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-(* *********************************************************************)
-(* *)
-(* The Compcert verified compiler *)
-(* *)
-(* Xavier Leroy, Collège de France and INRIA Paris *)
-(* *)
-(* Copyright Institut National de Recherche en Informatique et en *)
-(* Automatique. All rights reserved. This file is distributed *)
-(* under the terms of the INRIA Non-Commercial License Agreement. *)
-(* *)
-(* *********************************************************************)
-
-(* Printing AArch64 assembly code in asm syntax *)
-
-open Printf
-open Camlcoq
-open Sections
-open AST
-open Asm
-open AisAnnot
-open PrintAsmaux
-open Fileinfo
-
-(* Recognition of FP numbers that are supported by the fmov #imm instructions:
- "a normalized binary floating point encoding with 1 sign bit,
- 4 bits of fraction and a 3-bit exponent"
-*)
-
-let is_immediate_float64 bits =
- let exp = (Int64.(to_int (shift_right_logical bits 52)) land 0x7FF) - 1023 in
- let mant = Int64.logand bits 0xF_FFFF_FFFF_FFFFL in
- exp >= -3 && exp <= 4 && Int64.logand mant 0xF_0000_0000_0000L = mant
-
-let is_immediate_float32 bits =
- let exp = (Int32.(to_int (shift_right_logical bits 23)) land 0xFF) - 127 in
- let mant = Int32.logand bits 0x7F_FFFFl in
- exp >= -3 && exp <= 4 && Int32.logand mant 0x78_0000l = mant
-
-(* Naming and printing registers *)
-
-let intsz oc (sz, n) =
- match sz with X -> coqint64 oc n | W -> coqint oc n
-
-let xreg_name = function
- | X0 -> "x0" | X1 -> "x1" | X2 -> "x2" | X3 -> "x3"
- | X4 -> "x4" | X5 -> "x5" | X6 -> "x6" | X7 -> "x7"
- | X8 -> "x8" | X9 -> "x9" | X10 -> "x10" | X11 -> "x11"
- | X12 -> "x12" | X13 -> "x13" | X14 -> "x14" | X15 -> "x15"
- | X16 -> "x16" | X17 -> "x17" | X18 -> "x18" | X19 -> "x19"
- | X20 -> "x20" | X21 -> "x21" | X22 -> "x22" | X23 -> "x23"
- | X24 -> "x24" | X25 -> "x25" | X26 -> "x26" | X27 -> "x27"
- | X28 -> "x28" | X29 -> "x29" | X30 -> "x30"
-
-let wreg_name = function
- | X0 -> "w0" | X1 -> "w1" | X2 -> "w2" | X3 -> "w3"
- | X4 -> "w4" | X5 -> "w5" | X6 -> "w6" | X7 -> "w7"
- | X8 -> "w8" | X9 -> "w9" | X10 -> "w10" | X11 -> "w11"
- | X12 -> "w12" | X13 -> "w13" | X14 -> "w14" | X15 -> "w15"
- | X16 -> "w16" | X17 -> "w17" | X18 -> "w18" | X19 -> "w19"
- | X20 -> "w20" | X21 -> "w21" | X22 -> "w22" | X23 -> "w23"
- | X24 -> "w24" | X25 -> "w25" | X26 -> "w26" | X27 -> "w27"
- | X28 -> "w28" | X29 -> "w29" | X30 -> "w30"
-
-let xreg0_name = function RR0 r -> xreg_name r | XZR -> "xzr"
-let wreg0_name = function RR0 r -> wreg_name r | XZR -> "wzr"
-
-let xregsp_name = function RR1 r -> xreg_name r | XSP -> "sp"
-let wregsp_name = function RR1 r -> wreg_name r | XSP -> "wsp"
-
-let dreg_name = function
-| D0 -> "d0" | D1 -> "d1" | D2 -> "d2" | D3 -> "d3"
-| D4 -> "d4" | D5 -> "d5" | D6 -> "d6" | D7 -> "d7"
-| D8 -> "d8" | D9 -> "d9" | D10 -> "d10" | D11 -> "d11"
-| D12 -> "d12" | D13 -> "d13" | D14 -> "d14" | D15 -> "d15"
-| D16 -> "d16" | D17 -> "d17" | D18 -> "d18" | D19 -> "d19"
-| D20 -> "d20" | D21 -> "d21" | D22 -> "d22" | D23 -> "d23"
-| D24 -> "d24" | D25 -> "d25" | D26 -> "d26" | D27 -> "d27"
-| D28 -> "d28" | D29 -> "d29" | D30 -> "d30" | D31 -> "d31"
-
-let sreg_name = function
-| D0 -> "s0" | D1 -> "s1" | D2 -> "s2" | D3 -> "s3"
-| D4 -> "s4" | D5 -> "s5" | D6 -> "s6" | D7 -> "s7"
-| D8 -> "s8" | D9 -> "s9" | D10 -> "s10" | D11 -> "s11"
-| D12 -> "s12" | D13 -> "s13" | D14 -> "s14" | D15 -> "s15"
-| D16 -> "s16" | D17 -> "s17" | D18 -> "s18" | D19 -> "s19"
-| D20 -> "s20" | D21 -> "s21" | D22 -> "s22" | D23 -> "s23"
-| D24 -> "s24" | D25 -> "s25" | D26 -> "s26" | D27 -> "s27"
-| D28 -> "s28" | D29 -> "s29" | D30 -> "s30" | D31 -> "s31"
-
-let xreg oc r = output_string oc (xreg_name r)
-let wreg oc r = output_string oc (wreg_name r)
-let ireg oc (sz, r) =
- output_string oc (match sz with X -> xreg_name r | W -> wreg_name r)
-
-let xreg0 oc r = output_string oc (xreg0_name r)
-let wreg0 oc r = output_string oc (wreg0_name r)
-let ireg0 oc (sz, r) =
- output_string oc (match sz with X -> xreg0_name r | W -> wreg0_name r)
-
-let xregsp oc r = output_string oc (xregsp_name r)
-let iregsp oc (sz, r) =
- output_string oc (match sz with X -> xregsp_name r | W -> wregsp_name r)
-
-let dreg oc r = output_string oc (dreg_name r)
-let sreg oc r = output_string oc (sreg_name r)
-let freg oc (sz, r) =
- output_string oc (match sz with D -> dreg_name r | S -> sreg_name r)
-
-let preg_asm oc ty = function
- | IR r -> if ty = Tint then wreg oc r else xreg oc r
- | FR r -> if ty = Tsingle then sreg oc r else dreg oc r
- | _ -> assert false
-
-let preg_annot = function
- | IR r -> xreg_name r
- | FR r -> dreg_name r
- | _ -> assert false
-
-(* Base-2 log of a Caml integer *)
-let rec log2 n =
- assert (n > 0);
- if n = 1 then 0 else 1 + log2 (n lsr 1)
-
-(* System dependent printer functions *)
-
-module type SYSTEM =
- sig
- val comment: string
- val raw_symbol: out_channel -> string -> unit
- val symbol: out_channel -> P.t -> unit
- val symbol_offset_high: out_channel -> P.t * Z.t -> unit
- val symbol_offset_low: out_channel -> P.t * Z.t -> unit
- val label: out_channel -> int -> unit
- val label_high: out_channel -> int -> unit
- val label_low: out_channel -> int -> unit
- val load_symbol_address: out_channel -> ireg -> P.t -> unit
- val name_of_section: section_name -> string
- val print_fun_info: out_channel -> P.t -> unit
- val print_var_info: out_channel -> P.t -> unit
- val print_comm_decl: out_channel -> P.t -> Z.t -> int -> unit
- val print_lcomm_decl: out_channel -> P.t -> Z.t -> int -> unit
- end
-
-module ELF_System : SYSTEM =
- struct
- let comment = "//"
- let raw_symbol = output_string
- let symbol = elf_symbol
- let symbol_offset_high = elf_symbol_offset
- let symbol_offset_low oc id_ofs =
- fprintf oc "#:lo12:%a" elf_symbol_offset id_ofs
-
- let label = elf_label
- let label_high = elf_label
- let label_low oc lbl =
- fprintf oc "#:lo12:%a" elf_label lbl
-
- let load_symbol_address oc rd id =
- fprintf oc " adrp %a, :got:%a\n" xreg rd symbol id;
- fprintf oc " ldr %a, [%a, #:got_lo12:%a]\n" xreg rd xreg rd symbol id
-
- let name_of_section = function
- | Section_text -> ".text"
- | Section_data i | Section_small_data i ->
- variable_section ~sec:".data" ~bss:".bss" i
- | Section_const i | Section_small_const i ->
- variable_section ~sec:".section .rodata" i
- | Section_string -> ".section .rodata"
- | Section_literal -> ".section .rodata"
- | Section_jumptable -> ".section .rodata"
- | Section_debug_info _ -> ".section .debug_info,\"\",%progbits"
- | Section_debug_loc -> ".section .debug_loc,\"\",%progbits"
- | Section_debug_abbrev -> ".section .debug_abbrev,\"\",%progbits"
- | Section_debug_line _ -> ".section .debug_line,\"\",%progbits"
- | Section_debug_ranges -> ".section .debug_ranges,\"\",%progbits"
- | Section_debug_str -> ".section .debug_str,\"MS\",%progbits,1"
- | Section_user(s, wr, ex) ->
- sprintf ".section \"%s\",\"a%s%s\",%%progbits"
- s (if wr then "w" else "") (if ex then "x" else "")
- | Section_ais_annotation -> sprintf ".section \"__compcert_ais_annotations\",\"\",@note"
-
- let print_fun_info = elf_print_fun_info
- let print_var_info = elf_print_var_info
-
- let print_comm_decl oc name sz al =
- fprintf oc " .comm %a, %s, %d\n" symbol name (Z.to_string sz) al
-
- let print_lcomm_decl oc name sz al =
- fprintf oc " .local %a\n" symbol name;
- print_comm_decl oc name sz al
-
- end
-
-module MacOS_System : SYSTEM =
- struct
- let comment = ";"
-
- let raw_symbol oc s =
- fprintf oc "_%s" s
-
- let symbol oc symb =
- raw_symbol oc (extern_atom symb)
-
- let symbol_offset_gen kind oc (id, ofs) =
- fprintf oc "%a@%s" symbol id kind;
- let ofs = camlint64_of_ptrofs ofs in
- if ofs <> 0L then fprintf oc " + %Ld" ofs
-
- let symbol_offset_high = symbol_offset_gen "PAGE"
- let symbol_offset_low = symbol_offset_gen "PAGEOFF"
-
- let label oc lbl =
- fprintf oc "L%d" lbl
-
- let label_high oc lbl =
- fprintf oc "%a@PAGE" label lbl
- let label_low oc lbl =
- fprintf oc "%a@PAGEOFF" label lbl
-
- let load_symbol_address oc rd id =
- fprintf oc " adrp %a, %a@GOTPAGE\n" xreg rd symbol id;
- fprintf oc " ldr %a, [%a, %a@GOTPAGEOFF]\n" xreg rd xreg rd symbol id
-
- let name_of_section = function
- | Section_text -> ".text"
- | Section_data i | Section_small_data i ->
- variable_section ~sec:".data" i
- | Section_const i | Section_small_const i ->
- variable_section ~sec:".const" ~reloc:".const_data" i
- | Section_string -> ".const"
- | Section_literal -> ".const"
- | Section_jumptable -> ".text"
- | Section_user(s, wr, ex) ->
- sprintf ".section \"%s\", %s, %s"
- (if wr then "__DATA" else "__TEXT") s
- (if ex then "regular, pure_instructions" else "regular")
- | Section_debug_info _ -> ".section __DWARF,__debug_info,regular,debug"
- | Section_debug_loc -> ".section __DWARF,__debug_loc,regular,debug"
- | Section_debug_line _ -> ".section __DWARF,__debug_line,regular,debug"
- | Section_debug_str -> ".section __DWARF,__debug_str,regular,debug"
- | Section_debug_ranges -> ".section __DWARF,__debug_ranges,regular,debug"
- | Section_debug_abbrev -> ".section __DWARF,__debug_abbrev,regular,debug"
- | Section_ais_annotation -> assert false (* Not supported under MacOS *)
-
- let print_fun_info _ _ = ()
- let print_var_info _ _ = ()
-
- let print_comm_decl oc name sz al =
- fprintf oc " .comm %a, %s, %d\n"
- symbol name (Z.to_string sz) (log2 al)
-
- let print_lcomm_decl oc name sz al =
- fprintf oc " .lcomm %a, %s, %d\n"
- symbol name (Z.to_string sz) (log2 al)
-
- end
-
-(* Module containing the printing functions *)
-
-module Target(System: SYSTEM): TARGET =
- struct
- include System
-
-(* Basic printing functions *)
-
- let print_label oc lbl = label oc (transl_label lbl)
-
-(* Names of sections *)
-
- let section oc sec =
- fprintf oc " %s\n" (name_of_section sec)
-
-(* Associate labels to floating-point constants and to symbols. *)
-
- let emit_constants oc lit =
- if exists_constants () then begin
- section oc lit;
- if Hashtbl.length literal64_labels > 0 then
- begin
- fprintf oc " .balign 8\n";
- Hashtbl.iter
- (fun bf lbl -> fprintf oc "%a: .quad 0x%Lx\n" label lbl bf)
- literal64_labels
- end;
- if Hashtbl.length literal32_labels > 0 then
- begin
- fprintf oc " .balign 4\n";
- Hashtbl.iter
- (fun bf lbl ->
- fprintf oc "%a: .long 0x%lx\n" label lbl bf)
- literal32_labels
- end;
- reset_literals ()
- end
-
-(* Emit .file / .loc debugging directives *)
-
- let print_file_line oc file line =
- print_file_line oc comment file line
-
-(* Name of testable condition *)
-
- let condition_name = function
- | TCeq -> "eq"
- | TCne -> "ne"
- | TChs -> "hs"
- | TClo -> "lo"
- | TCmi -> "mi"
- | TCpl -> "pl"
- | TChi -> "hi"
- | TCls -> "ls"
- | TCge -> "ge"
- | TClt -> "lt"
- | TCgt -> "gt"
- | TCle -> "le"
-
-(* Print an addressing mode *)
-
- let addressing oc = function
- | ADimm(base, n) -> fprintf oc "[%a, #%a]" xregsp base coqint64 n
- | ADreg(base, r) -> fprintf oc "[%a, %a]" xregsp base xreg r
- | ADlsl(base, r, n) -> fprintf oc "[%a, %a, lsl #%a]" xregsp base xreg r coqint n
- | ADsxt(base, r, n) -> fprintf oc "[%a, %a, sxtw #%a]" xregsp base wreg r coqint n
- | ADuxt(base, r, n) -> fprintf oc "[%a, %a, uxtw #%a]" xregsp base wreg r coqint n
- | ADadr(base, id, ofs) -> fprintf oc "[%a, %a]" xregsp base symbol_offset_low (id, ofs)
- | ADpostincr(base, n) -> fprintf oc "[%a], #%a" xregsp base coqint64 n
-
-(* Print a shifted operand *)
- let shiftop oc = function
- | SOnone -> ()
- | SOlsl n -> fprintf oc ", lsl #%a" coqint n
- | SOlsr n -> fprintf oc ", lsr #%a" coqint n
- | SOasr n -> fprintf oc ", asr #%a" coqint n
- | SOror n -> fprintf oc ", ror #%a" coqint n
-
-(* Print a sign- or zero-extended register operand *)
- let regextend oc = function
- | (r, EOsxtb n) -> fprintf oc "%a, sxtb #%a" wreg r coqint n
- | (r, EOsxth n) -> fprintf oc "%a, sxth #%a" wreg r coqint n
- | (r, EOsxtw n) -> fprintf oc "%a, sxtw #%a" wreg r coqint n
- | (r, EOuxtb n) -> fprintf oc "%a, uxtb #%a" wreg r coqint n
- | (r, EOuxth n) -> fprintf oc "%a, uxth #%a" wreg r coqint n
- | (r, EOuxtw n) -> fprintf oc "%a, uxtw #%a" wreg r coqint n
- | (r, EOuxtx n) -> fprintf oc "%a, uxtx #%a" xreg r coqint n
-
-(* Printing of instructions *)
- let print_instruction oc = function
- (* Branches *)
- | Pb lbl ->
- fprintf oc " b %a\n" print_label lbl
- | Pbc(c, lbl) ->
- fprintf oc " b.%s %a\n" (condition_name c) print_label lbl
- | Pbl(id, sg) ->
- fprintf oc " bl %a\n" symbol id
- | Pbs(id, sg) ->
- fprintf oc " b %a\n" symbol id
- | Pblr(r, sg) ->
- fprintf oc " blr %a\n" xreg r
- | Pbr(r, sg) ->
- fprintf oc " br %a\n" xreg r
- | Pret r ->
- fprintf oc " ret %a\n" xreg r
- | Pcbnz(sz, r, lbl) ->
- fprintf oc " cbnz %a, %a\n" ireg (sz, r) print_label lbl
- | Pcbz(sz, r, lbl) ->
- fprintf oc " cbz %a, %a\n" ireg (sz, r) print_label lbl
- | Ptbnz(sz, r, n, lbl) ->
- fprintf oc " tbnz %a, #%a, %a\n" ireg (sz, r) coqint n print_label lbl
- | Ptbz(sz, r, n, lbl) ->
- fprintf oc " tbz %a, #%a, %a\n" ireg (sz, r) coqint n print_label lbl
- (* Memory loads and stores *)
- | Pldrw(rd, a) | Pldrw_a(rd, a) ->
- fprintf oc " ldr %a, %a\n" wreg rd addressing a
- | Pldrx(rd, a) | Pldrx_a(rd, a) ->
- fprintf oc " ldr %a, %a\n" xreg rd addressing a
- | Pldrb(sz, rd, a) ->
- fprintf oc " ldrb %a, %a\n" wreg rd addressing a
- | Pldrsb(sz, rd, a) ->
- fprintf oc " ldrsb %a, %a\n" ireg (sz, rd) addressing a
- | Pldrh(sz, rd, a) ->
- fprintf oc " ldrh %a, %a\n" wreg rd addressing a
- | Pldrsh(sz, rd, a) ->
- fprintf oc " ldrsh %a, %a\n" ireg (sz, rd) addressing a
- | Pldrzw(rd, a) ->
- fprintf oc " ldr %a, %a\n" wreg rd addressing a
- (* the upper 32 bits of Xrd are set to 0, performing zero-extension *)
- | Pldrsw(rd, a) ->
- fprintf oc " ldrsw %a, %a\n" xreg rd addressing a
- | Pldp(rd1, rd2, a) ->
- fprintf oc " ldp %a, %a, %a\n" xreg rd1 xreg rd2 addressing a
- | Pstrw(rs, a) | Pstrw_a(rs, a) ->
- fprintf oc " str %a, %a\n" wreg rs addressing a
- | Pstrx(rs, a) | Pstrx_a(rs, a) ->
- fprintf oc " str %a, %a\n" xreg rs addressing a
- | Pstrb(rs, a) ->
- fprintf oc " strb %a, %a\n" wreg rs addressing a
- | Pstrh(rs, a) ->
- fprintf oc " strh %a, %a\n" wreg rs addressing a
- | Pstp(rs1, rs2, a) ->
- fprintf oc " stp %a, %a, %a\n" xreg rs1 xreg rs2 addressing a
- (* Integer arithmetic, immediate *)
- | Paddimm(sz, rd, r1, n) ->
- fprintf oc " add %a, %a, #%a\n" iregsp (sz, rd) iregsp (sz, r1) intsz (sz, n)
- | Psubimm(sz, rd, r1, n) ->
- fprintf oc " sub %a, %a, #%a\n" iregsp (sz, rd) iregsp (sz, r1) intsz (sz, n)
- | Pcmpimm(sz, r1, n) ->
- fprintf oc " cmp %a, #%a\n" ireg (sz, r1) intsz (sz, n)
- | Pcmnimm(sz, r1, n) ->
- fprintf oc " cmn %a, #%a\n" ireg (sz, r1) intsz (sz, n)
- (* Move integer register *)
- | Pmov(rd, r1) ->
- fprintf oc " mov %a, %a\n" xregsp rd xregsp r1
- (* Logical, immediate *)
- | Pandimm(sz, rd, r1, n) ->
- fprintf oc " and %a, %a, #%a\n" ireg (sz, rd) ireg0 (sz, r1) intsz (sz, n)
- | Peorimm(sz, rd, r1, n) ->
- fprintf oc " eor %a, %a, #%a\n" ireg (sz, rd) ireg0 (sz, r1) intsz (sz, n)
- | Porrimm(sz, rd, r1, n) ->
- fprintf oc " orr %a, %a, #%a\n" ireg (sz, rd) ireg0 (sz, r1) intsz (sz, n)
- | Ptstimm(sz, r1, n) ->
- fprintf oc " tst %a, #%a\n" ireg (sz, r1) intsz (sz, n)
- (* Move wide immediate *)
- | Pmovz(sz, rd, n, pos) ->
- fprintf oc " movz %a, #%d, lsl #%d\n" ireg (sz, rd) (Z.to_int n) (Z.to_int pos)
- | Pmovn(sz, rd, n, pos) ->
- fprintf oc " movn %a, #%d, lsl #%d\n" ireg (sz, rd) (Z.to_int n) (Z.to_int pos)
- | Pmovk(sz, rd, n, pos) ->
- fprintf oc " movk %a, #%d, lsl #%d\n" ireg (sz, rd) (Z.to_int n) (Z.to_int pos)
- (* PC-relative addressing *)
- | Padrp(rd, id, ofs) ->
- fprintf oc " adrp %a, %a\n" xreg rd symbol_offset_high (id, ofs)
- | Paddadr(rd, r1, id, ofs) ->
- fprintf oc " add %a, %a, %a\n" xreg rd xreg r1 symbol_offset_low (id, ofs)
- (* Bit-field operations *)
- | Psbfiz(sz, rd, r1, r, s) ->
- fprintf oc " sbfiz %a, %a, %a, %d\n" ireg (sz, rd) ireg (sz, r1) coqint r (Z.to_int s)
- | Psbfx(sz, rd, r1, r, s) ->
- fprintf oc " sbfx %a, %a, %a, %d\n" ireg (sz, rd) ireg (sz, r1) coqint r (Z.to_int s)
- | Pubfiz(sz, rd, r1, r, s) ->
- fprintf oc " ubfiz %a, %a, %a, %d\n" ireg (sz, rd) ireg (sz, r1) coqint r (Z.to_int s)
- | Pubfx(sz, rd, r1, r, s) ->
- fprintf oc " ubfx %a, %a, %a, %d\n" ireg (sz, rd) ireg (sz, r1) coqint r (Z.to_int s)
- (* Integer arithmetic, shifted register *)
- | Padd(sz, rd, r1, r2, s) ->
- fprintf oc " add %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Psub(sz, rd, r1, r2, s) ->
- fprintf oc " sub %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Pcmp(sz, r1, r2, s) ->
- fprintf oc " cmp %a, %a%a\n" ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Pcmn(sz, r1, r2, s) ->
- fprintf oc " cmn %a, %a%a\n" ireg0 (sz, r1) ireg (sz, r2) shiftop s
- (* Integer arithmetic, extending register *)
- | Paddext(rd, r1, r2, x) ->
- fprintf oc " add %a, %a, %a\n" xregsp rd xregsp r1 regextend (r2, x)
- | Psubext(rd, r1, r2, x) ->
- fprintf oc " sub %a, %a, %a\n" xregsp rd xregsp r1 regextend (r2, x)
- | Pcmpext(r1, r2, x) ->
- fprintf oc " cmp %a, %a\n" xreg r1 regextend (r2, x)
- | Pcmnext(r1, r2, x) ->
- fprintf oc " cmn %a, %a\n" xreg r1 regextend (r2, x)
- (* Logical, shifted register *)
- | Pand(sz, rd, r1, r2, s) ->
- fprintf oc " and %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Pbic(sz, rd, r1, r2, s) ->
- fprintf oc " bic %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Peon(sz, rd, r1, r2, s) ->
- fprintf oc " eon %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Peor(sz, rd, r1, r2, s) ->
- fprintf oc " eor %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Porr(sz, rd, r1, r2, s) ->
- fprintf oc " orr %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Porn(sz, rd, r1, r2, s) ->
- fprintf oc " orn %a, %a, %a%a\n" ireg (sz, rd) ireg0 (sz, r1) ireg (sz, r2) shiftop s
- | Ptst(sz, r1, r2, s) ->
- fprintf oc " tst %a, %a%a\n" ireg0 (sz, r1) ireg (sz, r2) shiftop s
- (* Variable shifts *)
- | Pasrv(sz, rd, r1, r2) ->
- fprintf oc " asr %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2)
- | Plslv(sz, rd, r1, r2) ->
- fprintf oc " lsl %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2)
- | Plsrv(sz, rd, r1, r2) ->
- fprintf oc " lsr %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2)
- | Prorv(sz, rd, r1, r2) ->
- fprintf oc " ror %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2)
- (* Bit operations *)
- | Pcls(sz, rd, r1) ->
- fprintf oc " cls %a, %a\n" ireg (sz, rd) ireg (sz, r1)
- | Pclz(sz, rd, r1) ->
- fprintf oc " clz %a, %a\n" ireg (sz, rd) ireg (sz, r1)
- | Prev(sz, rd, r1) ->
- fprintf oc " rev %a, %a\n" ireg (sz, rd) ireg (sz, r1)
- | Prev16(sz, rd, r1) ->
- fprintf oc " rev16 %a, %a\n" ireg (sz, rd) ireg (sz, r1)
- | Prbit(sz, rd, r1) ->
- fprintf oc " rbit %a, %a\n" ireg (sz, rd) ireg (sz, r1)
- (* Conditional data processing *)
- | Pcsel(rd, r1, r2, c) ->
- fprintf oc " csel %a, %a, %a, %s\n" xreg rd xreg r1 xreg r2 (condition_name c)
- | Pcset(rd, c) ->
- fprintf oc " cset %a, %s\n" xreg rd (condition_name c)
- (* Integer multiply/divide *)
- | Pmadd(sz, rd, r1, r2, r3) ->
- fprintf oc " madd %a, %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2) ireg0 (sz, r3)
- | Pmsub(sz, rd, r1, r2, r3) ->
- fprintf oc " msub %a, %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2) ireg0 (sz, r3)
- | Psmulh(rd, r1, r2) ->
- fprintf oc " smulh %a, %a, %a\n" xreg rd xreg r1 xreg r2
- | Pumulh(rd, r1, r2) ->
- fprintf oc " umulh %a, %a, %a\n" xreg rd xreg r1 xreg r2
- | Psdiv(sz, rd, r1, r2) ->
- fprintf oc " sdiv %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2)
- | Pudiv(sz, rd, r1, r2) ->
- fprintf oc " udiv %a, %a, %a\n" ireg (sz, rd) ireg (sz, r1) ireg (sz, r2)
- (* Floating-point loads and stores *)
- | Pldrs(rd, a) ->
- fprintf oc " ldr %a, %a\n" sreg rd addressing a
- | Pldrd(rd, a) | Pldrd_a(rd, a) ->
- fprintf oc " ldr %a, %a\n" dreg rd addressing a
- | Pstrs(rd, a) ->
- fprintf oc " str %a, %a\n" sreg rd addressing a
- | Pstrd(rd, a) | Pstrd_a(rd, a) ->
- fprintf oc " str %a, %a\n" dreg rd addressing a
- (* Floating-point move *)
- | Pfmov(rd, r1) ->
- fprintf oc " fmov %a, %a\n" dreg rd dreg r1
- | Pfmovimmd(rd, f) ->
- let d = camlint64_of_coqint (Floats.Float.to_bits f) in
- if is_immediate_float64 d then
- fprintf oc " fmov %a, #%.7f\n" dreg rd (Int64.float_of_bits d)
- else begin
- let lbl = label_literal64 d in
- fprintf oc " adrp x16, %a\n" label_high lbl;
- fprintf oc " ldr %a, [x16, %a] %s %.18g\n" dreg rd label_low lbl comment (Int64.float_of_bits d)
- end
- | Pfmovimms(rd, f) ->
- let d = camlint_of_coqint (Floats.Float32.to_bits f) in
- if is_immediate_float32 d then
- fprintf oc " fmov %a, #%.7f\n" sreg rd (Int32.float_of_bits d)
- else begin
- let lbl = label_literal32 d in
- fprintf oc " adrp x16, %a\n" label_high lbl;
- fprintf oc " ldr %a, [x16, %a] %s %.18g\n" sreg rd label_low lbl comment (Int32.float_of_bits d)
- end
- | Pfmovi(D, rd, r1) ->
- fprintf oc " fmov %a, %a\n" dreg rd xreg0 r1
- | Pfmovi(S, rd, r1) ->
- fprintf oc " fmov %a, %a\n" sreg rd wreg0 r1
- (* Floating-point conversions *)
- | Pfcvtds(rd, r1) ->
- fprintf oc " fcvt %a, %a\n" dreg rd sreg r1
- | Pfcvtsd(rd, r1) ->
- fprintf oc " fcvt %a, %a\n" sreg rd dreg r1
- | Pfcvtzs(isz, fsz, rd, r1) ->
- fprintf oc " fcvtzs %a, %a\n" ireg (isz, rd) freg (fsz, r1)
- | Pfcvtzu(isz, fsz, rd, r1) ->
- fprintf oc " fcvtzu %a, %a\n" ireg (isz, rd) freg (fsz, r1)
- | Pscvtf(fsz, isz, rd, r1) ->
- fprintf oc " scvtf %a, %a\n" freg (fsz, rd) ireg (isz, r1)
- | Pucvtf(fsz, isz, rd, r1) ->
- fprintf oc " ucvtf %a, %a\n" freg (fsz, rd) ireg (isz, r1)
- (* Floating-point arithmetic *)
- | Pfabs(sz, rd, r1) ->
- fprintf oc " fabs %a, %a\n" freg (sz, rd) freg (sz, r1)
- | Pfneg(sz, rd, r1) ->
- fprintf oc " fneg %a, %a\n" freg (sz, rd) freg (sz, r1)
- | Pfsqrt(sz, rd, r1) ->
- fprintf oc " fsqrt %a, %a\n" freg (sz, rd) freg (sz, r1)
- | Pfadd(sz, rd, r1, r2) ->
- fprintf oc " fadd %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- | Pfdiv(sz, rd, r1, r2) ->
- fprintf oc " fdiv %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- | Pfmul(sz, rd, r1, r2) ->
- fprintf oc " fmul %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- | Pfnmul(sz, rd, r1, r2) ->
- fprintf oc " fnmul %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- | Pfsub(sz, rd, r1, r2) ->
- fprintf oc " fsub %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- | Pfmadd(sz, rd, r1, r2, r3) ->
- fprintf oc " fmadd %a, %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2) freg (sz, r3)
- | Pfmsub(sz, rd, r1, r2, r3) ->
- fprintf oc " fmsub %a, %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2) freg (sz, r3)
- | Pfnmadd(sz, rd, r1, r2, r3) ->
- fprintf oc " fnmadd %a, %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2) freg (sz, r3)
- | Pfnmsub(sz, rd, r1, r2, r3) ->
- fprintf oc " fnmsub %a, %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2) freg (sz, r3)
- | Pfmax (sz, rd, r1, r2) ->
- fprintf oc " fmax %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- | Pfmin (sz, rd, r1, r2) ->
- fprintf oc " fmin %a, %a, %a\n" freg (sz, rd) freg (sz, r1) freg (sz, r2)
- (* Floating-point comparison *)
- | Pfcmp(sz, r1, r2) ->
- fprintf oc " fcmp %a, %a\n" freg (sz, r1) freg (sz, r2)
- | Pfcmp0(sz, r1) ->
- fprintf oc " fcmp %a, #0.0\n" freg (sz, r1)
- (* Floating-point conditional select *)
- | Pfsel(rd, r1, r2, c) ->
- fprintf oc " fcsel %a, %a, %a, %s\n" dreg rd dreg r1 dreg r2 (condition_name c)
- (* No-op *)
- | Pnop ->
- fprintf oc " nop\n"
- (* Pseudo-instructions expanded in Asmexpand *)
- | Pallocframe(sz, linkofs) -> assert false
- | Pfreeframe(sz, linkofs) -> assert false
- | Pcvtx2w rd -> assert false
- (* Pseudo-instructions not yet expanded *)
- | Plabel lbl ->
- fprintf oc "%a:\n" print_label lbl
- | Ploadsymbol(rd, id) ->
- load_symbol_address oc rd id
- | Pcvtsw2x(rd, r1) ->
- fprintf oc " sxtw %a, %a\n" xreg rd wreg r1
- | Pcvtuw2x(rd, r1) ->
- fprintf oc " uxtw %a, %a\n" xreg rd wreg r1
- | Pbtbl(r1, tbl) ->
- let lbl = new_label() in
- fprintf oc " adr x16, %a\n" label lbl;
- fprintf oc " add x16, x16, %a, uxtw #2\n" wreg r1;
- fprintf oc " br x16\n";
- fprintf oc "%a:" label lbl;
- List.iter (fun l -> fprintf oc " b %a\n" print_label l) tbl
- | Pcfi_adjust sz ->
- cfi_adjust oc (camlint_of_coqint sz)
- | Pcfi_rel_offset ofs ->
- cfi_rel_offset oc "lr" (camlint_of_coqint ofs)
- | Pbuiltin(ef, args, res) ->
- begin match ef with
- | EF_annot(kind,txt, targs) ->
- begin match (P.to_int kind) with
- | 1 -> let annot = annot_text preg_annot "sp" (camlstring_of_coqstring txt) args in
- fprintf oc "%s annotation: %S\n" comment annot
- | 2 -> let lbl = new_label () in
- fprintf oc "%a:\n" label lbl;
- add_ais_annot lbl preg_annot "sp" (camlstring_of_coqstring txt) args
- | _ -> assert false
- end
- | EF_debug(kind, txt, targs) ->
- print_debug_info comment print_file_line preg_annot "sp" oc
- (P.to_int kind) (extern_atom txt) args
- | EF_inline_asm(txt, sg, clob) ->
- fprintf oc "%s begin inline assembly\n\t" comment;
- print_inline_asm preg_asm oc (camlstring_of_coqstring txt) sg args res;
- fprintf oc "%s end inline assembly\n" comment
- | _ ->
- assert false
- end
-
- let get_section_names name =
- let (text, lit) =
- match C2C.atom_sections name with
- | t :: l :: _ -> (t, l)
- | _ -> (Section_text, Section_literal) in
- text,lit,Section_jumptable
-
- let print_align oc alignment =
- fprintf oc " .balign %d\n" alignment
-
- let print_jumptable oc jmptbl =
- let print_tbl oc (lbl, tbl) =
- fprintf oc "%a:\n" label lbl;
- List.iter
- (fun l -> fprintf oc " .long %a - %a\n"
- print_label l label lbl)
- tbl in
- if !jumptables <> [] then
- begin
- section oc jmptbl;
- fprintf oc " .balign 4\n";
- List.iter (print_tbl oc) !jumptables;
- jumptables := []
- end
-
- let print_optional_fun_info _ = ()
-
- let print_comm_symb oc sz name align =
- if C2C.atom_is_static name
- then print_lcomm_decl oc name sz align
- else print_comm_decl oc name sz align
-
- let print_instructions oc fn =
- current_function_sig := fn.fn_sig;
- List.iter (print_instruction oc) fn.fn_code
-
-(* Data *)
-
- let address = ".quad"
-
- let print_prologue oc =
- if !Clflags.option_g then begin
- section oc Section_text;
- end
-
- let print_epilogue oc =
- if !Clflags.option_g then begin
- Debug.compute_gnu_file_enum (fun f -> ignore (print_file oc f));
- section oc Section_text;
- end
-
- let default_falignment = 4
-
- let cfi_startproc oc = ()
- let cfi_endproc oc = ()
-
- end
-
-let sel_target () =
- let module S =
- (val (match Configuration.system with
- | "linux" -> (module ELF_System : SYSTEM)
- | "macos" -> (module MacOS_System : SYSTEM)
- | _ -> invalid_arg ("System " ^ Configuration.system ^ " not supported"))
- : SYSTEM) in
- (module Target(S) : TARGET)
generated by cgit (git 2.34.1) at 2024-06-03 01:41:31 +0000