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flambda_backend_args.ml
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(**************************************************************************)
(* *)
(* OCaml *)
(* *)
(* Pierre Chambart, OCamlPro *)
(* Mark Shinwell and Leo White, Jane Street Europe *)
(* *)
(* Copyright 2013--2021 OCamlPro SAS *)
(* Copyright 2014--2021 Jane Street Group LLC *)
(* *)
(* All rights reserved. This file is distributed under the terms of *)
(* the GNU Lesser General Public License version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
let format_default flag = if flag then " (default)" else ""
let format_not_default flag = if flag then "" else " (default)"
let mk_flambda2_debug f =
"-flambda2-debug", Arg.Unit f, " Enable debug output for the Flambda2 pass"
let mk_no_flambda2_debug f =
"-no-flambda2-debug", Arg.Unit f, " Disable debug output for the Flambda2 pass"
let mk_no_mach_ir f =
"-no-mach-ir", Arg.Unit f, " Avoid using the Mach IR (kept temporarily only for backward compatibility, has no effects)"
let mk_ocamlcfg f =
"-ocamlcfg", Arg.Unit f, " Use ocamlcfg"
let mk_no_ocamlcfg f =
"-no-ocamlcfg", Arg.Unit f, " Do not use ocamlcfg"
;;
let mk_dcfg f =
"-dcfg", Arg.Unit f, " (undocumented)"
;;
let mk_dcfg_invariants f =
"-dcfg-invariants", Arg.Unit f, " Extra sanity checks on Cfg"
let mk_regalloc f =
"-regalloc", Arg.String f, " Select the register allocator"
let mk_regalloc_param f =
"-regalloc-param", Arg.String f, " Pass a parameter to the register allocator"
let mk_regalloc_validate f =
"-regalloc-validate", Arg.Unit f, " Validate register allocation"
let mk_no_regalloc_validate f =
"-no-regalloc-validate", Arg.Unit f, " Do not validate register allocation"
let mk_vectorize f =
"-vectorize", Arg.Unit f, " Enable vectorizer (EXPERIMENTAL)"
let mk_no_vectorize f =
"-no-vectorize", Arg.Unit f, " Disable vectorizer (EXPERIMENTAL)"
let mk_vectorize_max_block_size f =
"-vectorize-max-block-size", Arg.Int f,
Printf.sprintf "<n> Only CFG block with at most n IR instructions will be vectorized \
(default %d)" Flambda_backend_flags.default_vectorize_max_block_size
let mk_dvectorize f =
"-dvectorize", Arg.Unit f, " (undocumented)"
;;
let mk_cfg_selection f =
"-cfg-selection", Arg.Unit f, " Produce CFG at selection"
let mk_no_cfg_selection f =
"-no-cfg-selection", Arg.Unit f, " Do not produce CFG at selection"
let mk_cfg_peephole_optimize f =
"-cfg-peephole-optimize", Arg.Unit f, " Apply peephole optimizations to CFG"
let mk_no_cfg_peephole_optimize f =
"-no-cfg-peephole-optimize", Arg.Unit f, " Do not apply peephole optimizations to CFG"
let mk_cfg_cse_optimize f =
"-cfg-cse-optimize", Arg.Unit f, " Apply CSE optimizations to CFG"
let mk_no_cfg_cse_optimize f =
"-no-cfg-cse-optimize", Arg.Unit f, " Do not apply CSE optimizations to CFG"
let mk_cfg_zero_alloc_checker f =
"-cfg-zero-alloc-checker", Arg.Unit f, " Apply zero_alloc checker to CFG"
let mk_no_cfg_zero_alloc_checker f =
"-no-cfg-zero-alloc-checker", Arg.Unit f, " Do not apply zero_alloc checker to CFG"
let mk_cfg_stack_checks f =
"-cfg-stack-checks", Arg.Unit f, " Insert the stack checks on the CFG representation"
let mk_no_cfg_stack_checks f =
"-no-cfg-stack-checks", Arg.Unit f, " Insert the stack checks on the linear representation"
let mk_cfg_stack_checks_threshold f =
"-cfg-stack-checks-threshold", Arg.Int f, "<n> Only CFGs with fewer than n blocks will be optimized"
let mk_cfg_eliminate_dead_trap_handlers f =
"-cfg-eliminate-dead-trap-handlers", Arg.Unit f, " Eliminate dead trap handlers"
let mk_no_cfg_eliminate_dead_trap_handlers f =
"-no-cfg-eliminate-dead-trap-handlers", Arg.Unit f, " Do not eliminate dead trap handlers"
let mk_reorder_blocks_random f =
"-reorder-blocks-random",
Arg.Int f,
Printf.sprintf "<seed> Randomly reorder basic blocks in every function, \
using the provided seed (intended for testing, off by default)."
let mk_basic_block_sections f =
if Config.function_sections then
"-basic-block-sections", Arg.Unit f,
" Emit each basic block in a separate section if target supports it. Requires \
-ocamlcfg."
else
let err () =
raise (Arg.Bad "OCaml has been configured without support for \
-function-sections which is required for -basic-block-sections")
in
"-basic-block-sections", Arg.Unit err, " (option not available)"
;;
let mk_dasm_comments f =
"-dasm-comments", Arg.Unit f, " Add comments in .s files (e.g. for DWARF)"
let mk_dno_asm_comments f =
"-dno-asm-comments", Arg.Unit f, " Do not add comments in .s files"
let mk_heap_reduction_threshold f =
"-heap-reduction-threshold",
Arg.Int f,
Printf.sprintf " Threshold (in major words, defaulting to %d) to trigger a heap reduction before code emission"
Flambda_backend_flags.default_heap_reduction_threshold
;;
let mk_zero_alloc_check f =
let annotations = Zero_alloc_annotations.Check.(List.map to_string all) in
"-zero-alloc-check", Arg.Symbol (annotations, f),
" Check that annotated functions do not allocate \
and do not have indirect calls. "^Zero_alloc_annotations.Check.doc
let mk_zero_alloc_assert f =
let annotations = Zero_alloc_annotations.Assert.(List.map to_string all) in
"-zero-alloc-assert", Arg.Symbol (annotations, f),
" Add zero_alloc annotations to all functions."^Zero_alloc_annotations.Assert.doc
let mk_dzero_alloc f =
"-dzero-alloc", Arg.Unit f, " (undocumented)"
let mk_disable_zero_alloc_checker f =
"-disable-zero-alloc-checker", Arg.Unit f,
" Conservatively assume that all functions may allocate, without checking. \
Disables computation of zero_alloc function summaries, \
unlike \"-zero-alloc-check none\" which disables checking of zero_alloc annotations)"
let mk_disable_precise_zero_alloc_checker f =
"-disable-precise-zero-alloc-checker", Arg.Unit f,
" Conservatively assume that all forward calls and mutually recursive functions may \
allocate. Disables fixed point computation of summaries for these functions. \
Intended as a temporary workaround when precise analysis is too expensive."
let mk_zero_alloc_checker_details_cutoff f =
"-zero-alloc-checker-details-cutoff", Arg.Int f,
Printf.sprintf " Do not show more than this number of error locations \
in each function that fails the check \
(default %d, negative to show all)"
(match Flambda_backend_flags.default_zero_alloc_checker_details_cutoff with
| Keep_all -> (-1)
| No_details -> 0
| At_most n -> n)
let mk_zero_alloc_checker_join f =
"-zero-alloc-checker-join", Arg.Int f,
Printf.sprintf " How many abstract paths before losing precision \
(default %d, negative to fail instead of widening, \
0 to keep all)"
(match Flambda_backend_flags.default_zero_alloc_checker_join with
| Keep_all -> 0
| Widen n -> n
| Error n -> -n)
let mk_function_layout f =
let layouts = Flambda_backend_flags.Function_layout.(List.map to_string all) in
let default = Flambda_backend_flags.Function_layout.(to_string default) in
"-function-layout", Arg.Symbol (layouts, f),
(Printf.sprintf " Order of functions in the generated assembly (default: %s)"
default)
let mk_disable_poll_insertion f =
"-disable-poll-insertion", Arg.Unit f, " Do not insert poll points"
let mk_enable_poll_insertion f =
"-enable-poll-insertion", Arg.Unit f, " Insert poll points"
let mk_long_frames f =
"-long-frames", Arg.Unit f, " Allow stack frames longer than 2^16 bytes"
let mk_no_long_frames f =
"-no-long-frames", Arg.Unit f, " Do not allow stack frames longer than 2^16 bytes"
let mk_debug_long_frames_threshold f =
"-debug-long-frames-threshold", Arg.Int f, "n debug only: set long frames threshold"
let mk_caml_apply_inline_fast_path f =
"-caml-apply-inline-fast-path", Arg.Unit f, " Inline the fast path of caml_applyN"
let mk_dump_inlining_paths f =
"-dump-inlining-paths", Arg.Unit f, " Dump inlining paths when dumping flambda2 terms"
let mk_davail f =
"-davail", Arg.Unit f, " Dump register availability information"
let mk_dranges f =
"-dranges", Arg.Unit f, " Dump results of Compute_ranges"
let mk_ddebug_invariants f =
"-ddebug-invariants", Arg.Unit f, " Run invariant checks during generation of debugging information"
let mk_internal_assembler f =
"-internal-assembler", Arg.Unit f, "Write object files directly instead of using the system assembler (x86-64 ELF only)"
let mk_gc_timings f =
"-dgc-timings", Arg.Unit f, "Output information about time spent in the GC"
module Flambda2 = Flambda_backend_flags.Flambda2
let mk_flambda2_result_types_functors_only f =
"-flambda2-result-types-functors-only", Arg.Unit f,
Printf.sprintf " Infer result types for functors (but no other\n\
\ functions)%s (Flambda 2 only)"
(format_default (
match Flambda2.Default.function_result_types with
| Functors_only -> true
| Never | All_functions -> false))
;;
let mk_flambda2_result_types_all_functions f =
"-flambda2-result-types-all-functions", Arg.Unit f,
Printf.sprintf " Infer result types for all functions\n\
\ (including functors)%s (Flambda 2 only)"
(format_default (
match Flambda2.Default.function_result_types with
| All_functions -> true
| Never | Functors_only -> false))
;;
let mk_no_flambda2_result_types f =
"-flambda2-result-types", Arg.Unit f,
Printf.sprintf " Do not infer result types for functions (or\n\
\ functors)%s (Flambda 2 only)"
(format_default (
match Flambda2.Default.function_result_types with
| Never -> true
| Functors_only | All_functions -> false))
;;
let mk_flambda2_basic_meet f =
"-flambda2-basic-meet", Arg.Unit f,
Printf.sprintf " Use a basic meet algorithm (deprecated) (Flambda 2 only)"
;;
let mk_flambda2_advanced_meet f =
"-flambda2-advanced-meet", Arg.Unit f,
Printf.sprintf " Use an advanced meet algorithm (deprecated) (Flambda 2 only)"
;;
let mk_flambda2_join_algorithm f =
"-flambda2-join-algorithm", Arg.Symbol (["binary"; "n-way"; "checked"], f),
Printf.sprintf " Select the join algorithm to use (Flambda 2 only)\n \
\ Valid values are: \n\
\ \"binary\" is the legacy binary join;\n\
\ \"n-way\" is the new n-way join;\n\
\ \"checked\" runs both algorithms and compares them (use for \
debugging)."
;;
let mk_flambda2_join_points f =
"-flambda2-join-points", Arg.Unit f,
Printf.sprintf " Propagate information from all incoming edges to a join\n\
\ point%s (Flambda 2 only)"
(format_default Flambda2.Default.join_points)
;;
let mk_no_flambda2_join_points f =
"-no-flambda2-join-points", Arg.Unit f,
Printf.sprintf " Propagate information to a join point only if there are\n\
\ zero or one incoming edge(s)%s (Flambda 2 only)"
(format_not_default Flambda2.Default.join_points)
;;
let mk_flambda2_unbox_along_intra_function_control_flow f =
"-flambda2-unbox-along-intra-function-control-flow", Arg.Unit f,
Printf.sprintf " Pass values within\n\
\ a function as unboxed where possible%s (Flambda 2 only)"
(format_default Flambda2.Default.unbox_along_intra_function_control_flow)
;;
let mk_no_flambda2_unbox_along_intra_function_control_flow f =
"-no-flambda2-unbox-along-intra-function-control-flow", Arg.Unit f,
Printf.sprintf " Pass values within\n\
\ a function in their normal representation%s (Flambda 2 only)"
(format_not_default
Flambda2.Default.unbox_along_intra_function_control_flow)
;;
let mk_flambda2_backend_cse_at_toplevel f =
"-flambda2-backend-cse-at-toplevel", Arg.Unit f,
Printf.sprintf " Apply the backend CSE pass to module\n\
\ initializers%s (Flambda 2 only)"
(format_default Flambda2.Default.backend_cse_at_toplevel)
;;
let mk_no_flambda2_backend_cse_at_toplevel f =
"-no-flambda2-backend-cse-at-toplevel", Arg.Unit f,
Printf.sprintf " Do not apply the backend CSE pass to\n\
\ module initializers%s (Flambda 2 only)"
(format_not_default Flambda2.Default.backend_cse_at_toplevel)
;;
let mk_flambda2_cse_depth f =
"-flambda2-cse-depth", Arg.Int f,
Printf.sprintf " Depth threshold for eager tracking of CSE equations\n\
\ (default %d) (Flambda 2 only)"
Flambda2.Default.cse_depth
;;
let mk_flambda2_join_depth f =
"-flambda2-join-depth", Arg.Int f,
Printf.sprintf " Depth threshold for alias expansion in join\n\
\ (default %d) (Flambda 2 only)"
Flambda2.Default.join_depth
;;
let mk_flambda2_reaper f =
"-flambda2-reaper", Arg.Unit f,
Printf.sprintf " Enable reaper pass%s (Flambda2 only)"
(format_default Flambda2.Default.enable_reaper)
;;
let mk_no_flambda2_reaper f =
"-no-flambda2-reaper", Arg.Unit f,
Printf.sprintf " Disable reaper pass%s (Flambda2 only)"
(format_not_default Flambda2.Default.enable_reaper)
;;
let mk_flambda2_expert_fallback_inlining_heuristic f =
"-flambda2-expert-fallback-inlining-heuristic", Arg.Unit f,
Printf.sprintf " Prevent inlining of functions\n\
\ whose bodies contain closures%s (Flambda 2 only)"
(format_default Flambda2.Expert.Default.fallback_inlining_heuristic)
;;
let mk_no_flambda2_expert_fallback_inlining_heuristic f =
"-no-flambda2-expert-fallback-inlining-heuristic", Arg.Unit f,
Printf.sprintf " Allow inlining of functions\n\
\ whose bodies contain closures%s (Flambda 2 only)"
(format_not_default Flambda2.Expert.Default.fallback_inlining_heuristic)
;;
let mk_flambda2_expert_inline_effects_in_cmm f =
"-flambda2-expert-inline-effects-in-cmm", Arg.Unit f,
Printf.sprintf " Allow inlining of effectful\n\
\ expressions in the produced Cmm code\n\
\ into any context%s (Flambda 2 only)"
(format_default Flambda2.Expert.Default.inline_effects_in_cmm)
;;
let mk_no_flambda2_expert_inline_effects_in_cmm f =
"-no-flambda2-expert-inline-effects-in-cmm", Arg.Unit f,
Printf.sprintf " Only allow inlining of effectful\n\
\ expressions in the produced Cmm code into\n\
\ the arguments of allocation primitives%s (Flambda 2 only)"
(format_not_default Flambda2.Expert.Default.inline_effects_in_cmm)
;;
let mk_flambda2_expert_phantom_lets f =
"-flambda2-expert-phantom-lets", Arg.Unit f,
Printf.sprintf " Generate phantom lets when -g\n\
\ is specified%s (Flambda 2 only)"
(format_default Flambda2.Expert.Default.phantom_lets)
;;
let mk_no_flambda2_expert_phantom_lets f =
"-no-flambda2-expert-phantom-lets", Arg.Unit f,
Printf.sprintf " Do not generate phantom lets even when -g\n\
\ is specified%s (Flambda 2 only)"
(format_not_default Flambda2.Expert.Default.phantom_lets)
;;
let mk_flambda2_expert_max_block_size_for_projections f =
"-flambda2-expert-max-block-size-for-projections", Arg.Int f,
Printf.sprintf " Do not simplify projections\n\
\ from blocks if the block size exceeds this value (default %s)\n\
\ (Flambda 2 only)"
(match Flambda2.Expert.Default.max_block_size_for_projections with
| None -> "not set"
| Some max -> string_of_int max)
;;
let mk_flambda2_expert_max_unboxing_depth f =
"-flambda2-expert-max-unboxing-depth", Arg.Int f,
Printf.sprintf " Do not unbox (nested) values deeper\n\
\ than this many levels (default %d) (Flambda 2 only)"
Flambda2.Expert.Default.max_unboxing_depth
;;
let mk_flambda2_expert_can_inline_recursive_functions f =
"-flambda2-expert-can-inline-recursive-functions", Arg.Unit f,
Printf.sprintf " Consider inlining\n\
\ recursive functions (default %s) (Flambda 2 only)"
(format_default Flambda2.Expert.Default.can_inline_recursive_functions)
;;
let mk_no_flambda2_expert_can_inline_recursive_functions f =
"-no-flambda2-expert-can-inline-recursive-functions", Arg.Unit f,
Printf.sprintf " Only inline recursive\n\
\ functions if forced to so do by an attribute\n\
\ (default %s) (Flambda 2 only)"
(format_not_default Flambda2.Expert.Default.can_inline_recursive_functions)
;;
let mk_flambda2_expert_max_function_simplify_run f =
"-flambda2-expert-max-function-simplify-run", Arg.Int f,
Printf.sprintf " Do not run simplification of function more\n\
\ than this (default %d) (Flambda 2 only)"
Flambda2.Expert.Default.max_function_simplify_run
;;
let mk_flambda2_expert_shorten_symbol_names f =
"-flambda2-expert-shorten-symbol-names", Arg.Unit f,
" Shorten symbol names (Flambda 2 only, set by\n\
\ default in classic mode)"
;;
let mk_no_flambda2_expert_shorten_symbol_names f =
"-no-flambda2-expert-shorten-symbol-names", Arg.Unit f,
" Do not shorten symbol names (Flambda 2 only, set by\n\
\ default except for classic mode)"
;;
let mk_flambda2_expert_cont_lifting_budget f =
"-flambda2-expert-cont-lifting-budget", Arg.Int f,
Printf.sprintf " Set the limit of extra parameters introduced\n\
\ when lifting continuations (per function)"
;;
let mk_flambda2_debug_concrete_types_only_on_canonicals f =
"-flambda2-debug-concrete-types-only-on-canonicals", Arg.Unit f,
Printf.sprintf " Check that concrete\n\
\ types are only assigned to canonical\n\
\ names%s (Flambda 2 only)"
(format_default Flambda2.Debug.Default.concrete_types_only_on_canonicals)
;;
let mk_no_flambda2_debug_concrete_types_only_on_canonicals f =
"-no-flambda2-debug-concrete-types-only-on-canonicals", Arg.Unit f,
Printf.sprintf " Do not check that\n\
\ concrete types are only assigned to canonical\n\
\ names%s (Flambda 2 only)"
(format_not_default
Flambda2.Debug.Default.concrete_types_only_on_canonicals)
;;
let mk_flambda2_debug_keep_invalid_handlers f =
"-flambda2-debug-keep-invalid-handlers", Arg.Unit f,
Printf.sprintf " Keep branches simplified\n\
\ to Invalid%s (Flambda 2 only)"
(format_default Flambda2.Debug.Default.keep_invalid_handlers)
;;
let mk_no_flambda2_debug_keep_invalid_handlers f =
"-no-flambda2-debug-keep-invalid-handlers", Arg.Unit f,
Printf.sprintf " Delete branches simplified\n\
\ to Invalid%s (Flambda 2 only)"
(format_not_default Flambda2.Debug.Default.keep_invalid_handlers)
;;
let mk_flambda2_inline_max_depth f =
"-flambda2-inline-max-depth", Arg.String f,
Printf.sprintf "<int>|<round>=<int>[,...]\n\
\ Maximum depth of search for inlining opportunities inside\n\
\ inlined functions (default %d) (Flambda 2 only)"
Flambda_backend_flags.Flambda2.Inlining.Default.default_arguments.max_depth
;;
let mk_flambda2_inline_max_rec_depth f =
"-flambda2-inline-max-rec-depth", Arg.String f,
Printf.sprintf "<int>|<round>=<int>[,...]\n\
\ Maximum depth of search for inlining opportunities inside\n\
\ inlined recursive functions (default %d) (Flambda 2 only)"
Flambda_backend_flags.Flambda2.Inlining.Default.default_arguments.
max_rec_depth
;;
let mk_flambda2_inline_cost arg descr ~default f =
Printf.sprintf "-flambda2-inline-%s-cost" arg,
Arg.String f,
Printf.sprintf "<float>|<round>=<float>[,...]\n\
\ The cost of not removing %s during inlining\n\
\ (default %.03f, higher = more costly) (Flambda 2 only)"
descr
default
;;
module Flambda2_inlining_default =
Flambda_backend_flags.Flambda2.Inlining.Default
let mk_flambda2_inline_call_cost =
mk_flambda2_inline_cost "call" "a call"
~default:Flambda2_inlining_default.default_arguments.call_cost
let mk_flambda2_inline_alloc_cost =
mk_flambda2_inline_cost "alloc" "an allocation"
~default:Flambda2_inlining_default.default_arguments.alloc_cost
let mk_flambda2_inline_prim_cost =
mk_flambda2_inline_cost "prim" "a primitive"
~default:Flambda2_inlining_default.default_arguments.prim_cost
let mk_flambda2_inline_branch_cost =
mk_flambda2_inline_cost "branch" "a conditional"
~default:Flambda2_inlining_default.default_arguments.branch_cost
let mk_flambda2_inline_indirect_call_cost =
mk_flambda2_inline_cost "indirect" "an indirect call"
~default:Flambda2_inlining_default.default_arguments.indirect_call_cost
let mk_flambda2_inline_poly_compare_cost =
mk_flambda2_inline_cost "poly-compare" "a polymorphic comparison"
~default:Flambda2_inlining_default.default_arguments.poly_compare_cost
(* CR-someday mshinwell: We should have a check that the parameters provided by
the user are sensible, e.g. small_function_size <= large_function_size. *)
let mk_flambda2_inline_small_function_size f =
"-flambda2-inline-small-function-size", Arg.String f,
Printf.sprintf "<int>|<round>=<int>[,...]\n\
\ Functions with a cost less than this will always be inlined\n\
\ unless an attribute instructs otherwise (default %d)\n\
\ (Flambda 2 only)"
Flambda2_inlining_default.default_arguments.small_function_size
;;
let mk_flambda2_inline_large_function_size f =
"-flambda2-inline-large-function-size", Arg.String f,
Printf.sprintf "<int>|<round>=<int>[,...]\n\
\ Functions with a cost greater than this will never be inlined\n\
\ unless an attribute instructs otherwise (default %d); speculative\n\
\ inlining will be disabled if equal to the small function size\n\
\ (Flambda 2 only)"
Flambda2_inlining_default.default_arguments.large_function_size
;;
let mk_flambda2_inline_threshold f =
"-flambda2-inline-threshold", Arg.String f,
Printf.sprintf "<float>|<round>=<float>[,...]\n\
\ Aggressiveness of inlining (default %.02f, higher numbers mean\n\
\ more aggressive) (Flambda 2 only)"
Flambda2_inlining_default.default_arguments.threshold
let mk_flambda2_speculative_inlining_only_if_arguments_useful f =
"-flambda2-speculative-inlining-only-if-arguments-useful", Arg.Unit f,
Printf.sprintf " Only\n\
\ perform speculative inlining if the Flambda type system has\n\
\ useful information about the argument(s) at the call site%s\n\
\ (Flambda 2 only)"
(format_default
Flambda2.Inlining.Default.speculative_inlining_only_if_arguments_useful)
let mk_no_flambda2_speculative_inlining_only_if_arguments_useful f =
"-no-flambda2-speculative-inlining-only-if-arguments-useful", Arg.Unit f,
Printf.sprintf " Ignore\n\
\ whether the Flambda type system has useful information\n\
\ about the argument(s) at the call site when performing\n\
\ speculative inlining%s (Flambda 2 only)"
(format_not_default
Flambda2.Inlining.Default.speculative_inlining_only_if_arguments_useful)
let mk_flambda2_inlining_report_bin f =
"-flambda2-inlining-report-bin", Arg.Unit f, " Write inlining report\n\
\ in binary format (Flambda 2 only)"
;;
let mk_flambda2_unicode f =
"-flambda2-unicode", Arg.Unit f, " Use Unicode output when printing\n\
\ Flambda 2 code"
;;
let mk_flambda2_kind_checks f =
"-flambda2-kind-checks", Arg.Unit f, " Perform kind checks on Flambda 2\n\
\ code (may cause fatal errors with layout-poly GADT code)"
let mk_no_flambda2_kind_checks f =
"-no-flambda2-kind-checks", Arg.Unit f, " Elide kind checks on Flambda 2\n\
\ code"
let mk_drawfexpr f =
"-drawfexpr", Arg.Unit f, " Like -drawflambda but outputs fexpr language\n\
\ (Flambda 2 only)"
;;
let mk_drawfexpr_to f =
"-drawfexpr-to", Arg.String f,
"<file> Like -drawfexpr but dumps to given file (Flambda 2 only)"
;;
let mk_dfexpr f =
"-dfexpr", Arg.Unit f, " Like -dflambda but outputs fexpr language\n\
\ (Flambda 2 only)"
;;
let mk_dfexpr_to f =
"-dfexpr-to", Arg.String f,
"<file> Like -dfexpr but dumps to given file (Flambda 2 only)"
;;
let mk_dflexpect_to f =
"-dflexpect-to", Arg.String f,
"<file> Combine -drawfexpr and -dfexpr in an .flt file (Flambda 2 only)"
;;
let mk_dslot_offsets f =
"-dslot-offsets", Arg.Unit f, " Dump closure offsets (Flambda 2 only)"
;;
let mk_dfreshen f =
"-dfreshen", Arg.Unit f, " Freshen bound names when printing (Flambda 2 only)"
;;
let mk_dflow f =
"-dflow", Arg.Unit f, " Dump debug info for the flow computation (Flambda 2 only)"
;;
let mk_dsimplify f =
"-dsimplify", Arg.Unit f, " Print Flambda 2 terms after simplify (Flambda 2 only)"
;;
let mk_dreaper f =
"-dreaper", Arg.Unit f, " Dump debug info for the reaper pass (Flambda 2 only)"
;;
module Debugging = Dwarf_flags
(* CR mshinwell: These help texts should show the default values. *)
let mk_restrict_to_upstream_dwarf f =
"-gupstream-dwarf", Arg.Unit f, " Only emit the same DWARF information as the upstream compiler"
let mk_no_restrict_to_upstream_dwarf f =
"-gno-upstream-dwarf", Arg.Unit f, " Emit potentially more DWARF information than the upstream compiler"
let mk_dwarf_inlined_frames f =
"-gdwarf-inlined-frames", Arg.Unit f, " Emit DWARF inlined frame information"
let mk_no_dwarf_inlined_frames f =
"-gno-dwarf-inlined-frames", Arg.Unit f,
" Do not emit DWARF inlined frame information"
let mk_dwarf_for_startup_file f =
"-gstartup", Arg.Unit f, " Emit potentially more DWARF information\n\
\ for the startup file than the upstream compiler\n\
\ (only takes effect with -gno-upstream-dwarf)"
let mk_no_dwarf_for_startup_file f =
"-gno-startup", Arg.Unit f, " Emit the same DWARF information for the\n\
\ startup file as the upstream compiler"
let mk_gdwarf_may_alter_codegen f =
"-gdwarf-may-alter-codegen", Arg.Unit f, " Allow code generation (and\n\
\ when finalizers may run, etc) to be altered\n\
\ in order to produce a better debugging experience"
let mk_no_gdwarf_may_alter_codegen f =
"-gno-dwarf-may-alter-codegen", Arg.Unit f, " Do not alter code\n\
\ generation when emitting debugging information"
let mk_gdwarf_max_function_complexity f =
"-gdwarf-max-function-complexity", Arg.Int f,
Format.sprintf " Maximum function\n\
\ complexity above which -gno-upstream-dwarf information\n\
\ will not be emitted, to improve compilation time (default %d)"
!Dwarf_flags.dwarf_max_function_complexity
let mk_use_cached_generic_functions f =
"-use-cached-generic-functions", Arg.Unit f, " Use the cached generated functions"
;;
let mk_cached_generic_functions_path f =
"-cached-generic-functions-path", Arg.String f,
"<file> Set the path of the cached generic functions (default to cached-generic-functions.o)"
;;
let set_long_frames_threshold n =
if n < 0 then
raise (Arg.Bad "Long frames threshold must be non-negative.");
if n > Flambda_backend_flags.max_long_frames_threshold then
raise
(Arg.Bad
(Printf.sprintf "Long frames threshold too big: 0x%x, \
must be less or equal to 0x%x" n
Flambda_backend_flags.max_long_frames_threshold));
Flambda_backend_flags.long_frames_threshold := n
let mk_symbol_visibility_protected f =
"-symbol-visibility-protected", Arg.Unit f,
" Emit global symbols with visibility STV_PROTECTED on supported systems"
;;
let mk_no_symbol_visibility_protected f =
"-no-symbol-visibility-protected", Arg.Unit f,
" Emit global symbols with visibility STV_DEFAULT"
;;
module type Flambda_backend_options = sig
val ocamlcfg : unit -> unit
val no_ocamlcfg : unit -> unit
val dump_inlining_paths : unit -> unit
val davail : unit -> unit
val dranges : unit -> unit
val ddebug_invariants : unit -> unit
val dcfg : unit -> unit
val dcfg_invariants : unit -> unit
val regalloc : string -> unit
val regalloc_param : string -> unit
val regalloc_validate : unit -> unit
val no_regalloc_validate : unit -> unit
val vectorize : unit -> unit
val no_vectorize : unit -> unit
val vectorize_max_block_size : int -> unit
val dvectorize : unit -> unit
val cfg_peephole_optimize : unit -> unit
val no_cfg_peephole_optimize : unit -> unit
val cfg_stack_checks : unit -> unit
val no_cfg_stack_checks : unit -> unit
val cfg_stack_checks_threshold : int -> unit
val cfg_eliminate_dead_trap_handlers : unit -> unit
val no_cfg_eliminate_dead_trap_handlers : unit -> unit
val reorder_blocks_random : int -> unit
val basic_block_sections : unit -> unit
val dasm_comments : unit -> unit
val dno_asm_comments : unit -> unit
val heap_reduction_threshold : int -> unit
val zero_alloc_check : string -> unit
val zero_alloc_assert : string -> unit
val dzero_alloc : unit -> unit
val disable_zero_alloc_checker : unit -> unit
val disable_precise_zero_alloc_checker : unit -> unit
val zero_alloc_checker_details_cutoff : int -> unit
val zero_alloc_checker_join : int -> unit
val function_layout : string -> unit
val disable_poll_insertion : unit -> unit
val enable_poll_insertion : unit -> unit
val symbol_visibility_protected : unit -> unit
val no_symbol_visibility_protected : unit -> unit
val long_frames : unit -> unit
val no_long_frames : unit -> unit
val long_frames_threshold : int -> unit
val caml_apply_inline_fast_path : unit -> unit
val internal_assembler : unit -> unit
val gc_timings : unit -> unit
val no_mach_ir : unit -> unit
val flambda2_debug : unit -> unit
val no_flambda2_debug : unit -> unit
val flambda2_join_points : unit -> unit
val no_flambda2_join_points : unit -> unit
val flambda2_result_types_functors_only : unit -> unit
val flambda2_result_types_all_functions : unit -> unit
val no_flambda2_result_types : unit -> unit
val flambda2_basic_meet : unit -> unit
val flambda2_advanced_meet : unit -> unit
val flambda2_join_algorithm : string -> unit
val flambda2_unbox_along_intra_function_control_flow : unit -> unit
val no_flambda2_unbox_along_intra_function_control_flow : unit -> unit
val flambda2_backend_cse_at_toplevel : unit -> unit
val no_flambda2_backend_cse_at_toplevel : unit -> unit
val flambda2_cse_depth : int -> unit
val flambda2_join_depth : int -> unit
val flambda2_reaper : unit -> unit
val no_flambda2_reaper : unit -> unit
val flambda2_expert_fallback_inlining_heuristic : unit -> unit
val no_flambda2_expert_fallback_inlining_heuristic : unit -> unit
val flambda2_expert_inline_effects_in_cmm : unit -> unit
val no_flambda2_expert_inline_effects_in_cmm : unit -> unit
val flambda2_expert_phantom_lets : unit -> unit
val no_flambda2_expert_phantom_lets : unit -> unit
val flambda2_expert_max_block_size_for_projections : int -> unit
val flambda2_expert_max_unboxing_depth : int -> unit
val flambda2_expert_can_inline_recursive_functions : unit -> unit
val no_flambda2_expert_can_inline_recursive_functions : unit -> unit
val flambda2_expert_max_function_simplify_run : int -> unit
val flambda2_expert_shorten_symbol_names : unit -> unit
val no_flambda2_expert_shorten_symbol_names : unit -> unit
val flambda2_expert_cont_lifting_budget : int -> unit
val flambda2_debug_concrete_types_only_on_canonicals : unit -> unit
val no_flambda2_debug_concrete_types_only_on_canonicals : unit -> unit
val flambda2_debug_keep_invalid_handlers : unit -> unit
val no_flambda2_debug_keep_invalid_handlers : unit -> unit
val flambda2_inline_max_depth : string -> unit
val flambda2_inline_max_rec_depth : string -> unit
val flambda2_inline_call_cost : string -> unit
val flambda2_inline_alloc_cost : string -> unit
val flambda2_inline_prim_cost : string -> unit
val flambda2_inline_branch_cost : string -> unit
val flambda2_inline_indirect_call_cost : string -> unit
val flambda2_inline_poly_compare_cost : string -> unit
val flambda2_inline_small_function_size : string -> unit
val flambda2_inline_large_function_size : string -> unit
val flambda2_inline_threshold : string -> unit
val flambda2_speculative_inlining_only_if_arguments_useful : unit -> unit
val no_flambda2_speculative_inlining_only_if_arguments_useful : unit -> unit
val flambda2_inlining_report_bin : unit -> unit
val flambda2_unicode : unit -> unit
val flambda2_kind_checks : unit -> unit
val drawfexpr : unit -> unit
val drawfexpr_to : string -> unit
val dfexpr : unit -> unit
val dfexpr_to : string -> unit
val dflexpect_to : string -> unit
val dslot_offsets : unit -> unit
val dfreshen : unit -> unit
val dflow : unit -> unit
val dsimplify : unit -> unit
val dreaper : unit -> unit
val use_cached_generic_functions : unit -> unit
val cached_generic_functions_path : string -> unit
end
module Make_flambda_backend_options (F : Flambda_backend_options) =
struct
let list2 = [
mk_dump_inlining_paths F.dump_inlining_paths;
mk_davail F.davail;
mk_dranges F.dranges;
mk_ddebug_invariants F.ddebug_invariants;
mk_ocamlcfg F.ocamlcfg;
mk_no_ocamlcfg F.no_ocamlcfg;
mk_dcfg F.dcfg;
mk_dcfg_invariants F.dcfg_invariants;
mk_regalloc F.regalloc;
mk_regalloc_param F.regalloc_param;
mk_regalloc_validate F.regalloc_validate;
mk_no_regalloc_validate F.no_regalloc_validate;
mk_vectorize F.vectorize;
mk_no_vectorize F.no_vectorize;
mk_vectorize_max_block_size F.vectorize_max_block_size;
mk_dvectorize F.dvectorize;
mk_cfg_peephole_optimize F.cfg_peephole_optimize;
mk_no_cfg_peephole_optimize F.no_cfg_peephole_optimize;
mk_cfg_stack_checks F.cfg_stack_checks;
mk_no_cfg_stack_checks F.no_cfg_stack_checks;
mk_cfg_stack_checks_threshold F.cfg_stack_checks_threshold;
mk_cfg_eliminate_dead_trap_handlers F.cfg_eliminate_dead_trap_handlers;
mk_no_cfg_eliminate_dead_trap_handlers F.no_cfg_eliminate_dead_trap_handlers;
mk_reorder_blocks_random F.reorder_blocks_random;
mk_basic_block_sections F.basic_block_sections;
mk_dasm_comments F.dasm_comments;
mk_dno_asm_comments F.dno_asm_comments;
mk_heap_reduction_threshold F.heap_reduction_threshold;
mk_zero_alloc_check F.zero_alloc_check;
mk_zero_alloc_assert F.zero_alloc_assert;
mk_dzero_alloc F.dzero_alloc;
mk_disable_zero_alloc_checker F.disable_zero_alloc_checker;
mk_disable_precise_zero_alloc_checker F.disable_precise_zero_alloc_checker;
mk_zero_alloc_checker_details_cutoff F.zero_alloc_checker_details_cutoff;
mk_zero_alloc_checker_join F.zero_alloc_checker_join;
mk_function_layout F.function_layout;
mk_disable_poll_insertion F.disable_poll_insertion;
mk_enable_poll_insertion F.enable_poll_insertion;
mk_symbol_visibility_protected F.symbol_visibility_protected;
mk_no_symbol_visibility_protected F.symbol_visibility_protected;
mk_long_frames F.long_frames;
mk_no_long_frames F.no_long_frames;
mk_debug_long_frames_threshold F.long_frames_threshold;
mk_caml_apply_inline_fast_path F.caml_apply_inline_fast_path;
mk_internal_assembler F.internal_assembler;
mk_gc_timings F.gc_timings;
mk_no_mach_ir F.no_mach_ir;
mk_flambda2_debug F.flambda2_debug;
mk_no_flambda2_debug F.no_flambda2_debug;
mk_flambda2_join_points F.flambda2_join_points;
mk_no_flambda2_join_points F.no_flambda2_join_points;
mk_flambda2_result_types_functors_only
F.flambda2_result_types_functors_only;
mk_flambda2_result_types_all_functions
F.flambda2_result_types_all_functions;
mk_no_flambda2_result_types
F.no_flambda2_result_types;
mk_flambda2_basic_meet F.flambda2_basic_meet;
mk_flambda2_advanced_meet F.flambda2_advanced_meet;
mk_flambda2_join_algorithm F.flambda2_join_algorithm;
mk_flambda2_unbox_along_intra_function_control_flow
F.flambda2_unbox_along_intra_function_control_flow;
mk_no_flambda2_unbox_along_intra_function_control_flow
F.no_flambda2_unbox_along_intra_function_control_flow;
mk_flambda2_backend_cse_at_toplevel F.flambda2_backend_cse_at_toplevel;
mk_no_flambda2_backend_cse_at_toplevel
F.no_flambda2_backend_cse_at_toplevel;
mk_flambda2_cse_depth F.flambda2_cse_depth;
mk_flambda2_join_depth F.flambda2_join_depth;
mk_flambda2_reaper F.flambda2_reaper;
mk_no_flambda2_reaper F.no_flambda2_reaper;
mk_flambda2_expert_fallback_inlining_heuristic
F.flambda2_expert_fallback_inlining_heuristic;
mk_no_flambda2_expert_fallback_inlining_heuristic
F.no_flambda2_expert_fallback_inlining_heuristic;
mk_flambda2_expert_inline_effects_in_cmm
F.flambda2_expert_inline_effects_in_cmm;
mk_no_flambda2_expert_inline_effects_in_cmm
F.no_flambda2_expert_inline_effects_in_cmm;
mk_flambda2_expert_phantom_lets
F.flambda2_expert_phantom_lets;
mk_no_flambda2_expert_phantom_lets
F.no_flambda2_expert_phantom_lets;
mk_flambda2_expert_max_block_size_for_projections
F.flambda2_expert_max_block_size_for_projections;
mk_flambda2_expert_max_unboxing_depth
F.flambda2_expert_max_unboxing_depth;
mk_flambda2_expert_can_inline_recursive_functions
F.flambda2_expert_can_inline_recursive_functions;
mk_no_flambda2_expert_can_inline_recursive_functions
F.no_flambda2_expert_can_inline_recursive_functions;
mk_flambda2_expert_max_function_simplify_run
F.flambda2_expert_max_function_simplify_run;
mk_flambda2_expert_shorten_symbol_names
F.flambda2_expert_shorten_symbol_names;
mk_no_flambda2_expert_shorten_symbol_names
F.no_flambda2_expert_shorten_symbol_names;
mk_flambda2_expert_cont_lifting_budget
F.flambda2_expert_cont_lifting_budget;
mk_flambda2_debug_concrete_types_only_on_canonicals
F.flambda2_debug_concrete_types_only_on_canonicals;
mk_no_flambda2_debug_concrete_types_only_on_canonicals
F.no_flambda2_debug_concrete_types_only_on_canonicals;
mk_flambda2_debug_keep_invalid_handlers
F.flambda2_debug_keep_invalid_handlers;
mk_no_flambda2_debug_keep_invalid_handlers
F.no_flambda2_debug_keep_invalid_handlers;
mk_flambda2_inline_max_depth F.flambda2_inline_max_depth;
mk_flambda2_inline_max_rec_depth F.flambda2_inline_max_rec_depth;
mk_flambda2_inline_alloc_cost F.flambda2_inline_alloc_cost;
mk_flambda2_inline_branch_cost F.flambda2_inline_branch_cost;
mk_flambda2_inline_call_cost F.flambda2_inline_call_cost;
mk_flambda2_inline_prim_cost F.flambda2_inline_prim_cost;
mk_flambda2_inline_indirect_call_cost F.flambda2_inline_indirect_call_cost;
mk_flambda2_inline_poly_compare_cost F.flambda2_inline_poly_compare_cost;
mk_flambda2_inline_small_function_size
F.flambda2_inline_small_function_size;
mk_flambda2_inline_large_function_size
F.flambda2_inline_large_function_size;
mk_flambda2_inline_threshold F.flambda2_inline_threshold;
mk_flambda2_speculative_inlining_only_if_arguments_useful
F.flambda2_speculative_inlining_only_if_arguments_useful;
mk_no_flambda2_speculative_inlining_only_if_arguments_useful
F.no_flambda2_speculative_inlining_only_if_arguments_useful;
mk_flambda2_inlining_report_bin F.flambda2_inlining_report_bin;
mk_flambda2_unicode F.flambda2_unicode;
mk_flambda2_kind_checks F.flambda2_kind_checks;