65 Pull requests merged by 11 people

• Pass operand types in to Wasm-to-CLIF translation

  #11030 merged Jun 13, 2025

• x64: Migrate cmpxchg{,16b} to the new assembler

  #11035 merged Jun 13, 2025

• A couple small CODEOWNERS tweaks

  #11036 merged Jun 13, 2025

• Update the wasm-tools family of crates to 1.235.0

  #11034 merged Jun 13, 2025

• x64: Migrate LockXadd to the new assembler

  #11032 merged Jun 13, 2025

• x64: Migrate xchg to the new assembler

  #11008 merged Jun 13, 2025

• ci: Use Clang on Windows

  #10890 merged Jun 13, 2025

• x64: Delete MovRR instruction variant

  #11025 merged Jun 12, 2025

• x64: Improve external assembler ergonomics

  #11029 merged Jun 12, 2025

• x64: Convert compare instructions to the new assembler

  #10836 merged Jun 12, 2025

• x64: Fix float lowering for scalar_to_vector

  #11026 merged Jun 12, 2025

• x64: convert movlhps

  #10898 merged Jun 12, 2025

• Add wildcard audit for mutatis

  #11027 merged Jun 12, 2025

• x64: Drop the REX prefix in a few more cases

  #11022 merged Jun 12, 2025

• x64: Remove MovImmM and MovRM

  #11021 merged Jun 12, 2025

• miri: Fix a new code pattern with stacked borrows

  #11019 merged Jun 11, 2025

• asm: customize Mnemonic and Display separately

  #11017 merged Jun 11, 2025

• Remove comment about component model support being WIP

  #11016 merged Jun 11, 2025

• winch: Run more spec tests

  #11013 merged Jun 11, 2025

• Remove dead callee field of vmctx

  #11014 merged Jun 11, 2025

• wasmtime: Fix rendering of Cache and CacheConfig docs

  #11015 merged Jun 11, 2025

• winch: Crank the ratchet on tests that can fail

  #10829 merged Jun 11, 2025

• Add a dummy impl of fibers for Miri

  #11009 merged Jun 11, 2025

• Execute component lifts/lowers with Miri

  #11006 merged Jun 11, 2025

• Update the wasm-tools crates to 1.234; rename {Future,Stream}Close* to {Future,Stream}Drop*

  #11005 merged Jun 10, 2025

• [34.0.0] Update release notes

  #10983 merged Jun 10, 2025

• Allow TE HTTP header

  #11002 merged Jun 10, 2025

• winch(x64): Remove stale comments and deprecated unused function

  #11004 merged Jun 10, 2025

• aarch64: Remove closure from Inst::load_constant

  #11000 merged Jun 10, 2025

• winch: Use Masm::with_scratch in ISA-agnostic code

  #10998 merged Jun 10, 2025

• x64: Migrate XmmUnaryRmRImm{,Vex} to the new assembler

  #10991 merged Jun 10, 2025

• Cranelift: or(x, C) + (-C) --> and(x, ~C)

  #10979 merged Jun 10, 2025

• Fix a Miri provenance issue in the drc collector

  #11001 merged Jun 10, 2025

• Minor updates to testing in Miri

  #10999 merged Jun 10, 2025

• stack-switching: fix continuation chain walking for backtraces

  #10992 merged Jun 10, 2025

• winch: Generalize with_scratch function

  #10997 merged Jun 10, 2025

• winch: Simplify constant handling, part 2/N

  #10989 merged Jun 9, 2025

• Cranelift: Rewrite conditional branches to unconditional traps into conditional traps during legalization

  #10988 merged Jun 9, 2025

• x64: Migrate some blend-related instructions

  #10975 merged Jun 9, 2025

• x64: generate rules to pick between SSE or AVX instructions

  #10942 merged Jun 9, 2025

• x64: Migrate push/pop to the new assembler

  #10977 merged Jun 9, 2025

• Simplify some assembly in the unwinder crate

  #10987 merged Jun 9, 2025

• Refactor component model typed host function internals

  #10984 merged Jun 9, 2025

• Disable disas tests in QEMU-emulated architectures

  #10981 merged Jun 9, 2025

• Enable clippy's redundant_field_names lint

  #10985 merged Jun 9, 2025

• x64: add comment requested in #10906

  #10986 merged Jun 9, 2025

• Cranelift: (udiv (select c A B)) => (ushr (select c log2(A) log2(B))

  #10978 merged Jun 9, 2025

• Re-enable concurrent bindings generation tests

  #10972 merged Jun 9, 2025

• cranelift: ISLE printer

  #10962 merged Jun 8, 2025

• Fix ASAN in combination with throw intrinsic

  #10974 merged Jun 7, 2025

• Cranelift(x64): Add lowering rules for conditional traps of float compares

  #10966 merged Jun 7, 2025

• Add InputFile for use with WasiCtxBuilder

  #10968 merged Jun 7, 2025

• Remove FileInputStream from public API

  #10970 merged Jun 7, 2025

• x64: Migrate more instructions shapes to the new assembler

  #10971 merged Jun 7, 2025

• Minor updates to the wasmtime-unwinder crate

  #10960 merged Jun 7, 2025

• Cranelift: factor legalizations out into smaller helper functions

  #10969 merged Jun 6, 2025

• Add a knob to wasmtime::Config and a CLI flag for GC support in the component model

  #10967 merged Jun 6, 2025

• cranelift-frontend: Refactor how variables are declared

  #10965 merged Jun 6, 2025

• More clearly flag internal crates as such

  #10963 merged Jun 6, 2025

• Cranelift: Refactor legalization such that traversal is separate from legalizing a particular instruction

  #10956 merged Jun 6, 2025

• stack-switching: update vmoffsets naming for VMHostArray

  #10964 merged Jun 6, 2025

• Enable allow_attributes_without_reason in fuzzer

  #10961 merged Jun 6, 2025

• Refactor component host/libcalls

  #10959 merged Jun 6, 2025

• x64: Migrate movddup to the new assembler

  #10958 merged Jun 6, 2025

• Update nightly used in CI

  #10957 merged Jun 6, 2025

7 Pull requests opened by 5 people

• Test out s390x inline assembly change in isolation

  #10973 opened Jun 6, 2025

• cranelift: stack-switching support

  #11003 opened Jun 10, 2025

• wasmtime-wasi-io: change blocking-write-and-flush when flush encounters closed

  #11018 opened Jun 11, 2025

• Initial component model and GC support in fused adapters

  #11020 opened Jun 11, 2025

• winch(aarch64) Run integration tests in winch-aarch64

  #11031 opened Jun 12, 2025

• x64: Migrate some no-operand instructions

  #11037 opened Jun 13, 2025

• x64: Delete the `Imm` instruction variant

  #11038 opened Jun 13, 2025

8 Issues closed by 5 people

• Cranelift: Removing irrelevant instructions changes return value on x86

  #11024 closed Jun 12, 2025

• Incorrect result of scalar_to_vector with f64x2 on x86

  #11023 closed Jun 12, 2025

• What operations will mutate Engine's internals?

  #10993 closed Jun 11, 2025

• Inconsistent error types and return codes for srem(0, 0) across architectures

  #11012 closed Jun 11, 2025

• Why does the trapped func call render the bound instance not enterable any more?

  #10995 closed Jun 11, 2025

• Cranelift: missed DCE / constant folding on wasm compiling

  #10994 closed Jun 10, 2025

• Optimize control-flow-y conditional traps into single CLIF `trapnz` instructions

  #10941 closed Jun 9, 2025

• Failed CI build for refs/heads/main

  #10980 closed Jun 9, 2025

6 Issues opened by 2 people

• Cranelift: Unexpected illegal instruction on riscv64

  #11033 opened Jun 13, 2025

• Segmentation Fault on riscv64 with opt_level=speed

  #11011 opened Jun 11, 2025

• wasi-http: Consider asserting that the `TE` header value can only be `trailers`

  #11007 opened Jun 10, 2025

• aarch64 panic with `band` at opt_level=none but runs correctly after optimization

  #10996 opened Jun 10, 2025

• riscv64: Bus error on qemu when executing `atomic_cas.i64`

  #10982 opened Jun 9, 2025

• Inconsistent result on riscv64 with `fmul`, compared to other architectures

  #10976 opened Jun 7, 2025

56 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Add intial porting of table_ops from arbitrary to mutatis

  #10924 commented on Jun 13, 2025 • 17 new comments

• Cranelift: implement "precise store traps" in presence of store-tearing hardware.

  #8221 commented on Jun 13, 2025 • 0 new comments

• cranelift/x64: Narrow `test` immediate operands

  #8421 commented on Jun 13, 2025 • 0 new comments

• refactor(cranelift-codegen): remove `OnceLock`

  #8489 commented on Jun 13, 2025 • 0 new comments

• WIP: cranelift: omit function prologue and epilogue on x64 if possible

  #8516 commented on Jun 13, 2025 • 0 new comments

• wasmtime: Remove ALL constant phis

  #8565 commented on Jun 13, 2025 • 0 new comments

• wasmtime: Consume fuel on all return paths

  #8837 commented on Jun 13, 2025 • 0 new comments

• cranelift-codegen: no_std support

  #9007 commented on Jun 13, 2025 • 0 new comments

• egraphs: Canonicalize loose inequalities to strict inequalities (2nd attempt)

  #9040 commented on Jun 13, 2025 • 0 new comments

• egraphs: transpose select on operation to operation on select when it increases sharing

  #9074 commented on Jun 13, 2025 • 0 new comments

• wasmtime: Check stack limits only on exit from wasm

  #9093 commented on Jun 13, 2025 • 0 new comments

• riscv64/x390: add *_overflow

  #9214 commented on Jun 13, 2025 • 0 new comments

• wmemcheck support for additional allocation functions and granular memory

  #9641 commented on Jun 13, 2025 • 0 new comments

• Add optional close/shutdown message to AsyncWriteStream

  #9680 commented on Jun 13, 2025 • 0 new comments

• Expose component model in C api

  #9812 commented on Jun 13, 2025 • 0 new comments

• Implement initial-cwd for wasi:cli/environment

  #9831 commented on Jun 13, 2025 • 0 new comments

• refactor: `no_std` `rustc_hash::{FxHashMap, FxHashSet}` aliases

  #9975 commented on Jun 13, 2025 • 0 new comments

• fix: `no_std` fix use without `unwind`

  #9977 commented on Jun 13, 2025 • 0 new comments

• refactor: remove `OnceLock`

  #9992 commented on Jun 13, 2025 • 0 new comments

• Add test for opening miscellaneous devices on UNIX-alikes.

  #10137 commented on Jun 13, 2025 • 0 new comments

• Support for stack switching proposal

  #10177 commented on Jun 13, 2025 • 0 new comments

• Keep Config options for disabling compiled-out features

  #10455 commented on Jun 13, 2025 • 0 new comments

• Plumb initial translation of `thread.spawn_indirect`

  #10518 commented on Jun 13, 2025 • 0 new comments

• cranelift: ISLE wrapper for constructing constants

  #10528 commented on Jun 13, 2025 • 0 new comments

• Minimal implementation of fixed size lists to enable wit-bindgen runtime tests

  #10619 commented on Jun 13, 2025 • 0 new comments

• x64: refactor the representation of `*Mem` and `*MemImm`

  #10775 commented on Jun 13, 2025 • 0 new comments

• Extend CustomCodeMemory interface allowing for using previously-mapped images

  #10865 commented on Jun 13, 2025 • 0 new comments

• Allow multiple registration of same image in the GlobalRegistry

  #10874 commented on Jun 13, 2025 • 0 new comments

• Spurious (?) CI failures on s390x

  #10000 commented on Jun 6, 2025 • 0 new comments

• `--emit-clif` files do not include function names

  #10733 commented on Jun 6, 2025 • 0 new comments

• Port divide-by-constant magic number optimizations from `simple_preopt` to ISLE mid-end

  #6049 commented on Jun 6, 2025 • 0 new comments

• Technically `&mut Instance` is not safe

  #10933 commented on Jun 6, 2025 • 0 new comments

• Update DWARF tests in CI to Ubuntu 24.04

  #9731 commented on Jun 7, 2025 • 0 new comments

• How to get control over filesystem access with `wasmtime_wasi::WasiCtxBuilder`

  #8963 commented on Jun 8, 2025 • 0 new comments

• varargs support

  #1030 commented on Jun 8, 2025 • 0 new comments

• Tracking issue: Stack switching proposal implementation status

  #10248 commented on Jun 11, 2025 • 0 new comments

• winch(aarch64): MacroAssembler completeness

  #8321 commented on Jun 12, 2025 • 0 new comments

• crates/wasi-nn/examples/classification-example diminsion mismatch

  #10867 commented on Jun 12, 2025 • 0 new comments

• Cranelift: Function call causes unexpected value changes on riscv64

  #10951 commented on Jun 13, 2025 • 0 new comments

• c-api: add wasi_config_set_stdout_pipe

  #5210 commented on Jun 13, 2025 • 0 new comments

• x64: reduce work in non-stack using leaf functions

  #5352 commented on Jun 13, 2025 • 0 new comments

• fuzzgen: Increase allowed stack space

  #5825 commented on Jun 13, 2025 • 0 new comments

• Branch folding

  #5851 commented on Jun 13, 2025 • 0 new comments

• implement "part 1" of WIT Templates

  #5934 commented on Jun 13, 2025 • 0 new comments

• Move DefaultProfiler to a separate module

  #5990 commented on Jun 13, 2025 • 0 new comments

• cranelift/egraphs: more select/bitselect optimizations

  #6214 commented on Jun 13, 2025 • 0 new comments

• Add other calling conventions to fuzzer

  #6594 commented on Jun 13, 2025 • 0 new comments

• Remove cranelift-codegen-shared

  #6773 commented on Jun 13, 2025 • 0 new comments

• Add timezone host functions.

  #6899 commented on Jun 13, 2025 • 0 new comments

• Move CLIF legalization into ISLE

  #7321 commented on Jun 13, 2025 • 0 new comments

• Fine-grained network policies

  #7705 commented on Jun 13, 2025 • 0 new comments

• add linker to wasi preview2 that accepts custom closure

  #7778 commented on Jun 13, 2025 • 0 new comments

• wasi-io: Reimplement wasi-io/poll using a Pollable trait

  #7812 commented on Jun 13, 2025 • 0 new comments

• Proof-carrying code: change range facts to be more general.

  #7965 commented on Jun 13, 2025 • 0 new comments

• Print some machinst metrics

  #8107 commented on Jun 13, 2025 • 0 new comments

• Cranelift: shrink ABIArgSlot

  #8163 commented on Jun 13, 2025 • 0 new comments