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(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU Lesser General Public License as *)
(* published by the Free Software Foundation, either version 2.1 of *)
(* the License, or (at your option) any later version. *)
(* This file is also distributed under the terms of the *)
(* INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(* Processor-dependent builtin C functions *)
open C
let (va_list_type, va_list_scalar, size_va_list) =
if Archi.ptr64 then
if Archi.win64 then
(* Just a pointer *)
(TPtr(TVoid [], []), true, 8)
else
(* Actually a struct passed by reference; equivalent to 3 64-bit words *)
(TArray(TInt(IULong, []), Some 3L, []), false, 3*8)
else
(* Just a pointer *)
(TPtr(TVoid [], []), true, 4)
let builtins = {
builtin_typedefs = [
"__builtin_va_list", va_list_type;
];
builtin_functions = [
(* Float arithmetic *)
"__builtin_fmax",
(TFloat(FDouble, []), [TFloat(FDouble, []); TFloat(FDouble, [])], false);
"__builtin_fmin",
(TFloat(FDouble, []), [TFloat(FDouble, []); TFloat(FDouble, [])], false);
"__builtin_fmadd",
(TFloat(FDouble, []),
[TFloat(FDouble, []); TFloat(FDouble, []); TFloat(FDouble, [])],
false);
"__builtin_fmsub",
(TFloat(FDouble, []),
[TFloat(FDouble, []); TFloat(FDouble, []); TFloat(FDouble, [])],
false);
"__builtin_fnmadd",
(TFloat(FDouble, []),
[TFloat(FDouble, []); TFloat(FDouble, []); TFloat(FDouble, [])],
false);
"__builtin_fnmsub",
(TFloat(FDouble, []),
[TFloat(FDouble, []); TFloat(FDouble, []); TFloat(FDouble, [])],
false);
(* Memory accesses *)
"__builtin_read16_reversed",
(TInt(IUShort, []), [TPtr(TInt(IUShort, [AConst]), [])], false);
"__builtin_read32_reversed",
(TInt(IUInt, []), [TPtr(TInt(IUInt, [AConst]), [])], false);
"__builtin_write16_reversed",
(TVoid [], [TPtr(TInt(IUShort, []), []); TInt(IUShort, [])], false);
"__builtin_write32_reversed",
(TVoid [], [TPtr(TInt(IUInt, []), []); TInt(IUInt, [])], false);
]
}
(* Expand memory references inside extended asm statements. Used in C2C. *)
let asm_mem_argument arg = Printf.sprintf "0(%s)" arg
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