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localize them, making loop() purely a platform function.
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C: Don't print usage message and quit when called with no arguments,
as this is used for testing C output
OCaml: Fix generation of datatypes with multiple type arguments
OCaml: Generate P_cons pattern correctly
C: Fix constant propagation to not propagate letbindings with type
annotations. This behaviour could cause type errors due to how type
variables are introduced. Now we only propagate letbindings when the
type of the propagated variable is guaranteed to be the same as the
inferred type of the binding.
Tests: Add OCaml tests to the C end-to-end tests (which really
shouldn't be in test/c/ any more, something like test/compile might be
better). Currently some issues with reals there like interpreter.
Tests: Rename list.sail -> list_test.sail because ocaml doesn't want
to compile files called list.ml.
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Current pass rate is 170 out of 181. Looks like there are some issues
with rv64ua-p-lrsc.elf, rv64ua-v-lrsc.elf, and rv64uc-p-rvc.elf which
I think are caused by me not implementing parts of the RISC-V platform
correctly in C. Some of the div and mod tests also fail, which is
probably an issue with using the correct rounding.
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Also allow options to be set via a pragma in Sail files
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Revert a change to string_of_bits because it broke all the RISC-V
tests in OCaml. string_of_int (int_of_string x) is not valid because x may not
fit within an integer.
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Particularly useful when execute has been split up (e.g., on RISC-V).
Only enabled on Coq for now.
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otherwise some other parts don't work properly.
Also update RISC-V patch.
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Also required some solver fixes:
- make sure that ArithFacts are always cleared to avoid loops
- extract_properties should do the goal first because it might add extra
work to do in the hypotheses
- unfolding should come before extract_properties
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constructed when a function call, cast, or binder demands them, removing
some ambiguous corner cases.
Also
- Don't simplify nexps before printing (note that we usually end up
needing a (8 * x) / 8 lemma as a result)
- More extraction of properties in the goal
- Splitting of conditionals/matches in goals (which can occur more often
because of the new positions of build_ex in definitions)
- Try simple solving first to improve speed / reduce proof sizes / help
fill in metavariables (because manipulating the goal can interfere with
instantiating them)
- Update RISC-V patch
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and use the original ids rather than fresh ones; both to allow referring to matched ids in guards
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Add some builtins to the C sail lib.
Enable some gcc warnings.
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typing
Added a regression test as c/test/downcast_fn.sail
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constructors
Add a new printing function for debugging that recursively prints
constructor types.
Fix an interpreter bug when pattern matching on constructors with
tuple types.
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Now all we need to do is make sure the RISC-V builtins are mapped to
the correct C functions, and RISC-V in C should work
(hopefully). We're still missing some of the functions in sail.c for
the mappings so those have to be implemented.
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Requires a recent Lem version that supports generating session-qualified
imports, e.g. revision rems-project/lem@d92b077f1781765a65082c815ff363ef79499860
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Allow pat_lits rewrite to map L_unit to wildcard patterns, rather than
introducing eq_unit tests as guards.
Add a fold_function and fold_funcl functions in rewriter.ml that apply
the pattern and expression algebras to top-level functions, which
means that they correctly get applied to top-level function patterns
when they are used. Currently modifying the re-writing passes to do
this introduces some bugs which needs investigated further. The
current situation is that top-level patterns and patterns elsewhere
are often treated differently because rewrite_exp doesn't (and indeed
cannot, due to how the re-writer is structured) rewrite top level
patterns.
Fix pattern completeness check for unit literals
Fix a bug in Sail->ANF transform where blocks were always annotated
with type unit incorrectly. This caused issues in pattern literal
re-writes where the guard was a block returning a boolean. A test case
for this is added as test/c/and_block.sail.
Fix a bug caused by nested polymorphic function calls and matching in
top-level patterns. Test case is test/c/tl_poly_match.sail.
Pass location info through codegen_conversion for better error
reporting
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unnecessary problems with mappings/pat_to_exp
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