| Commit message (Collapse) | Author | Age |
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The greatest danger of OCaml's polymorphic equality is that PMP can
replace it with pointer equality at any time, be warned :)
The lack of optimization may account for an exponential blow-up in size
of the generated code, as well as worse runtime performance.
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Spotted by PMP.
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This fixes #3450 and probably provides a huge speed-up to many instances.
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In coqtop, one could do for instance:
Require Import Top. (* Where Top contains a Definition b := true *)
Lemma bE : b = true. Proof. reflexivity. Qed.
Definition b := false.
Lemma bad : False. Proof. generalize bE; compute; discriminate. Qed.
That proof could however not be saved because of the circular dependency check.
Safe_typing now checks that we are not requiring (Safe_typing.import) a library
with the same logical name as the current one.
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Because refreshing Prop is not semantics-preserving,
the new universe is >= Set, so cannot be minimized to Prop
afterwards.
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For the moment, there is a Closure module in compiler-libs/ocamloptcomp.cm(x)a
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module)
For the moment, there is an Error module in compilers-lib/ocamlbytecomp.cm(x)a
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This is a reimplementation of Hugo's PR#117.
We are trying to address the problem that the name of some reduction functions
was not saying what they were doing (e.g. whd_betadeltaiota was doing let-in
reduction). Like PR#117, we are careful that no function changed semantics
without changing the names. Porting existing ML code should be a matter of
renamings a few function calls.
Also, we introduce more precise reduction flags fMATCH, fFIX, fCOFIX
collectively denominated iota.
We renamed the following functions:
Closure.betadeltaiota -> Closure.all
Closure.betadeltaiotanolet -> Closure.allnolet
Reductionops.beta -> Closure.beta
Reductionops.zeta -> Closure.zeta
Reductionops.betaiota -> Closure.betaiota
Reductionops.betaiotazeta -> Closure.betaiotazeta
Reductionops.delta -> Closure.delta
Reductionops.betalet -> Closure.betazeta
Reductionops.betadelta -> Closure.betadeltazeta
Reductionops.betadeltaiota -> Closure.all
Reductionops.betadeltaiotanolet -> Closure.allnolet
Closure.no_red -> Closure.nored
Reductionops.nored -> Closure.nored
Reductionops.nf_betadeltaiota -> Reductionops.nf_all
Reductionops.whd_betadelta -> Reductionops.whd_betadeltazeta
Reductionops.whd_betadeltaiota -> Reductionops.whd_all
Reductionops.whd_betadeltaiota_nolet -> Reductionops.whd_allnolet
Reductionops.whd_betadelta_stack -> Reductionops.whd_betadeltazeta_stack
Reductionops.whd_betadeltaiota_stack -> Reductionops.whd_all_stack
Reductionops.whd_betadeltaiota_nolet_stack -> Reductionops.whd_allnolet_stack
Reductionops.whd_betadelta_state -> Reductionops.whd_betadeltazeta_state
Reductionops.whd_betadeltaiota_state -> Reductionops.whd_all_state
Reductionops.whd_betadeltaiota_nolet_state -> Reductionops.whd_allnolet_state
Reductionops.whd_eta -> Reductionops.shrink_eta
Tacmach.pf_whd_betadeltaiota -> Tacmach.pf_whd_all
Tacmach.New.pf_whd_betadeltaiota -> Tacmach.New.pf_whd_all
And removed the following ones:
Reductionops.whd_betaetalet
Reductionops.whd_betaetalet_stack
Reductionops.whd_betaetalet_state
Reductionops.whd_betadeltaeta_stack
Reductionops.whd_betadeltaeta_state
Reductionops.whd_betadeltaeta
Reductionops.whd_betadeltaiotaeta_stack
Reductionops.whd_betadeltaiotaeta_state
Reductionops.whd_betadeltaiotaeta
They were unused and having some reduction functions perform eta is confusing
as whd_all and nf_all don't do it.
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On the user side, coqtop and coqc take a list of warning names or categories
after -w. No prefix means activate the warning, a "-" prefix means deactivate
it, and "+" means turn the warning into an error. Special categories include
"all", and "default" which contains the warnings enabled by default.
We also provide a vernacular Set Warnings which takes the same flags as argument.
Note that coqc now prints warnings.
The name and category of a warning are printed with the warning itself.
On the developer side, Feedback.msg_warning is still accessible, but the
recommended way to print a warning is in two steps:
1) create it by:
let warn_my_warning =
CWarnings.create ~name:"my-warning" ~category:"my-category"
(fun args -> Pp.strbrk ...)
2) print it by:
warn_my_warning args
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Fix bug in Shrink obligations with Program in the process.
Fix implementation of shrink for abstract proofs
- Update doc in term.mli to reflect the fact that let-in's
are part of what is returned by [decompose_lam_assum].
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This is a first step to relay location info in an uniform way, as needed
by warnings and other mechanisms.
The location info remains unused for now, but coqtop printing could take
advantage of it if so wished.
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above it.
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This allows a smooth addition of various unsafe flags without wreaking
havoc in the ML codebase.
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The rational is that
1. further typing flags may be available in the future
2. it makes it easier to trace and document the argument
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This breaks compilation via ocamlbuild, and also leads to awkward
commands via make
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If the second allocation causes a collection of the minor heap, the first
allocation will be freed, thus causing a memory corruption.
Note: it only happens when computing the native projection of an opaque
value while the minor heap is almost full.
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This patch splits pretty printing representation from IO operations.
- `Pp` is kept in charge of the abstract pretty printing representation.
- The `Feedback` module provides interface for doing printing IO.
The patch continues work initiated for 8.5 and has the following effects:
- The following functions in `Pp`: `pp`, `ppnl`, `pperr`, `pperrnl`,
`pperr_flush`, `pp_flush`, `flush_all`, `msg`, `msgnl`, `msgerr`,
`msgerrnl`, `message` are removed. `Feedback.msg_*` functions must be
used instead.
- Feedback provides different backends to handle output, currently,
`stdout`, `emacs` and CoqIDE backends are provided.
- Clients cannot specify flush policy anymore, thus `pp_flush` et al are
gone.
- `Feedback.feedback` takes an `edit_or_state_id` instead of the old
mix.
Lightly tested: Test-suite passes, Proof General and CoqIDE seem to work.
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not considering conversion of constants over their canonical name but
on their user name. This is observable when delta is off.
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in file indtypes.ml so that it is easier to follow what the code is
doing.
This is a purely alpha-renaming commit (if no mistakes).
Note: was submitted as pull request #116.
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We now assume an int64 type is provided by the C compiler.
The emulation file was already not compiling, so it is probably not used even
on exotic architectures. These files come from OCaml, where they are no longer
used either.
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hash-consing, so as to avoid having too many kinds of equalities with
same name.
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constant/inductive/constructor kernel_name pairs rather than viewing
them from only the user or canonical part.
Hopefully more uniformity in Constr.hasheq (using systematically == on
subterms).
A semantic change: Cooking now indexing again on full pairs of kernel
names rather than only on the canonical names, so as to preserve user
name.
Also, in pair of kernel names, ensuring the compact representation is
used as soon as both names are the same.
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E.g., Inductive foo := mkFoo { bla : foo } allowed to define recursive
records with eta for which conversion is incomplete.
- Eta-conversion only applies to BiFinite inductives
- Finiteness information is now checked by the kernel (the constructor types
must be strictly non recursive for BiFinite declarations).
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Modules inserted into the environment were not hashconsed, leading to an
important redundancy, especially in module signatures that are always fully
expanded.
This patch divides by two the size and memory consumption of module-heavy
files by hashconsing modules before putting them in the environment. Note
that this is not a real hashconsing, in the sense that we only hashcons the
inner terms contained in the modules, that are only mapped over. Compilation
time should globally decrease, even though some files definining a lot of
modules may see their compilation time increase.
Some remaining overhead may persist, as for instance module inclusion is not
hashconsed.
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primitive projections and prop. ext. or univalence, but at least it prevents
known proofs of false (see discussion on #4588).
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Fixes compilation of Coq with OCaml 4.03 beta 1.
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Two new (trivial) functions were added:
Names.Name.is_anonymous : Names.Name.t -> bool
Names.Name.is_name : Names.Name.t -> bool
They enable us to write a more compact code.
(example: commit "99633f4" in "relation-extraction" module of "coq-contribs").
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Pierre-Marie Pédrot
Maxime Dénès
Guillaume Melquiond
Matthieu Sozeau
Matthieu Sozeau
Pierre Letouzey
Emilio Jesus Gallego Arias
Arnaud Spiwack
Hugo Herbelin
Matej Kosik