* module/language/cps/effects-analysis.scm (string-ref): Remove effects
declaration, given that the primitive is exploded now.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
Add string-set!.
* libguile/vm-engine.c (string-set!): Disable opcode.
* module/language/cps/types.scm (string-ref, string-set!): Remove type
checker and inferrers for string-ref and string-set!, as both are
exploded. In the case of string-set! there are still type-check
effects in the intrinsic call but they can't be elided by the checker,
as we don't track when strings are read-only.
* module/language/tree-il/compile-cps.scm (ensure-char): New helper.
(string-set!): New primcall exploded converter.
* module/language/cps/types.scm (annotation->type):
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
Add case for string memory kinds. Remove special type and effect
inferrers for string-length.
* module/language/cps/slot-allocation.scm (compute-var-representations):
Remove string-length.
* module/language/tree-il/compile-cps.scm (ensure-string): New helper.
(string-length): Add custom converter.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
Treat add, sub, and so on as known primitives.
* libguile/vm-engine.c: Remove code for now-unused instructions.
* module/language/cps/effects-analysis.scm (&memory-kind-mask): Add
&bitmask, for the bitmask in vtables.
(annotation->memory-kind): Add 'bitmask case.
* module/language/tree-il/compile-cps.scm (ensure-struct-index-in-range):
(prepare-struct-scm-access): New helpers.
(struct-ref/immediate, struct-set!/immediate): New exploded lowering
routines.
(struct-ref, struct-set!): New lowering routines that just do a call.
(canonicalize): Remove struct-ref hack; lowering procedures will
handle it.
* module/language/tree-il/cps-primitives.scm (bytevector-length): Define
struct-set! as returning a value.
* module/language/cps/effects-analysis.scm::
* module/language/cps/reify-primitives.scm (reify-primitives):
* module/language/cps/slot-allocation.scm (compute-var-representations):
* module/language/cps/types.scm (assume-u64, assume-s64): Add primitives
that assume the range of a u64 or s64 value is within certain bounds.
This is useful when extracting e.g. a length from a 64-bit word when
you know the length is less than 2**48.
* module/language/cps/compile-bytecode.scm (compile-function): Fix
emitters for u64-set! et al.
* module/language/tree-il/compile-cps.scm (bytevector-set-converter):
New helper. Lower bytevector setters to pointer ops.
* module/language/cps/compile-bytecode.scm (compile-function): Fix
emitters for u16-ref et al.
* module/language/tree-il/compile-cps.scm (bytevector-ref-converter):
(define-bytevector-ref-converter, define-bytevector-ref-converters):
New helpers. Use to define lowerers for bv-s32-ref et al.
* module/language/tree-il/compile-cps.scm (ensure-struct): New helper.xo
(struct-vtable): New lowering procedure.
* module/language/cps/types.scm (annotation->type): Add struct.
(scm-ref/tag, scm-set!/tag): Fix to get type from annotation.
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
Add struct.
* module/language/cps/compile-bytecode.scm (compile-function): Add cases
for mutable-vector? and immutable-vector?.
* module/system/vm/assembler.scm: Export emit-mutable-vector? and
emit-immutable-vector?.
* module/language/cps/types.scm (&mutable-vector, &vector): Separate
type bits.
(&vector): New union type.
(constant-type): Constant vectors are immutable.
* module/language/cps/type-fold.scm (mutable-vector?)
(immutable-vector?): New folders.
(vector?): Add union folder.
* module/language/cps/licm.scm (loop-invariant?): Read or write effects
can be guarded by effect-free branches; prevent hoisting of these
expressions if the term isn't always reachable.
* module/system/base/optimize.scm: New module.
* module/Makefile.am (SOURCES):
* am/bootstrap.am (SOURCES): Add new module.
* module/language/tree-il/optimize.scm (tree-il-optimizations): Rename
from tree-il-default-optimization-options. Directly specify the
optimization level at which a pass should be enabled.
* module/language/cps/optimize.scm (cps-optimizations): Likewise, rename
from cps-default-optimization-options.
* module/scripts/compile.scm (%options, show-optimization-help): Adapt
to use new module.
* module/language/cps/devirtualize-integers.scm (peel-trace): Update
comment.
* module/language/cps/contification.scm (apply-contification): Update to
never contify a return of $primcall to $kreceive.
* module/language/cps/verify.scm (check-arities): Require that primcalls
continue to $kargs.
* module/language/cps/slot-allocation.scm (add-prompt-control-flow-edges):
Allow for terms that don't continue, and add them to the minimal
prompt control flow edges set.
* module/language/cps.scm ($branch): Refactor to be its own CPS term
type, not relying on $continue to specify a continuation (which before
was only for the false case) or a source location. Update allllllll
callers.
* module/language/cps/reify-primitives.scm (reify-primitives): Remove
case where $prim could continue to $kreceive; this isn't possible.
However when reifying an unknown primcall, always add a $kreceive, as
the continuation has to be $kargs.
* module/language/tree-il/compile-cps.scm (convert): Unknown primcalls
convert as calls. With this change, all primcalls should continue to
$kargs, with the exception of 'throw.
* module/language/cps/constructors.scm: Remove pass, as "list" and
"vector" are now inlined by CPS conversion, and nothing in the
optimizer reifies "list" or "vector" primcalls.
* module/language/cps/optimize.scm (optimize-higher-order-cps)
(cps-default-optimization-options):
* am/bootstrap.am:
* module/Makefile.am: Remove references to inline-constructors pass.
* module/language/cps/contification.scm (apply-contification): Inline
returns to the corresponding $kargs.
* module/language/cps/licm.scm (loop-invariant?): Remove handling of
"values" primcall, as this doesn't exist any more.
