28 Pull requests merged by 8 people

• Publicly expose wasmtime::component::Instance::instance_pre

  #10761 merged May 9, 2025

• asm: implement write-only operands

  #10759 merged May 9, 2025

• winch(aarch64): Run wast test in CI

  #10750 merged May 9, 2025

• x64: convert more logical operations

  #10753 merged May 8, 2025

• x64: convert scalar negation instructions

  #10752 merged May 8, 2025

• asm: refactor how REX suffixes are emitted

  #10749 merged May 8, 2025

• [33.0.0] Add release notes

  #10742 merged May 8, 2025

• Backport to 33.0.0: Cranelift: update to regalloc2 0.12.2; support many return values. (#10747).

  #10748 merged May 7, 2025

• asm: refactor how REX prefixes are emitted

  #10745 merged May 7, 2025

• Cranelift: update to regalloc2 0.12.2; support many return values.

  #10747 merged May 7, 2025

• Move the GetHost trait used in bindgen! into Wasmtime

  #10746 merged May 7, 2025

• [33.0.0] Backport some fixes from main

  #10743 merged May 7, 2025

• Inline assembler-x64 generated_files in main.rs

  #10739 merged May 7, 2025

• Update to wit-bindgen 0.42

  #10737 merged May 6, 2025

• Fix a typo: see41 -> sse41

  #10736 merged May 6, 2025

• x64: convert phadd instructions

  #10734 merged May 6, 2025

• Fix another libcall popping up with simd

  #10735 merged May 6, 2025

• Refactor call ABI implementation

  #10722 merged May 6, 2025

• x64: convert some psub* instructions

  #10732 merged May 5, 2025

• Fix missing libcalls with simd float rounding

  #10699 merged May 5, 2025

• winch: Consolidate branch emission

  #10730 merged May 5, 2025

• Update wasm-tools crates

  #10731 merged May 5, 2025

• pulley: Allow disabling SIMD in the interpreter at compile-time

  #10727 merged May 5, 2025

• x64: convert more padd* instructions

  #10729 merged May 5, 2025

• x64: convert more logical vector instructions

  #10720 merged May 5, 2025

• Skip a test with threads on ASAN

  #10728 merged May 5, 2025

• Bump Wasmtime to 34.0.0

  #10726 merged May 5, 2025

• docs: update link to target Markdown rather than HTML

  #10724 merged May 3, 2025

7 Pull requests opened by 6 people

• chore: remove redundant word in comment

  #10723 opened May 3, 2025

• Initial support for vex encoding for the new assembler.

  #10754 opened May 8, 2025

• Classify Winch with Tier 1 support

  #10755 opened May 9, 2025

• [s390x] Use VCodeConstant literal pool

  #10756 opened May 9, 2025

• Add `T: 'static` to `Store<T>`

  #10760 opened May 9, 2025

• x64: convert some SSE shift instructions

  #10762 opened May 9, 2025

• winch: Implement check_stack for aarch64

  #10763 opened May 10, 2025

18 Issues closed by 3 people

• Winch support for AArch64 tough to integrate with `tests/wast.rs`

  #9566 closed May 9, 2025

• Codegen fails when exporting a function with long result type

  #10741 closed May 7, 2025

• Ability for Epoch Cancelation to Cancel Imported WASI Functions

  #9188 closed May 6, 2025

• Cranelift: The error message for the `clif-util run -v` command appears to be incorrect.

  #9684 closed May 6, 2025

• Cranelift: The clif-util run command encountered a segmentation fault

  #9683 closed May 6, 2025

• How to speed-up calls into rust

  #9686 closed May 6, 2025

• Allow `wasmtime serve` command's LogStream prefix to be customizable

  #9799 closed May 6, 2025

• Crash in macOS when using wasmtime in a Python extension

  #10099 closed May 6, 2025

• embedded support

  #7311 closed May 6, 2025

• [wasmtime_wasi_http] `wasm trap: out of bounds memory access` on second function call

  #9972 closed May 6, 2025

• Wasmtime c-api wasi questions

  #10162 closed May 6, 2025

• Wasmtime rust application crashed when debug flag is enabled

  #10138 closed May 6, 2025

• x64 New Assembler Ideas/Pain points

  #10238 closed May 6, 2025

• Conditionally remove page-alignment padding in `*.cwasm`

  #10244 closed May 6, 2025

• Cranelift: deduplicate 128-bit (and wider) VCode constants and GVN them

  #10719 closed May 6, 2025

• Winch: Wrong result with br_table to multivalue return in function

  #10613 closed May 5, 2025

• Guidance for a minimal, long‑term‑reproducible Wasmtime profile

  #10725 closed May 5, 2025

• Failed CI build for refs/heads/main

  #10721 closed May 3, 2025

6 Issues opened by 6 people

• cranelift-object: Support marking data object as used

  #10758 opened May 9, 2025

• wasmtime on Android

  #10757 opened May 9, 2025

• Winch internal error: Invalid stack pointer offset

  #10751 opened May 8, 2025

• MSVC static linking issues since v29

  #10744 opened May 7, 2025

• Regression for custom LinearMemory implementations: entered unreachable code: memory_image is Some only for mmap-based memories

  #10740 opened May 7, 2025

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

  #10733 opened May 5, 2025

53 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.

• [wasmtime CLI]: Expose component interfaces as CLI sub-commands

  #10637 commented on May 6, 2025 • 0 new comments

• Component: Unclear how to access exported resource returned by guest

  #9946 commented on May 7, 2025 • 0 new comments

• Support custom generic bounds in `#[derive(ComponentType)]` et al

  #10706 commented on May 8, 2025 • 0 new comments

• wasmtime::component::bindgen! macro generates invalid code

  #10449 commented on May 10, 2025 • 0 new comments

• fix(sockets): preopened directories first

  #3995 commented on May 10, 2025 • 0 new comments

• Out-of-band fuel metering

  #4466 commented on May 10, 2025 • 0 new comments

• Remove binary_imm64 and int_compare_imm instructions

  #4721 commented on May 10, 2025 • 0 new comments

• x86_64: align loop headers to 64 bytes

  #5004 commented on May 10, 2025 • 0 new comments

• c-api: add wasi_config_set_stdout_pipe

  #5210 commented on May 10, 2025 • 0 new comments

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

  #5352 commented on May 10, 2025 • 0 new comments

• fuzzgen: Increase allowed stack space

  #5825 commented on May 10, 2025 • 0 new comments

• Branch folding

  #5851 commented on May 10, 2025 • 0 new comments

• implement "part 1" of WIT Templates

  #5934 commented on May 10, 2025 • 0 new comments

• Move DefaultProfiler to a separate module

  #5990 commented on May 10, 2025 • 0 new comments

• cranelift/egraphs: more select/bitselect optimizations

  #6214 commented on May 10, 2025 • 0 new comments

• Add other calling conventions to fuzzer

  #6594 commented on May 10, 2025 • 0 new comments

• Remove cranelift-codegen-shared

  #6773 commented on May 10, 2025 • 0 new comments

• Add timezone host functions.

  #6899 commented on May 10, 2025 • 0 new comments

• Move CLIF legalization into ISLE

  #7321 commented on May 10, 2025 • 0 new comments

• Fine-grained network policies

  #7705 commented on May 10, 2025 • 0 new comments

• add linker to wasi preview2 that accepts custom closure

  #7778 commented on May 10, 2025 • 0 new comments

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

  #7812 commented on May 10, 2025 • 0 new comments

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

  #7965 commented on May 10, 2025 • 0 new comments

• Print some machinst metrics

  #8107 commented on May 10, 2025 • 0 new comments

• Cranelift: shrink ABIArgSlot

  #8163 commented on May 10, 2025 • 0 new comments

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

  #8221 commented on May 10, 2025 • 0 new comments

• Module creation from premapped images

  #8245 commented on May 10, 2025 • 0 new comments

• cranelift: ISLE printer

  #8263 commented on May 10, 2025 • 0 new comments

• cranelift/x64: Narrow `test` immediate operands

  #8421 commented on May 10, 2025 • 0 new comments

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

  #8489 commented on May 10, 2025 • 0 new comments

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

  #8516 commented on May 10, 2025 • 0 new comments

• wasmtime: Remove ALL constant phis

  #8565 commented on May 10, 2025 • 0 new comments

• wasmtime: Consume fuel on all return paths

  #8837 commented on May 10, 2025 • 0 new comments

• cranelift-codegen: no_std support

  #9007 commented on May 10, 2025 • 0 new comments

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

  #9040 commented on May 10, 2025 • 0 new comments

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

  #9074 commented on May 10, 2025 • 0 new comments

• wasmtime: Check stack limits only on exit from wasm

  #9093 commented on May 10, 2025 • 0 new comments

• riscv64/x390: add *_overflow

  #9214 commented on May 10, 2025 • 0 new comments

• wmemcheck support for additional allocation functions and granular memory

  #9641 commented on May 10, 2025 • 0 new comments

• Add optional close/shutdown message to AsyncWriteStream

  #9680 commented on May 10, 2025 • 0 new comments

• Expose component model in C api

  #9812 commented on May 10, 2025 • 0 new comments

• Implement initial-cwd for wasi:cli/environment

  #9831 commented on May 10, 2025 • 0 new comments

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

  #9975 commented on May 10, 2025 • 0 new comments

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

  #9977 commented on May 10, 2025 • 0 new comments

• refactor: remove `OnceLock`

  #9992 commented on May 10, 2025 • 0 new comments

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

  #10137 commented on May 10, 2025 • 0 new comments

• Support for stack switching proposal

  #10177 commented on May 10, 2025 • 0 new comments

• Stack switching: Infrastructure and runtime support

  #10388 commented on May 10, 2025 • 0 new comments

• Keep Config options for disabling compiled-out features

  #10455 commented on May 10, 2025 • 0 new comments

• Plumb initial translation of `thread.spawn_indirect`

  #10518 commented on May 10, 2025 • 0 new comments

• cranelift: ISLE wrapper for constructing constants

  #10528 commented on May 10, 2025 • 0 new comments

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

  #10619 commented on May 10, 2025 • 0 new comments

• c-api: component-model: Values and function calling

  #10697 commented on May 10, 2025 • 0 new comments