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AstGen: fix fuzzed bugs #35526

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gooncreeper wants to merge 3 commits from gooncreeper/zig:astgen-fuzzing-2 into master
pull from: gooncreeper/zig:astgen-fuzzing-2
merge into: ziglang:master
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Originally, this PR added a fuzz test based off AstSmith, but that has since been removed in #36094. It instead now contains just the fixes and tests for the bugs that were found.

Originally, this PR added a fuzz test based off `AstSmith`, but that has since been removed in #36094. It instead now contains just the fixes and tests for the bugs that were found.
gooncreeper force-pushed astgen-fuzzing-2 from 2d75aa7fe1
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gooncreeper force-pushed astgen-fuzzing-2 from 028a537500
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gooncreeper force-pushed astgen-fuzzing-2 from c66bb58b18
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2026年06月21日 23:35:45 +02:00 Compare
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Rebased due to conflicts

Rebased due to conflicts
gooncreeper force-pushed astgen-fuzzing-2 from 1e375faecb
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2026年07月09日 03:44:30 +02:00 Compare
gooncreeper changed title from (削除) add a fuzz test for AstGen (削除ここまで) to AstGen: fix fuzzed bugs 2026年07月09日 03:46:39 +02:00
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This issue relates to Zig's vendored libunwind.
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Zig's integrated object file and incremental linker.
miscompilation
The compiler reports success but produces semantically incorrect code.
os/android
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os/driverkit
os/emscripten
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os/haiku
os/hermit
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os/ios
os/linux
os/maccatalyst
os/macos
os/managarm
os/netbsd
os/ohos
os/openbsd
os/plan9
os/redox
os/rtems
os/serenity
os/tvos
os/uefi
os/visionos
os/wasi
os/watchos
os/windows
proposal
This issue suggests language modifications. If it also has the "accepted" label then it is planned.
release notes
This issue or pull request should be mentioned in the release notes.
testing
This issue is related to testing the compiler, standard library, or other parts of Zig.
zig cc
Zig as a drop-in C-family compiler.
zig fmt
The Zig source code formatter.
zig reduce
The Zig source code reduction tool.
bounty
https://ziglang.org/news/announcing-donor-bounties
bug
Observed behavior contradicts documented or intended behavior.
contributor-friendly
This issue is limited in scope and/or knowledge of project internals.
downstream
An issue with a third-party project that uses this project.
enhancement
Solving this issue will likely involve adding new logic or components to the codebase.
infra
An issue related to project infrastructure, e.g. continuous integration.
optimization
A task to improve performance and/or resource usage.
question
No questions on the issue tracker; use a community space instead.
regression
Something that used to work in a previous version stopped working
upstream
An issue with a third-party project that this project uses.
use case
Describes a real use case that is difficult or impossible, but does not propose a solution.
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abi/f32
abi/ilp32
abi/sf
accepted
arch/21k
arch/6502
arch/aarch64
arch/alpha
arch/amdgcn
arch/arc
arch/arc32
arch/arc64
arch/arm
arch/avr
arch/bfin
arch/bpf
arch/colossus
arch/cris
arch/csky
arch/dlx
arch/epiphany
arch/fr30
arch/frv
arch/hexagon
arch/hppa
arch/hppa64
arch/ia64
arch/kalimba
arch/kvx
arch/lanai
arch/lm32
arch/loongarch32
arch/loongarch64
arch/m32r
arch/m68k
arch/m88k
arch/mcore
arch/microblaze
arch/mips
arch/mips64
arch/mmix
arch/moxie
arch/mrisc32
arch/msp430
arch/nds32
arch/ns32k
arch/nvptx
arch/or1k
arch/powerpc
arch/powerpc64
arch/propeller
arch/riscv32
arch/riscv64
arch/rl78
arch/rx
arch/s390x
arch/sh
arch/sparc
arch/sparc64
arch/spirv
arch/spu
arch/tricore
arch/v850
arch/vax
arch/vc4
arch/ve
arch/wasm
arch/x86
arch/x86_64
arch/xcore
arch/xtensa
autodoc
backend/c
backend/llvm
backend/self-hosted
binutils
breaking
build system
debug info
docs
error message
frontend
fuzzing
incremental
lib/c
lib/compiler-rt
lib/cxx
lib/std
lib/tsan
lib/ubsan-rt
lib/unwind
linking
miscompilation
os/android
os/contiki
os/dragonfly
os/driverkit
os/emscripten
os/freebsd
os/fuchsia
os/haiku
os/hermit
os/hurd
os/illumos
os/ios
os/linux
os/maccatalyst
os/macos
os/managarm
os/netbsd
os/ohos
os/openbsd
os/plan9
os/redox
os/rtems
os/serenity
os/tvos
os/uefi
os/visionos
os/wasi
os/watchos
os/windows
proposal
release notes
testing
zig cc
zig fmt
zig reduce
bounty
bug
contributor-friendly
downstream
enhancement
infra
optimization
question
regression
upstream
use case
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Reference
ziglang/zig!35526
Reference in a new issue
ziglang/zig
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Delete branch "gooncreeper/zig:astgen-fuzzing-2"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?