(unspec [(const_int 0)] UNSPEC_NOP)]""""[(set_attr "type" "nop")(set_attr "mode" "none")(set_attr "length" "0")]);; TLS support(define_expand "sym_TPOFF"[(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_TPOFF))]"""")(define_expand "sym_DTPOFF"[(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_DTPOFF))]"""")(define_insn "load_tp"[(set (match_operand:SI 0 "register_operand" "=a")(unspec:SI [(const_int 0)] UNSPEC_TP))]"TARGET_THREADPTR""rur\t%0, THREADPTR"[(set_attr "type" "rsr")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "set_tp"[(unspec_volatile [(match_operand:SI 0 "register_operand" "r")]UNSPECV_SET_TP)]"TARGET_THREADPTR""wur\t%0, THREADPTR"[(set_attr "type" "wsr")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "tls_func"[(set (match_operand:SI 0 "register_operand" "=a")(unspec:SI [(match_operand:SI 1 "tls_symbol_operand" "")]UNSPEC_TLS_FUNC))]"TARGET_THREADPTR && HAVE_AS_TLS""movi\t%0, %1@TLSFUNC"[(set_attr "type" "load")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "tls_arg"[(set (match_operand:SI 0 "register_operand" "=a")(unspec:SI [(match_operand:SI 1 "tls_symbol_operand" "")]UNSPEC_TLS_ARG))]"TARGET_THREADPTR && HAVE_AS_TLS""movi\t%0, %1@TLSARG"[(set_attr "type" "load")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "tls_call"[(set (match_operand:SI 0 "register_operand" "=a")(call (mem:SI (unspec:SI [(match_operand:SI 1 "register_operand" "r")(match_operand:SI 2 "tls_symbol_operand" "")]UNSPEC_TLS_CALL))(match_operand 3 "" "i")))]"TARGET_THREADPTR && HAVE_AS_TLS""callx8.tls %1, %2@TLSCALL"[(set_attr "type" "call")(set_attr "mode" "none")(set_attr "length" "3")]);; Instructions for the Xtensa "boolean" option.(define_insn "*booltrue"[(set (pc)(if_then_else (match_operator 2 "boolean_operator"[(match_operand:CC 0 "register_operand" "b")(const_int 0)])(label_ref (match_operand 1 "" ""))(pc)))]"TARGET_BOOLEANS"{if (GET_CODE (operands[2]) == EQ)return "bf\t%0, %1";elsereturn "bt\t%0, %1";}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")])(define_insn "*boolfalse"[(set (pc)(if_then_else (match_operator 2 "boolean_operator"[(match_operand:CC 0 "register_operand" "b")(const_int 0)])(pc)(label_ref (match_operand 1 "" ""))))]"TARGET_BOOLEANS"{if (GET_CODE (operands[2]) == EQ)return "bt\t%0, %1";elsereturn "bf\t%0, %1";}[(set_attr "type" "jump")(set_attr "mode" "none")(set_attr "length" "3")]);; Atomic operations(define_expand "memory_barrier"[(set (match_dup 0)(unspec:BLK [(match_dup 0)] UNSPEC_MEMW))]""{operands[0] = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode));MEM_VOLATILE_P (operands[0]) = 1;})(define_insn "*memory_barrier"[(set (match_operand:BLK 0 "" "")(unspec:BLK [(match_dup 0)] UNSPEC_MEMW))]"""memw"[(set_attr "type" "unknown")(set_attr "mode" "none")(set_attr "length" "3")]);; sync_lock_release is only implemented for SImode.;; For other modes, just use the default of a store with a memory_barrier.(define_insn "sync_lock_releasesi"[(set (match_operand:SI 0 "mem_operand" "=U")(unspec_volatile:SI[(match_operand:SI 1 "register_operand" "r")]UNSPECV_S32RI))]"TARGET_RELEASE_SYNC""s32ri\t%1, %0"[(set_attr "type" "store")(set_attr "mode" "SI")(set_attr "length" "3")])(define_insn "sync_compare_and_swapsi"[(parallel[(set (match_operand:SI 0 "register_operand" "=a")(match_operand:SI 1 "mem_operand" "+U"))(set (match_dup 1)(unspec_volatile:SI[(match_dup 1)(match_operand:SI 2 "register_operand" "r")(match_operand:SI 3 "register_operand" "0")]UNSPECV_S32C1I))])]"TARGET_S32C1I""wsr\t%2, SCOMPARE1\;s32c1i\t%3, %1"[(set_attr "type" "multi")(set_attr "mode" "SI")(set_attr "length" "6")])(define_expand "sync_compare_and_swap<mode>"[(parallel[(set (match_operand:HQI 0 "register_operand" "")(match_operand:HQI 1 "mem_operand" ""))(set (match_dup 1)(unspec_volatile:HQI[(match_dup 1)(match_operand:HQI 2 "register_operand" "")(match_operand:HQI 3 "register_operand" "")]UNSPECV_S32C1I))])]"TARGET_S32C1I"{xtensa_expand_compare_and_swap (operands[0], operands[1],operands[2], operands[3]);DONE;})(define_expand "sync_lock_test_and_set<mode>"[(match_operand:HQI 0 "register_operand")(match_operand:HQI 1 "memory_operand")(match_operand:HQI 2 "register_operand")]"TARGET_S32C1I"{xtensa_expand_atomic (SET, operands[0], operands[1], operands[2], false);DONE;})(define_expand "sync_<atomic><mode>"[(set (match_operand:HQI 0 "memory_operand")(ATOMIC:HQI (match_dup 0)(match_operand:HQI 1 "register_operand")))]"TARGET_S32C1I"{xtensa_expand_atomic (<CODE>, NULL_RTX, operands[0], operands[1], false);DONE;})(define_expand "sync_old_<atomic><mode>"[(set (match_operand:HQI 0 "register_operand")(match_operand:HQI 1 "memory_operand"))(set (match_dup 1)(ATOMIC:HQI (match_dup 1)(match_operand:HQI 2 "register_operand")))]"TARGET_S32C1I"{xtensa_expand_atomic (<CODE>, operands[0], operands[1], operands[2], false);DONE;})(define_expand "sync_new_<atomic><mode>"[(set (match_operand:HQI 0 "register_operand")(ATOMIC:HQI (match_operand:HQI 1 "memory_operand")(match_operand:HQI 2 "register_operand")))(set (match_dup 1) (ATOMIC:HQI (match_dup 1) (match_dup 2)))]"TARGET_S32C1I"{xtensa_expand_atomic (<CODE>, operands[0], operands[1], operands[2], true);DONE;})
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