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(* *************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Sylvain Boulmé Grenoble-INP, VERIMAG *)
(* Xavier Leroy INRIA Paris-Rocquencourt *)
(* David Monniaux CNRS, VERIMAG *)
(* Cyril Six Kalray *)
(* *)
(* Copyright Kalray. Copyright VERIMAG. All rights reserved. *)
(* This file is distributed under the terms of the INRIA *)
(* Non-Commercial License Agreement. *)
(* *)
(* *************************************************************)
(** Architecture-dependent parameters for MPPA KVX. Mostly copied from the Risc-V backend *)
Require Import ZArith List.
From Flocq Require Import Binary Bits.
Definition ptr64 := true.
Definition big_endian := false.
Definition align_int64 := 8%Z.
Definition align_float64 := 8%Z.
Definition splitlong := false.
Lemma splitlong_ptr32: splitlong = true -> ptr64 = false.
Proof.
unfold splitlong. congruence.
Qed.
(** FIXME - Check the properties below *)
(** Section 7.3: "Except when otherwise stated, if the result of a
floating-point operation is NaN, it is the canonical NaN. The
canonical NaN has a positive sign and all significand bits clear
except the MSB, a.k.a. the quiet bit."
We need to extend the [choose_binop_pl] functions to account for
this case. *)
Definition default_nan_64 := (false, iter_nat 51 _ xO xH).
Definition default_nan_32 := (false, iter_nat 22 _ xO xH).
(* Always choose the first NaN argument, if any *)
Definition choose_nan_64 (l: list (bool * positive)) : bool * positive :=
match l with nil => default_nan_64 | n :: _ => n end.
Definition choose_nan_32 (l: list (bool * positive)) : bool * positive :=
match l with nil => default_nan_32 | n :: _ => n end.
Definition fpu_returns_default_qNaN := false.
Lemma choose_nan_64_idem: forall n,
choose_nan_64 (n :: n :: nil) = choose_nan_64 (n :: nil).
Proof. auto. Qed.
Lemma choose_nan_32_idem: forall n,
choose_nan_32 (n :: n :: nil) = choose_nan_32 (n :: nil).
Proof. auto. Qed.
Definition fma_order {A: Type} (x y z: A) := (x, z, y).
Definition fma_invalid_mul_is_nan := false.
Definition float_of_single_preserves_sNaN := false.
Global Opaque ptr64 big_endian splitlong
default_nan_64 choose_nan_64
default_nan_32 choose_nan_32
fma_order fma_invalid_mul_is_nan
float_of_single_preserves_sNaN.
(** Whether to generate position-independent code or not *)
Parameter pic_code: unit -> bool.
Definition has_notrap_loads := true.
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