package ocaml-base-compiler

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package ocaml-base-compiler
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bind name arg fn is equivalent to let name = arg in fn name, or simply fn arg if arg is simple enough

val bind_load : string -> Cmm.expression -> (Cmm.expression -> Cmm.expression) -> Cmm.expression

Same as bind, but also treats loads from a variable as simple

val bind_nonvar : string -> Cmm.expression -> (Cmm.expression -> Cmm.expression) -> Cmm.expression

Same as bind, but does not treat variables as simple

Headers

val caml_black : nativeint

A null header with GC bits set to black

val floatarray_tag : Debuginfo.t -> Cmm.expression

A constant equal to the tag for float arrays

val block_header : int -> int -> nativeint

block_header tag size creates a header with tag tag for a block of size size

val black_block_header : int -> int -> nativeint

Same as block_header, but with GC bits set to black

val white_closure_header : int -> nativeint

Closure headers of the given size

val black_closure_header : int -> nativeint
val infix_header : int -> nativeint

Infix header at the given offset

val float_header : nativeint

Header for a boxed float value

val floatarray_header : int -> nativeint

Header for an unboxed float array of the given size

val string_header : int -> nativeint

Header for a string (or bytes) of the given length

val boxedint32_header : nativeint

Boxed integer headers

val boxedint64_header : nativeint
val boxedintnat_header : nativeint
val closure_info : arity:int -> startenv:int -> nativeint

Closure info for a closure of given arity and distance to environment

val alloc_float_header : Debuginfo.t -> Cmm.expression

Wrappers

val alloc_floatarray_header : int -> Debuginfo.t -> Cmm.expression
val alloc_closure_header : int -> Debuginfo.t -> Cmm.expression
val alloc_infix_header : int -> Debuginfo.t -> Cmm.expression
val alloc_closure_info : arity:int -> startenv:int -> Debuginfo.t -> Cmm.expression
val alloc_boxedint32_header : Debuginfo.t -> Cmm.expression
val alloc_boxedint64_header : Debuginfo.t -> Cmm.expression
val alloc_boxedintnat_header : Debuginfo.t -> Cmm.expression

Integers

val max_repr_int : int

Minimal/maximal OCaml integer values whose backend representation fits in a regular OCaml integer

val min_repr_int : int
val int_const : Debuginfo.t -> int -> Cmm.expression

Make an integer constant from the given integer (tags the integer)

val cint_const : int -> Cmm.data_item
val targetint_const : int -> Targetint.t
val natint_const_untagged : Debuginfo.t -> Nativeint.t -> Cmm.expression

Make a Cmm constant holding the given nativeint value. Uses Cconst_int instead of Cconst_nativeint when possible to preserve peephole optimisations.

val add_const : Cmm.expression -> int -> Debuginfo.t -> Cmm.expression

Add an integer to the given expression

Increment/decrement of integers

val ignore_low_bit_int : Cmm.expression -> Cmm.expression

Simplify the given expression knowing its last bit will be irrelevant

val ignore_high_bit_int : Cmm.expression -> Cmm.expression

Simplify the given expression knowing its first bit will be irrelevant

Arithmetical operations on integers

Integer tagging. tag_int x = (x lsl 1) + 1

Integer untagging. untag_int x = (x asr 1)

Specific division operations for boxed integers

If-Then-Else expression mk_if_then_else dbg cond ifso_dbg ifso ifnot_dbg ifnot associates dbg to the global if-then-else expression, ifso_dbg to the then branch ifso, and ifnot_dbg to the else branch ifnot

Boolean negation

Integer and float comparison that returns int not bool

val mk_compare_floats : Debuginfo.t -> Cmm.expression -> Cmm.expression -> Cmm.expression
val create_loop : Cmm.expression -> Debuginfo.t -> Cmm.expression

Loop construction (while true do expr done). Used to be represented as Cloop.

val raise_symbol : Debuginfo.t -> string -> Cmm.expression

Exception raising

Convert a tagged integer into a raw integer with boolean meaning

Float boxing and unboxing

val unbox_float : Debuginfo.t -> Cmm.expression -> Cmm.expression

Complex number creation and access

val return_unit : Debuginfo.t -> Cmm.expression -> Cmm.expression

Make the given expression return a unit value

val remove_unit : Cmm.expression -> Cmm.expression

Remove a trailing unit return if any

Blocks

val field_address : Cmm.expression -> int -> Debuginfo.t -> Cmm.expression

field_address ptr n dbg returns an expression for the address of the nth field of the block pointed to by ptr

get_field_gen mut ptr n dbg returns an expression for the access to the nth field of the block pointed to by ptr

set_field ptr n newval init dbg returns an expression for setting the nth field of the block pointed to by ptr to newval

Load a block's header

val get_header_without_profinfo : Cmm.expression -> Debuginfo.t -> Cmm.expression

Same as get_header, but also set all profiling bits of the header are to 0 (if profiling is enabled)

Load a block's tag

Load a block's size

Arrays

val wordsize_shift : int
val numfloat_shift : int