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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 INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(** Compilation options *)
(** This file collects Coq functions to query the command-line
options that influence the code generated by the verified
part of CompCert. These functions are mapped by extraction
to accessors for the flags in [Clflags.ml]. *)
(** Flag [-Os]. For instruction selection (mainly). *)
Parameter optim_for_size: unit -> bool.
(** Flag [-ffloat-const-prop]. For value analysis and constant propagation. *)
Parameter propagate_float_constants: unit -> bool.
Parameter generate_float_constants: unit -> bool.
(** For value analysis. Currently always false. *)
Parameter va_strict: unit -> bool.
(** Flag -ftailcalls. For tail call optimization. *)
Parameter optim_tailcalls: unit -> bool.
(** Flag -fconstprop. For constant propagation. *)
Parameter optim_constprop: unit -> bool.
(** Flag -fcse. For common subexpression elimination. *)
Parameter optim_CSE: unit -> bool.
(** Flag -fcse2. For DMonniaux's common subexpression elimination. *)
Parameter optim_CSE2: unit -> bool.
(** Flag -fcse3. For DMonniaux's common subexpression elimination. *)
Parameter optim_CSE3: unit -> bool.
(** Flag -fcse3-alias-analysis. For DMonniaux's common subexpression elimination. Perform a simple alias analysis. *)
Parameter optim_CSE3_alias_analysis: unit -> bool.
(** Flag -fcse3-across-calls. For DMonniaux's common subexpression elimination. Propagate information across function calls (may increase register pressure). *)
Parameter optim_CSE3_across_calls: unit -> bool.
(** Flag -fcse3-across-calls. For DMonniaux's common subexpression elimination. Propagate information across control-flow merges (may increase register pressure). *)
Parameter optim_CSE3_across_merges: unit -> bool.
(** Flag -fcse3-glb *)
Parameter optim_CSE3_glb: unit -> bool.
(** Flag -fcse3-trivial-ops. For DMonniaux's common subexpression elimination, simplify trivial operations as well. *)
Parameter optim_CSE3_trivial_ops: unit -> bool.
(** Flag -fcse3-conditions. For DMonniaux's common subexpression elimination: remove redundant conditional branches. *)
Parameter optim_CSE3_conditions: unit -> bool.
(** Flag -fmove-loop-invariants. *)
Parameter optim_move_loop_invariants: unit -> bool.
(** Flag -fredundancy. For dead code elimination. *)
Parameter optim_redundancy: unit -> bool.
(** Flag -fpostpass. Postpass scheduling for K1 architecture *)
Parameter optim_postpass: unit -> bool.
(** FIXME TEMPORARY Flag -fglobaladdrtmp. Use a temporary register for loading the address of global variables (default false) *)
Parameter optim_globaladdrtmp: unit -> bool.
(** FIXME TEMPORARY Flag -fglobaladdroffset. Fold offsets into global addresses (default false) *)
Parameter optim_globaladdroffset: unit -> bool.
(** FIXME TEMPORARY Flag -fxsaddr. Use .xs addressing mode (default true) *)
Parameter optim_xsaddr: unit -> bool.
(** FIXME TEMPORARY Flag -fcoaelesce-mem. Fuse (default true) *)
Parameter optim_coalesce_mem: unit -> bool.
(* FIXME TEMPORARY Flag -faddx. Fuse (default true) *)
Parameter optim_madd: unit -> bool.
(** FIXME TEMPORARY Flag -faddx. Fuse (default false) *)
Parameter optim_addx: unit -> bool.
(** Flag -fthumb. For the ARM back-end. *)
Parameter thumb: unit -> bool.
(** Flag -g. For insertion of debugging information. *)
Parameter debug: unit -> bool.
(** Flag -fall-loads-nontrap. Turn user loads into non trapping. *)
Parameter all_loads_nontrap: unit -> bool.
(** Flag -fforward-moves. Forward moves after CSE. *)
Parameter optim_forward_moves: unit -> bool.
(** Flag -fprofile-arcs. Add profiling logger. *)
Parameter profile_arcs : unit -> bool.
(** Flag -fbranch_probabilities. Use profiling information if available *)
Parameter branch_probabilities : unit -> bool.
(* TODO is there a more appropriate place? *)
Require Import Coqlib.
Definition time {A B: Type} (name: string) (f: A -> B) : A -> B := f.
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