Probably makes no difference right now, since these internal functons
rarely show up in the process of optimizing user programs, but just in
case.
original commit: b54a288b31731368dbcf57c95b78f0a162c29147
Can't simply use a continuation reified by an attachment
operation, because it is probably a 1-shot continuation
that needs to be promoted.
original commit: 8201aff06df8011ffbc41f217d50e4c430d75bb5
Effectively, change a `call/cc` call to `let/cc` when it appears in
the tail position of a function. This change takes advantage of
continuation-reification support that was built for continuation
attachments.
original commit: 4c015a5b55f7d04839a0efd8e5554fc237e4663b
The MRG32k3a generator is fast when using unboxed floating-point
arithemtic. Since the Scheme compiler doesn't yet support that,
build MRG32k3a into the kernel and provide access via
`pseudo-random-generator` functions.
original commit: 3dd74679a6c2705440488d8c07c47852eb50a94b
If normal 1-shot continuations are mixed with opportunistic 1-shot
continuations created by `call-setting-continuation-attachment`, then
promoting an opportunistic 1-shot at a GC is wrong unless the whole
chain is promoted.
original commit: 2dfac475666763b60935e382386af4438f3029e0
Include an extra part in the Chez Scheme version number, which both
helps indicates the Racket fork and versions it.
original commit: 00678e29bb9f05de2ccaec8585126e967cdcc6f4
Also, rename `call-with-current-continuation-attachment` to
`call-getting-continuation-attachment`.
original commit: e2a00e6d641b92918c4911c27ba14949748fd291
Add a shortcut check when refiying the continuation frame in tail
position, which is significantly cheaper when the frame is already
there. We pay down the check by skipping an attachment-lists check
that is not needed if the frame is newly reified.
Aslo, add a one-shot continuation-frame cache, which makes a shallow
temporary attachment cheaper, as in
(let loop ([i N])
(if (zero? i)
0
(loop (call-setting-continuation-attachment
i
(lambda ()
(f (sub1 i)))))))
The cache is just one frame. Keeping a chain of allocated-by-not-GCed
frames doesn't pay off.
Meanwhile, remove the leftover `$shift-attachment` library entry.
original commit: 1f454f536b1d7efe20fe9e793cda31e54e31e5f4
... and eq-hashtable-cell and symbol-hashtable-ref-cell,
which are just like hashtable-cell, except that if the given
key isn't present, they return #f instead of mutating the table.
original commit: c1ab89fc2152ba41f50c0a5b0e5857fc48fc63c1
Previously it was using #!/bin/bash as its interpreter. It is not
compatible with FreeBSD because bash is not installed by default.
The update-revision script is #!/bin/sh compatible and there are
other examples of #!/bin/sh scripts in the codebase so the change
is consistent with them.
original commit: 0ad188cdbd618b369e7fe6d2b9446251fe92e891
Avoid tripping into +nan.0 by using 0 instead of 0.0
for the imaginary part of a real number and by using
`atan` with two arguments instead of one.
original commit: e3f499adfbcbe94726fe11869ca23176fa2c3b78
Correct the case that converting the second argument to an inexact
numbe produces an integer by losing precision.
original commit: 467db7fa1f1d068e9bad250b93044d157cd3806d
The `(cdr tc-ptr-offsets)` in the recrusrion was wrong, but use
`thread->objects` and `thread->stack-objects` to work more generally.
original commit: fd620699dc620d3d1a522800a7dfaff6cc0393bb
Use OSSP UUID on {Free,Open}BSD and native UUID on NetBSD.
Building on OpenBSD requires a filesystem mounted with wxneeded.
original commit: e964d7d01a6d115e469c01626896b683d421d599
@gus-massa's adjustments to the Racket test suite exposed more places
where the "primdata.ss" spec was wrong.
original commit: 5cb4996c7b317307299e8dd55a25e8e58144a30e
It fails when the argument is +inf.0, so it's not possible to make it unsafe
automatically when the argument is a number.
original commit: 4d31d65b0e685adca7c01973cf7f30e716356a6b
