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With `--mm:arc` one gets the "implicit copy; if possible, rearrange your
program's control flow" `Performance` warnings without these `move`s.
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Per manual, `panics:on` affects _only_ `Defect`:s - thus `sysFatal`
should not redirect any other exceptions.
Also, when `sysFatal` is used in `nimPanics` mode, it should use regular
exception handling pipeline to ensure exception hooks are called
consistently for all raised defects.
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follow up https://github.com/nim-lang/Nim/pull/22851
follow up https://github.com/nim-lang/Nim/pull/22873
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At least on modern Nim `tempfiles` is not usable if the user has
https://github.com/oprypin/nim-random installed, because the compiler
picks the nimble path over the stdlib path (apparently).
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efficient than sets and reasonable for holeyenums (#22845)
fixes #22844
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Theoretical Benefits / Plans:
- Typed assembler-like language.
- Allows for a CPS transformation.
- Can replace the existing C backend by a new C backend.
- Can replace the VM.
- Can do more effective "not nil" checking and static array bounds
checking.
- Can be used instead of the DFA.
- Easily translatable to LLVM.
- Reasonably easy to produce native code from.
- Tiny memory consumption. No pointers, no cry.
**In very early stages of development.**
Todo:
- [x] Map Nim types to IR types.
- [ ] Map Nim AST to IR instructions:
- [x] Map bitsets to bitops.
- [ ] Implement string cases.
- [ ] Implement range and index checks.
- [x] Implement `default(T)` builtin.
- [x] Implement multi string concat.
- [ ] Write some analysis passes.
- [ ] Write a backend.
- [x] Integrate into the compilation pipeline.
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- Continuation of https://github.com/nim-lang/Nim/pull/22769
- See
https://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_fadvise.html
- The code was already there in `std/posix` since years ago. 3 line
diff.
---------
Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
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- `copyFile` allows to specify `bufferSize` instead of hardcoded wrong
value. Tiny diff.
# Performance
- 1200% Performance improvement.
# Check it yourself
Execute:
```bash
for i in $(seq 0 10); do
bs=$((1024*2**$i))
printf "%7s Kb\t" $bs
timeout --foreground -sINT 2 dd bs=$bs if=/dev/zero of=/dev/null 2>&1 | sed -n 's/.* \([0-9.,]* [GM]B\/s\)/\1/p'
done
```
(This script can be ported to PowerShell for Windows I guess, it works
in Windows MinGW Bash anyways).
# Stats
- Hardcoded `8192` or `8000` Kb bufferSize gives `5` GB/s.
- Setting `262144` Kb bufferSize gives `65` GB/s (script suggestion).
---------
Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
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fixes #22726
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see https://github.com/nim-lang/Nim/issues/22674
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fixes #22700
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Revert "fixes bareExcept warnings; catch specific exceptions (#21119)"
This reverts commit 9207d77848d6f5db3635ae64f3cd4972cdbe3296.
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* fixes bareExcept warnings; catch specific exceptions
* Update lib/pure/coro.nim
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strictdefs (#22458)
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* clean up gc:arc/orc in docs
* in error messages
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* wip; use strictdefs for compiler
* checkpoint
* complete the chores
* more fixes
* first phase cleanup
* Update compiler/bitsets.nim
* cleanup
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heap-use-after-free (#22386)
Prevent destruction of gFuns before callClosures
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(#22328)
* Use `int` in `digitsutils`, `dragonbox`, `schubfach`
* Fix error message
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* Fix searchExtPos so that it returns -1 when the path is not a file ext
* fix comparision expression
* Remove splitDrive from searchExtPos
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When compiling code that uses PackedSet with warnings enabled, `var ret`
in `bitincl` emits a "XDeclaredButNotUsed" warning.
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temporarily (#21390)
* use `{.push warning[BareExcept]:off.}` to override settings temporarily
* likewise, suppress expect
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var T)` (#22130)
* make destructors accept non var parameters
* define nimAllowNonVarDestructor
* add a test case and a changelog
* update documentation and error messages
* deprecate destructors taking 'var T'
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When parsing enums from strings using `genEnumCaseStmt`, `AnyEnumConv`
warnings are generated due to conversion from integer value. It seems
possible meanwhile to refer to the actual `enum` value by symbol instead
of being required to do the conversion from `ord`, even when the `enum`
is defined in a `block`.
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* Implemented with-nesting in underscoredCalls()
* Add tests for nested with
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(#21978)
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* implements: [C++] constructor pragma improvement (fix #21921)
t
* fix test so it doesnt use echo in globals
* Update compiler/ccgtypes.nim
* Update lib/std/private/dragonbox.nim
---------
Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
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* js -r defines nodejs & program result undefined if unavailable
fixes #16985, fixes #16074
* fix
* add changelog too
* minor word change
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tasks.nim: Code cleanups and support expressions that produce a value
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* isolation spec update; WIP
* wip
* docs update, WIP
* progress
* Update doc/manual.md
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* add getDataDir to std/appdirs.nim
* reuse `osappdirs.getDataDir`
* Update lib/std/appdirs.nim
---------
Co-authored-by: ringabout <43030857+ringabout@users.noreply.github.com>
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* clean up SOME pending/xxx/issue link comments
* great
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* fix #9423 distinct generics now work in vm
* fixes cpp tests
---------
Co-authored-by: Timothee Cour <timothee.cour2@gmail.com>
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* move sha1, md5 to nimble packages
* boot the compiler
* fixes tests
* build the documentation
* fixes docs
* lol, I forgot koch.nim
* add `nimHasChecksums` define
* clone checksums but maybe copying is better
* bump nimble hash
* use ChecksumsStableCommit
* fixes tests
* deprecate them
* fixes paths
* fixes koch
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refact: Remove asseertion effect hiding workaround
There was a code comment to remove after bootstrapping with `nim >= 1.4.0`.
Co-authored-by: quantimnot <quantimnot@users.noreply.github.com>
Co-authored-by: ringabout <43030857+ringabout@users.noreply.github.com>
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* fixes nightlies regression
ref https://github.com/nim-lang/Nim/pull/21659
ref https://github.com/nim-lang/nightlies/actions/runs/4727252660/jobs/8387899690
> /home/runner/work/nightlies/nightlies/nim-1.9.3/lib/std/sysrand.nim(198, 12) Error: cannot evaluate at compile time: EINTR
Because EINTR is not a const on i386
* Update lib/std/sysrand.nim
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(#21659)
* test implicitly huge set types
refs https://github.com/nim-lang/RFCs/issues/298
* oh my god
* boot at least
* don't error, fix remaining issues, no 2 len arrays
* fix runnable example
* test assuming 0..255 for int literal
* test refactor, add changelog, test
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pthreads with mingw (#21668)
* fixes #18146; disable tlsEmulation on windows; static link libwinthreads DLL
* whatever
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* int64/uint64 as bigint in JS
* fix CI
* convert to compile option
* fix lie
* smaller diff, changelog entry
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* fixes #21638; `fromJson` should supports empty objects
* complete the logic
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test removing useVersion
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