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monad
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(aimed at RISC-V)
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Handles the common case of a single level string append pattern in a
way designed to be friendlier to Coq etc, by generating an auxiliary
function for each pattern rather than emitting a massive nested
pattern match twice.
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When converting to A-normal form I just used the type of the then
branch of if statements to get the type of the whole if statement -
usually they'd be the same, but with flow typing one of the branches
can have a false constraint, which then allows the optimizer to fit
any integer into a 64-bit integer causing an overflow. The fix is to
correctly use the type the typechecker gives for the whole if
statement.
Also add decimal_string_of_bits to the C output.
Rename is_reftyp to is_ref_typ to be more consistent with other
is_X_typ functions in Ast_util.
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When constructing expressions, we need to provide locations for the
generated expressions to give useful error messages. However adding
these at every mk_X function in ast_util would be very verbose,
especially for complex expressions.
Add new locate_X functions (with the one for expressions simply being
called locate), which take a location and recursively apply it to
every child node, e.g.
locate (gen_loc l) (mk_exp (... (mk_exp ..., mk_exp ...)))
would mark every part of the constructed expression as being generated
from code at location l.
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(This leads to more redundant uses, but I'll tackle that later)
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- more hex_bits functions, add decimal_string_of_bits
- extra tuple unfolding in constructors
- note that variables can be redundant wildcard clauses
- update RISC-V patch
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hex_bits_N_matches_prefix
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This really demonstrates why we should switch to Typ_fn being a typ
list * typ constructor because the implementation here feels *really*
hacky with dummy Typ_tup constructors being used to enforce single
arguments for constructors.
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- hints for dotp
- handle exists separately when trying eauto to keep search depth low
- more uniform existential handling (i.e., we now handle all existentials
in the way we used to only handle existentials around atoms)
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Broke E_internal_plet on some simple existential types
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the generated pattern so re-typechecking works
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than binary
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int_of_string
This fixes e.g. problems with 64-bit bitmask immediates in ARM assembly.
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I got bored of this so I wrote a Python script to generate all of them
between 1 and 33, plus 48 and 64. It's in a comment.
We should really get around to making the typechecker work with
polymorphic mappings...
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Assigning to an uninitialized variable as the last statement in a
block is almost certainly a type, and if that occurs then the
lift_assign re-write will introduce empty blocks causing this error to
occur. Now when we see such an empty block when converting to A-normal
form we turn it into unit, and emit a warning stating that an empty
block has been found as well as the probable cause (uninitialized
variable).
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Now that Jenkins is updated to a newer version of OCaml we can finally
fix some warning with more recent versions of OCaml than 4.02.3. Also
fix a Lem test case that was failing.
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In particular, the complicated "what nexps are in scope" test can be
replaced by a simple "are the nvars in scope" check.
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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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Also allow options to be set via a pragma in Sail files
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