4 Commits

Author SHA1 Message Date
ringabout
94008531c1 fixes #25457; make rawAlloc support alignment (#25476)
fixes https://github.com/nim-lang/Nim/issues/25457

Small chunks allocate memory in fixed-size cells. Each cell is
positioned at exact multiples of the cell size from the chunk's data
start, which makes it much harder to support alignment

```nim
sysAssert c.size == size, "rawAlloc 6"
if c.freeList == nil:
  sysAssert(c.acc.int + smallChunkOverhead() + size <= SmallChunkSize,
            "rawAlloc 7")
  result = cast[pointer](cast[int](addr(c.data)) +% c.acc.int)
  inc(c.acc, size)
```

See also https://github.com/nim-lang/Nim/pull/12926 

While using big trunk, each allocation gets its own chunk
2026-02-11 11:33:31 +01:00
ringabout
5334dc921f fixes #22419; async/closure environment does not align local variables (#22425)
* fixes #22419; async/closure environment does not align local variables

* Apply suggestions from code review

* Update tests/align/talign.nim

Co-authored-by: Jacek Sieka <arnetheduck@gmail.com>

* apply code review

* update tests

---------

Co-authored-by: Jacek Sieka <arnetheduck@gmail.com>
2023-08-09 12:43:17 +02:00
Timothee Cour
7e1ae35195 testament: error instead of silently ignore invalid targets; remove pointless alias target vs targets; document matrix; DRY (#16343)
* testament: error instead of silently ignore invalid targets
* s/target/targets/
* fix test; refs #16344
* address comments
* Update testament/specs.nim

Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
2020-12-14 10:58:29 +01:00
Andreas Rumpf
abea80376a fixes #13122 (#13126)
* fixes #13122

* moved tests to where they belong
2020-01-13 14:11:51 +01:00