robotux
/
rt_gccstream
1
0
Fork 0
Code Issues Pull Requests Releases Activity
rt_gccstream/gcc/config/xtensa/xtensa.md

1914 lines
52 KiB
Markdown
Raw Permalink Normal View History

Creating a development branch for OpenMP stream extensions. git-svn-id: svn://gcc.gnu.org/svn/gcc/branches/omp-stream@159266 138bc75d-0d04-0410-961f-82ee72b054a4
2010-05-11 12:00:02 +02:00
;; GCC machine description for Tensilica's Xtensa architecture.
;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
;; 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, %2
addi.n\t%0, %1, %d2
add\t%0, %1, %2
addi\t%0, %1, %d2
addmi\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, %2
mul.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, %2
umul.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 "muladdsf3"
[(set (match_operand:SF 0 "register_operand" "=f")
(plus:SF (mult: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 && TARGET_FUSED_MADD"
"madd.s\t%0, %1, %2"
[(set_attr "type" "fmadd")
(set_attr "mode" "SF")
(set_attr "length" "3")])
(define_insn "mulsubsf3"
[(set (match_operand:SF 0 "register_operand" "=f")
(minus:SF (match_operand:SF 1 "register_operand" "0")
(mult:SF (match_operand:SF 2 "register_operand" "%f")
(match_operand:SF 3 "register_operand" "f"))))]
"TARGET_HARD_FLOAT && TARGET_FUSED_MADD"
"msub.s\t%0, %2, %3"
[(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, %K2
and\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, 16
l16ui\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, 8
l8ui\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]));
else
xtensa_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, 15
l16si\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]));
else
xtensa_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's
no 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;
else
shift = 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, %x1
mov.n\t%0, %1
mov.n\t%0, %1
%v1l32i.n\t%0, %1
%v0s32i.n\t%1, %0
%v0s32i.n\t%1, %0
mov\t%0, %1
movsp\t%0, %1
movi\t%0, %x1
const16\t%0, %t1\;const16\t%0, %b1
%v1l32r\t%0, %1
%v1l32i\t%0, %1
%v0s32i\t%1, %0
rsr\t%0, ACCLO
wsr\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, %x1
mov.n\t%0, %1
mov\t%0, %1
movi\t%0, %x1
%v1l16ui\t%0, %1
%v0s16i\t%1, %0
rsr\t%0, ACCLO
wsr\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, %x1
mov.n\t%0, %1
mov\t%0, %1
movi\t%0, %x1
%v1l8ui\t%0, %1
%v0s8i\t%1, %0
rsr\t%0, ACCLO
wsr\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, %0
mov.n\t%0, %1
%v1l32i.n\t%0, %1
%v0s32i.n\t%1, %0
mov\t%0, %1
wfr\t%0, %1
rfr\t%0, %1
const16\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, %R2
ssl\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, %R2
ssr\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";
else
return "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, %1
ssl\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, %1
ssr\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";
else
return "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";
else
return "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;
})