* module/language/cps.scm ($branch): Refactor to be its own CPS term
type, not relying on $continue to specify a continuation (which before
was only for the false case) or a source location. Update allllllll
callers.
* module/language/cps.scm ($primcall): Add "param" member, which will be
a constant parameter to the primcall. The idea is that constants used
by primcalls as immediates don't need to participate in optimizations
in any way -- they should not participate in CSE, have the same
lifetime as the primcall so not part of DCE either, and don't need
slot allocation. Indirecting them through a named $const binding is
complication for no benefit. This change should eventually improve
compilation time and memory usage, once we fully take advantage of it,
as the number of labels and variables will go down.
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/constructors.scm:
* module/language/cps/contification.scm:
* module/language/cps/cse.scm:
* module/language/cps/dce.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/elide-values.scm:
* module/language/cps/handle-interrupts.scm:
* module/language/cps/licm.scm:
* module/language/cps/peel-loops.scm:
* module/language/cps/prune-bailouts.scm:
* module/language/cps/prune-top-level-scopes.scm:
* module/language/cps/reify-primitives.scm:
* module/language/cps/renumber.scm:
* module/language/cps/rotate-loops.scm:
* module/language/cps/self-references.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/specialize-numbers.scm:
* module/language/cps/specialize-primcalls.scm:
* module/language/cps/split-rec.scm:
* module/language/cps/type-checks.scm:
* module/language/cps/type-fold.scm:
* module/language/cps/types.scm:
* module/language/cps/utils.scm:
* module/language/cps/verify.scm:
* module/language/tree-il/compile-cps.scm: Adapt all users.
* module/language/cps/rotate-loops.scm (rotate-loops-in-function): Don't
attempt to rotate a loop whose header is a $prompt. Fixes use of
`continue' in `while'. Thanks to Nala Ginrut for the report :)
* module/language/cps/rotate-loops.scm (rotate-loop): Instead of
restricting rotation to loops with just one exit node, restrict to
loops with just one exit successor.
