Add constant evaluation support for the `struct.new[_default]` Wasm GC instructions #25455

Workflow file for this run

	name: CI
	on:
	# Run CI for PRs to `main` and to release branches.
	#
	# Note that PRs to `main` will run a subset of tests and PRs to the
	# `release-*` branches will run full CI.
	pull_request:
	branches:
	- main
	- 'release-*'

	# Run full CI on the `main` branch once a day to prime the GitHub Actions
	# caches used by PRs and the merge queue.
	schedule:
	- cron: '13 4 * * *'

	# This is the CI that runs for PRs-to-merge.
	merge_group:

	push:
	branches:
	# Right now merge queues can't be used with wildcards in branch protections
	# so full CI runs both on PRs to release branches as well as merges to
	# release branches. Note that the merge to a release branch may produce a
	# tag at the end of CI if successful and the tag will trigger the artifact
	# uploads as well as publication to crates.io.
	- 'release-*'

	defaults:
	run:
	shell: bash

	# Cancel any in-flight jobs for the same PR/branch so there's only one active
	# at a time
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	# Check Code style quickly by running `rustfmt` over all code
	rustfmt:
	name: Rustfmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: rustup component add rustfmt
	- run: cargo fmt --all -- --check

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Quick JS formatting/linting checks for the little bits of JS we have for the
	# `wasmtime explore` UI.
	check_js:
	name: Check JS
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- run: npm install
	working-directory: ./crates/explorer
	- run: npm run lint
	working-directory: ./crates/explorer
	- run: npm run fmt-check
	working-directory: ./crates/explorer

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Check Code style quickly by running `clang-format` over all the C/C++ code
	#
	# Note that `wasmtime-platform.h` is excluded here as it's auto-generated.
	clangformat:
	name: Clang format
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- run: \|
	git ls-files '.h' '.c' '*.cpp' \| \
	grep -v wasmtime-platform.h \| \
	grep -v wasm.h \| \
	xargs clang-format-15 --dry-run --Werror --verbose

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Lint dependency graph for security advisories, duplicate versions, and
	# incompatible licences
	cargo_deny:
	name: Cargo deny
	needs: determine
	if: needs.determine.outputs.audit
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: \|
	set -e
	curl -L https://github.com/EmbarkStudios/cargo-deny/releases/download/0.14.5/cargo-deny-0.14.5-x86_64-unknown-linux-musl.tar.gz \| tar xzf -
	mv cargo-deny-*-x86_64-unknown-linux-musl/cargo-deny cargo-deny
	echo `pwd` >> $GITHUB_PATH
	- run: cargo deny check bans licenses

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Ensure dependencies are vetted. See https://mozilla.github.io/cargo-vet/
	#
	# Note that this step, on PRs only, is allowed to fail. This is then followed
	# up with the `cargo_vet_failure_for_prs` step below. The intention is to
	# avoid causing this check to fail PRs while still enabling it to fail the
	# merge queue checks. That way PRs can enter the merge queue when this step is
	# failing if `main` has picked up `cargo vet` entries in the meantime for the
	# failures.
	cargo_vet:
	name: Cargo vet
	needs: determine
	if: needs.determine.outputs.audit
	runs-on: ubuntu-latest
	outputs:
	outcome: ${{ steps.vet.outcome }}
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- uses: ./.github/actions/install-cargo-vet
	- id: vet
	run: cargo vet --locked
	continue-on-error: ${{ github.event_name == 'pull_request' }}

	# Double-check that if versions are bumped that `cargo vet` still works.
	# This is intended to weed out mistakes such as #9115 from happening again.
	- run: rustc scripts/publish.rs && ./publish bump-patch && cargo vet
	name: Ensure `cargo vet` works if versions are bumped

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	cargo_vet_failure_for_prs:
	name: Cargo vet failed on a Pull Request
	needs:
	- determine
	- cargo_vet
	if: \|
	needs.determine.outputs.audit
	&& github.event_name == 'pull_request'
	&& needs.cargo_vet.outputs.outcome == 'failure'
	runs-on: ubuntu-latest
	steps:
	# NB: this message ideally would link back to the previous step, but I'm not
	# sure how to easily do that.
	- run: \|
	echo 'failed to run "cargo vet", see previous `Cargo vet` step'
	echo 'exiting with a nonzero status now to alert PR authors'
	echo 'note, though, that this PR can still enter the merge queue'
	echo ''
	echo 'See https://docs.wasmtime.dev/contributing-coding-guidelines.html#cargo-vet-for-contributors'
	echo 'for more information about the vetting process for Wasmtime'
	exit 1

	# This job is a dependency of many of the jobs below. This calculates what's
	# actually being run for this workflow. For example:
	#
	# * Pushes to branches, which is currently both pushes to merge queue branches
	# as well as release branches, perform full CI.
	# * PRs to release branches (not `main`) run full CI.
	# * PRs to `main` will only run a few smoke tests above plus some elements of
	# the test matrix. The test matrix here is determined dynamically by the
	# `./ci/build-test-matrix.js` script given the commits that happened and
	# the files modified.
	determine:
	name: Determine CI jobs to run
	runs-on: ubuntu-latest
	outputs:
	run-full: ${{ steps.calculate.outputs.run-full }}
	test-matrix: ${{ steps.calculate.outputs.test-matrix }}
	build-matrix: ${{ steps.calculate.outputs.build-matrix }}
	test-capi: ${{ steps.calculate.outputs.test-capi }}
	test-nightly: ${{ steps.calculate.outputs.test-nightly }}
	audit: ${{ steps.calculate.outputs.audit }}
	preview1-adapter: ${{ steps.calculate.outputs.preview1-adapter }}
	run-dwarf: ${{ steps.calculate.outputs.run-dwarf }}
	steps:
	- uses: actions/checkout@v4
	- id: calculate
	env:
	GH_TOKEN: ${{ github.token }}
	run: \|
	touch commits.log names.log
	# Note that CI doesn't run on pushes to `main`, only pushes to merge
	# queue branches and release branches, so this only runs full CI in
	# those locations.
	if [ "${{ github.event_name }}" != "pull_request" ]; then
	run_full=true
	else
	pr=${{ github.event.number }}
	gh pr view $pr --json commits \| tee commits.log
	gh pr diff $pr --name-only \| tee names.log \|\| echo "failed to get files"
	if [ "${{ github.base_ref }}" != "main" ]; then
	run_full=true
	elif grep -q 'prtest:full' commits.log; then
	run_full=true
	elif grep -q 'prtest:debug' commits.log; then
	echo run-dwarf=true >> $GITHUB_OUTPUT
	fi
	if grep -q crates.c-api names.log; then
	echo test-capi=true >> $GITHUB_OUTPUT
	fi
	if grep -q fuzz names.log; then
	echo test-nightly=true >> $GITHUB_OUTPUT
	fi
	if grep -q sys.custom names.log; then
	echo test-nightly=true >> $GITHUB_OUTPUT
	fi
	if grep -q Cargo.lock names.log; then
	echo audit=true >> $GITHUB_OUTPUT
	fi
	if grep -q supply-chain names.log; then
	echo audit=true >> $GITHUB_OUTPUT
	fi
	if grep -q component-adapter names.log; then
	echo preview1-adapter=true >> $GITHUB_OUTPUT
	fi
	if grep -q debug names.log; then
	echo run-dwarf=true >> $GITHUB_OUTPUT
	fi
	fi
	matrix="$(node ./ci/build-test-matrix.js ./commits.log ./names.log $run_full)"
	echo "test-matrix={\"include\":$(echo $matrix)}" >> $GITHUB_OUTPUT
	echo "$matrix"

	matrix="$(node ./ci/build-build-matrix.js)"
	echo "build-matrix={\"include\":$(echo $matrix)}" >> $GITHUB_OUTPUT

	if [ "$run_full" = "true" ]; then
	echo run-full=true >> $GITHUB_OUTPUT
	echo test-capi=true >> $GITHUB_OUTPUT
	echo test-nightly=true >> $GITHUB_OUTPUT
	echo audit=true >> $GITHUB_OUTPUT
	echo preview1-adapter=true >> $GITHUB_OUTPUT
	echo run-dwarf=true >> $GITHUB_OUTPUT
	fi

	# Build all documentation of Wasmtime, including the C API documentation,
	# mdbook documentation, etc. This produces a `gh-pages` artifact which is what
	# gets uploaded to the `gh-pages` branch later on.
	doc:
	needs: determine
	if: needs.determine.outputs.run-full
	name: Doc build
	runs-on: ubuntu-latest
	env:
	CARGO_MDBOOK_VERSION: 0.4.37
	RUSTDOCFLAGS: -Dbroken_intra_doc_links --cfg docsrs
	OPENVINO_SKIP_LINKING: 1
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	with:
	toolchain: wasmtime-ci-pinned-nightly

	# Build C API documentation
	- run: curl -L https://sourceforge.net/projects/doxygen/files/rel-1.9.3/doxygen-1.9.3.linux.bin.tar.gz/download \| tar xzf -
	- run: echo "`pwd`/doxygen-1.9.3/bin" >> $GITHUB_PATH
	- run: cmake -S crates/c-api -B target/c-api
	- run: cmake --build target/c-api --target doc

	# install mdbook, build the docs, and test the docs
	- uses: actions/cache@v4
	with:
	path: ${{ runner.tool_cache }}/mdbook
	key: cargo-mdbook-bin-${{ env.CARGO_MDBOOK_VERSION }}
	- run: \|
	echo "${{ runner.tool_cache }}/mdbook/bin" >> $GITHUB_PATH
	cargo install --root ${{ runner.tool_cache }}/mdbook --version ${{ env.CARGO_MDBOOK_VERSION }} mdbook --locked
	- run: (cd docs && mdbook build)
	- run: cargo build -p wasi-common --features wasmtime/wat,wasmtime/cranelift
	- run: (cd docs && mdbook test -L ../target/debug/deps)

	# Build Rust API documentation.
	#
	# Enable extra features in crates as well to ensure they're documented
	- run: \|
	cargo doc --no-deps --workspace \
	--exclude wasmtime-cli \
	--exclude test-programs \
	--exclude cranelift-codegen-meta \
	--features call-hook
	env:
	RUSTDOCFLAGS: --cfg=docsrs
	- run: cargo doc --package cranelift-codegen-meta --document-private-items
	env:
	RUSTDOCFLAGS: --cfg=docsrs

	# Assemble the documentation, and always upload it as an artifact for
	# inspection on PRs and such.
	- run: \|
	mv docs/book gh-pages
	mv crates/c-api/html gh-pages/c-api
	mv target/doc gh-pages/api
	tar czf gh-pages.tar.gz gh-pages
	- uses: actions/upload-artifact@v4
	with:
	name: gh-pages
	path: gh-pages.tar.gz

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Checks of various feature combinations and whether things compile. The goal
	# here isn't to run tests, mostly just serve as a double-check that Rust code
	# compiles and is likely to work everywhere else.
	micro_checks:
	name: Check ${{matrix.name}}
	strategy:
	fail-fast: true
	matrix:
	include:
	- name: wasmtime
	checks: \|
	-p wasmtime --no-default-features
	-p wasmtime --no-default-features --features wat
	-p wasmtime --no-default-features --features profiling
	-p wasmtime --no-default-features --features cache
	-p wasmtime --no-default-features --features async
	-p wasmtime --no-default-features --features pooling-allocator
	-p wasmtime --no-default-features --features cranelift
	-p wasmtime --no-default-features --features component-model
	-p wasmtime --no-default-features --features runtime,component-model
	-p wasmtime --no-default-features --features cranelift,wat,async,cache
	-p wasmtime --no-default-features --features winch
	-p wasmtime --no-default-features --features wmemcheck
	-p wasmtime --no-default-features --features wmemcheck,cranelift,runtime
	-p wasmtime --no-default-features --features demangle
	-p wasmtime --no-default-features --features addr2line
	-p wasmtime --no-default-features --features gc
	-p wasmtime --no-default-features --features runtime,gc
	-p wasmtime --no-default-features --features cranelift,gc
	-p wasmtime --no-default-features --features runtime
	-p wasmtime --no-default-features --features threads
	-p wasmtime --no-default-features --features runtime,threads
	-p wasmtime --no-default-features --features cranelift,threads
	-p wasmtime --features incremental-cache
	-p wasmtime --all-features

	- name: wasmtime-cli
	checks: \|
	-p wasmtime-cli --no-default-features
	-p wasmtime-cli --no-default-features --features pooling-allocator
	-p wasmtime-cli --no-default-features --features run
	-p wasmtime-cli --no-default-features --features run,component-model
	-p wasmtime-cli --no-default-features --features run,pooling-allocator
	-p wasmtime-cli --no-default-features --features compile
	-p wasmtime-cli --no-default-features --features compile,cranelift
	-p wasmtime-cli --no-default-features --features compile,cranelift,component-model
	-p wasmtime-cli --all-features
	-p wasmtime-cli --features component-model

	- name: cranelift-codegen
	checks: \|
	-p cranelift-codegen --benches
	-p cranelift-codegen --no-default-features --features std,unwind,pulley

	- name: wasmtime-bench-api
	checks: \|
	-p wasmtime-bench-api

	- name: wasmtime-c-api
	checks: \|
	-p wasmtime-c-api --no-default-features
	-p wasmtime-c-api --no-default-features --features wat
	-p wasmtime-c-api --no-default-features --features wasi
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	# Run the check.
	- run: \|
	checks=$(cat <<END
	${{ matrix.checks }}
	END
	)
	echo "$checks" \| xargs -I CHECK sh -c 'echo "=== cargo check CHECK ==="; cargo check CHECK'

	# Common logic to cancel the entire run if this job fails.
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Checks for no_std support, ensure that crates can build on a no_std target
	no_std_checks:
	name: no_std checks
	runs-on: ubuntu-latest
	env:
	CARGO_NDK_VERSION: 2.12.2
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	- run: rustup target add x86_64-unknown-none
	- run: cargo check --target x86_64-unknown-none -p wasmtime --no-default-features --features runtime,gc,component-model
	- run: cargo check --target x86_64-unknown-none -p cranelift-control --no-default-features
	- run: cargo check --target x86_64-unknown-none -p pulley-interpreter --features encode,decode,disas,interp

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Check that Clippy lints are passing.
	clippy:
	name: Clippy
	runs-on: ubuntu-latest
	env:
	CARGO_NDK_VERSION: 2.12.2
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	- run: rustup component add clippy
	- run: cargo clippy --workspace --all-targets

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Similar to `micro_checks` but where we need to install some more state
	# (e.g. Android NDK) and we haven't factored support for those things out into
	# a parallel jobs yet.
	monolith_checks:
	name: Monolith Checks
	runs-on: ubuntu-latest
	env:
	CARGO_NDK_VERSION: 2.12.2
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	# Check that wasmtime compiles with panic=abort since there's some `#[cfg]`
	# for specifically panic=abort there.
	- run: cargo check -p wasmtime
	env:
	RUSTFLAGS: -Cpanic=abort

	# Check a few builds of the cranelift backend
	# - only x86 backend support,
	# - only arm64 backend support,
	# - no debug_assertions.
	- run: cargo check --manifest-path=./cranelift/Cargo.toml --bin clif-util --no-default-features --features=cranelift-codegen/arm64
	- run: cargo check --manifest-path=./cranelift/Cargo.toml --bin clif-util --no-default-features --features=cranelift-codegen/x86
	- run: cargo check --manifest-path=./cranelift/Cargo.toml --bin clif-util
	env:
	CARGO_PROFILE_DEV_DEBUG_ASSERTIONS: false

	# Check whether `wasmtime` cross-compiles to x86_64-unknown-freebsd
	# TODO: We aren't building with default features since the `ittapi` crate fails to compile on freebsd.
	- run: rustup target add x86_64-unknown-freebsd
	- run: cargo check -p wasmtime --no-default-features --features cranelift,wat,async,cache --target x86_64-unknown-freebsd

	# Re-vendor all WIT files and ensure that they're all up-to-date by ensuring
	# that there's no git changes.
	- name: Re-vendor WIT
	run: ./ci/vendor-wit.sh
	- run: git diff --exit-code

	# Re-vendor the C API and make sure it's up-to-date.
	- name: Re-vendor C API
	run: ./ci/vendor-c-api-headers.sh
	- run: git diff --exit-code

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Check whether `wasmtime` cross-compiles to aarch64-pc-windows-msvc
	# We don't build nor test it because it lacks trap handling.
	# Tracking issue: https://github.com/bytecodealliance/wasmtime/issues/4992
	checks_winarm64:
	needs: determine
	if: needs.determine.outputs.run-full
	name: Check Windows ARM64
	runs-on: windows-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: rustup target add aarch64-pc-windows-msvc
	- run: cargo check -p wasmtime --target aarch64-pc-windows-msvc

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Run tests that require a nightly compiler, such as building fuzz targets.
	test_nightly:
	needs: determine
	if: needs.determine.outputs.test-nightly
	name: Nightly tests
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	# Note that nightly is pinned here to insulate us from breakage that might
	# happen upstream. This is periodically updated through a PR.
	- uses: ./.github/actions/install-rust
	with:
	toolchain: wasmtime-ci-pinned-nightly

	# Ensure that fuzzers still build.
	#
	# Install the OCaml packages necessary for fuzz targets that use the
	# `wasm-spec-interpreter`.
	- run: cargo install cargo-fuzz --vers "^0.11" --locked
	- run: sudo apt-get update && sudo apt install -y ocaml-nox ocamlbuild ocaml-findlib libzarith-ocaml-dev
	- run: cargo fetch
	working-directory: ./fuzz
	- run: cargo fuzz build --dev -s none
	- run: cargo fuzz build --dev -s none --fuzz-dir ./cranelift/isle/fuzz
	- run: cargo fuzz build --dev -s none --fuzz-dir ./crates/environ/fuzz --features component-model

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Perform all tests of the c-api
	test_capi:
	needs: determine
	name: Test C-API ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	if: needs.determine.outputs.test-capi

	strategy:
	fail-fast: true
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	# Build and test the C API with example C programs along with the example
	# Rust programs. Note that this only executes if the `determine` step told
	# us to test the capi which is off-by-default for PRs.
	- run: cmake -Sexamples -Bexamples/build -DBUILD_SHARED_LIBS=OFF
	- run: cmake --build examples/build --config Debug
	- run: cmake -E env CTEST_OUTPUT_ON_FAILURE=1 cmake --build examples/build --config Debug --target RUN_TESTS
	env:
	RUST_BACKTRACE: 1
	if: matrix.os == 'windows-latest'
	- run: cmake -E env CTEST_OUTPUT_ON_FAILURE=1 cmake --build examples/build --config Debug --target test
	env:
	RUST_BACKTRACE: 1
	if: matrix.os != 'windows-latest'

	# Perform all tests (debug mode) for `wasmtime`.
	#
	# Note that the full matrix for what may run here is defined within
	# `./ci/build-test-matrix.js` and the execution of the `determine` step will
	# calculate whether the tests are actually run as part of PRs and such.
	test:
	needs: determine
	name: ${{ matrix.name }}
	runs-on: ${{ matrix.os }}
	env:
	QEMU_BUILD_VERSION: 8.1.5
	strategy:
	fail-fast: ${{ github.event_name != 'pull_request' }}
	matrix: ${{ fromJson(needs.determine.outputs.test-matrix) }}
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	with:
	toolchain: ${{ matrix.rust }}

	# Install targets in order to build various tests throughout the repo
	- run: rustup target add wasm32-wasip1 wasm32-unknown-unknown ${{ matrix.target }}
	- run: echo CARGO_BUILD_TARGET=${{ matrix.target }} >> $GITHUB_ENV
	if: matrix.target != ''

	# Fix an ICE for now in gcc when compiling zstd with debuginfo (??)
	- run: echo CFLAGS=-g0 >> $GITHUB_ENV
	if: matrix.target == 'x86_64-pc-windows-gnu'

	# Update binutils if MinGW due to https://github.com/rust-lang/rust/issues/112368
	- run: C:/msys64/usr/bin/pacman.exe -S --needed mingw-w64-x86_64-gcc --noconfirm
	if: matrix.target == 'x86_64-pc-windows-gnu'
	- shell: pwsh
	run: echo "C:\msys64\mingw64\bin" >> $Env:GITHUB_PATH
	if: matrix.target == 'x86_64-pc-windows-gnu'

	- run: cargo fetch --locked

	- name: Install cross-compilation tools
	run: \|
	set -ex

	sudo apt-get update
	sudo apt-get install -y ${{ matrix.gcc_package }} ninja-build

	# Configure Cargo for cross compilation and tell it how it can run
	# cross executables
	upcase=$(echo ${{ matrix.target }} \| awk '{ print toupper($0) }' \| sed 's/-/_/g')
	echo CARGO_TARGET_${upcase}_LINKER=${{ matrix.gcc }} >> $GITHUB_ENV
	if: matrix.gcc != ''

	- uses: actions/cache@v4
	with:
	path: ${{ runner.tool_cache }}/qemu
	key: qemu-${{ matrix.target }}-${{ env.QEMU_BUILD_VERSION }}-patchcpuinfo
	if: matrix.qemu != ''
	- name: Install qemu
	run: \|
	set -ex

	upcase=$(echo ${{ matrix.target }} \| awk '{ print toupper($0) }' \| sed 's/-/_/g')
	echo CARGO_TARGET_${upcase}_RUNNER=${{ runner.tool_cache }}/qemu/bin/${{ matrix.qemu }} >> $GITHUB_ENV

	# QEMU emulation is not always the speediest, so total testing time
	# goes down if we build the libs in release mode when running tests.
	echo CARGO_PROFILE_DEV_OPT_LEVEL=2 >> $GITHUB_ENV

	# See comments in the source for why we enable this during QEMU
	# emulation.
	echo WASMTIME_TEST_NO_HOG_MEMORY=1 >> $GITHUB_ENV

	# See if qemu is already in the cache
	if [ -f ${{ runner.tool_cache }}/qemu/built ]; then
	exit 0
	fi

	# Download and build qemu from source since the most recent release is
	# way faster at arm emulation than the current version github actions'
	# ubuntu image uses. Disable as much as we can to get it to build
	# quickly.
	curl https://download.qemu.org/qemu-$QEMU_BUILD_VERSION.tar.xz \| tar xJf -
	cd qemu-$QEMU_BUILD_VERSION
	./configure --target-list=${{ matrix.qemu_target }} --prefix=${{ runner.tool_cache}}/qemu --disable-tools --disable-slirp --disable-fdt --disable-capstone --disable-docs
	ninja -C build install
	touch ${{ runner.tool_cache }}/qemu/built
	if: matrix.qemu != ''

	# Record some CPU details; this is helpful information if tests fail due
	# to CPU-specific features.
	- name: CPU information
	run: lscpu
	if: matrix.os == 'ubuntu-latest'
	- name: CPU information
	run: sysctl hw
	if: contains(matrix.os, 'macos')
	- name: CPU information
	run: wmic cpu list /format:list
	shell: pwsh
	if: matrix.os == 'windows-latest'

	# Since MPK (PKU) is not present on some GitHub runners, we check if it is
	# available before force-enabling it. This occasional testing is better than
	# none at all; ideally we would test in a system-mode QEMU VM.
	- name: Force-run with MPK enabled, if available
	if: ${{ contains(matrix.name, 'MPK') }}
	run: \|
	if cargo run --example mpk-available; then
	echo "::notice::This CI run will force-enable MPK; this ensures tests conditioned with the \`WASMTIME_TEST_FORCE_MPK\` environment variable will run with MPK-protected memory pool stripes."
	echo WASMTIME_TEST_FORCE_MPK=1 >> $GITHUB_ENV
	else
	echo "::warning::This CI run will not test MPK; it has been detected as not available on this machine (\`cargo run --example mpk-available\`)."
	fi

	# Install VTune, see `cli_tests::profile_with_vtune`.
	- name: Install VTune
	if: matrix.filter == 'linux-x64' && contains(matrix.bucket, 'wasmtime-cli')
	uses: abrown/install-vtune-action@v1

	# Build and test all features
	- run: ./ci/run-tests.sh --locked ${{ matrix.bucket }}
	env:
	RUST_BACKTRACE: 1

	# NB: the test job here is explicitly lacking in cancellation of this run if
	# something goes wrong. These take the longest anyway and otherwise if
	# Windows fails GitHub Actions will confusingly mark the failed Windows job
	# as cancelled instead of failed.

	# Test `wasmtime-wasi-nn` in its own job, as not all of its backends are
	# compatible with all targets, and each must be tested separately anyways.
	test_wasi_nn:
	strategy:
	matrix:
	feature: ["openvino", "onnx"]
	os: ["ubuntu-latest", "windows-latest"]
	include:
	- os: windows-latest
	feature: winml
	name: Test wasi-nn (${{ matrix.feature }}, ${{ matrix.os }})
	runs-on: ${{ matrix.os }}
	needs: determine
	if: needs.determine.outputs.run-full
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	# Install OpenVINO
	- uses: abrown/install-openvino-action@v8
	if: runner.arch == 'X64'

	# Install WinML for testing wasi-nn WinML backend. WinML is only available
	# on Windows clients and Windows Server with desktop experience enabled.
	# GitHub Actions Window Server image doesn't have desktop experience
	# enabled, so we download the standalone library from ONNX Runtime project.
	- uses: nuget/setup-nuget@v2
	if: (matrix.os == 'windows-latest') && (matrix.feature == 'winml')
	- run: nuget install Microsoft.AI.MachineLearning
	if: (matrix.os == 'windows-latest') && (matrix.feature == 'winml')

	# Install Rust targets.
	- run: rustup target add wasm32-wasip1

	# Run the tests!
	- run: cargo test -p wasmtime-wasi-nn --features ${{ matrix.feature }}
	env:
	RUST_BACKTRACE: 1

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Test the `wasmtime-fuzzing` crate. Split out from the main tests because
	# `--all-features` brings in OCaml, which is a pain to get setup for all
	# targets.
	test_fuzzing:
	needs: determine
	if: needs.determine.outputs.run-full
	name: Test wasmtime-fuzzing
	runs-on: 'ubuntu-latest'
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust

	# Run the tests
	- run: \|
	cargo test -p wasmtime-fuzzing -p wasm-spec-interpreter
	env:
	RUST_BACKTRACE: 1

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Test debug (DWARF) related functionality.
	test_debug_dwarf:
	needs: determine
	if: needs.determine.outputs.run-dwarf
	name: Test DWARF debugging
	runs-on: 'ubuntu-latest'
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: rustup target add wasm32-wasip1 wasm32-unknown-unknown
	- run: \|
	sudo apt-get update && sudo apt-get install -y gdb lldb-15 llvm
	# workaround for https://bugs.launchpad.net/ubuntu/+source/llvm-defaults/+bug/1972855
	sudo mkdir -p /usr/lib/local/lib/python3.10/dist-packages/lldb
	sudo ln -s /usr/lib/llvm-15/lib/python3.10/dist-packages/lldb/* /usr/lib/python3/dist-packages/lldb/
	cargo test --test all -- --ignored --test-threads 1 debug::
	env:
	RUST_BACKTRACE: 1
	LLDB: lldb-15 # override default version, 14

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	build-preview1-component-adapter:
	name: Build wasi-preview1-component-adapter
	needs: determine
	if: needs.determine.outputs.preview1-adapter
	runs-on: ubuntu-latest
	permissions:
	deployments: write
	contents: write
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: rustup target add wasm32-wasip1 wasm32-unknown-unknown

	- name: Install wasm-tools
	run: \|
	curl -L https://github.com/bytecodealliance/wasm-tools/releases/download/wasm-tools-1.0.27/wasm-tools-1.0.27-x86_64-linux.tar.gz \| tar xfz -
	echo `pwd`/wasm-tools-1.0.27-x86_64-linux >> $GITHUB_PATH

	- run: ./ci/build-wasi-preview1-component-adapter.sh
	env:
	VERSION: ${{ github.sha }}

	- uses: actions/upload-artifact@v4
	with:
	name: bins-wasi-preview1-component-adapter
	path: target/wasm32-unknown-unknown/release/wasi_snapshot_preview1.*.wasm


	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	build-preview1-component-adapter-provider:
	name: Build wasi-preview1-component-adapter-provider
	needs: build-preview1-component-adapter
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- uses: ./.github/actions/build-adapter-provider
	with:
	run-id: ${{ github.run_id }}


	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Verify the "min platform" example still works.
	test-min-platform-example:
	name: Test the min-platform example
	needs: determine
	if: needs.determine.outputs.run-full
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: cargo install cbindgen --vers "^0.26" --locked
	- run: rustup target add x86_64-unknown-none
	- run: ./build.sh x86_64-unknown-none
	working-directory: ./examples/min-platform

	# Afterwards make sure the generated header file is up to date by ensuring
	# that the regeneration process didn't change anything in-tree.
	- run: git diff --exit-code

	# Add the `wasmtime-platform.h` file as a release artifact
	- uses: actions/upload-artifact@v4
	with:
	name: wasmtime-platform-header
	path: examples/min-platform/embedding/wasmtime-platform.h

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}


	build-wasmtime-target-wasm32:
	name: Build wasmtime-target-wasm32
	if: needs.determine.outputs.run-full
	needs: determine
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: rustup target add wasm32-wasip1 wasm32-unknown-unknown
	- run: cargo build --target wasm32-wasip1 --no-default-features --features compile,cranelift,all-arch
	env:
	VERSION: ${{ github.sha }}

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}


	bench:
	needs: determine
	if: needs.determine.outputs.run-full
	name: Run benchmarks
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: rustup target add wasm32-wasip1
	- run: cargo test --benches --release

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Verify that cranelift's code generation is deterministic
	meta_deterministic_check:
	needs: determine
	if: needs.determine.outputs.run-full
	name: Meta deterministic check
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: cd cranelift/codegen && cargo build --features all-arch
	- run: ci/ensure_deterministic_build.sh

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	verify-publish:
	needs: determine
	if: github.repository == 'bytecodealliance/wasmtime' && needs.determine.outputs.run-full
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	- run: \|
	cd ${{ runner.tool_cache }}
	curl -L https://github.com/mozilla/sccache/releases/download/0.2.13/sccache-0.2.13-x86_64-unknown-linux-musl.tar.gz \| tar xzf -
	echo "`pwd`/sccache-0.2.13-x86_64-unknown-linux-musl" >> $GITHUB_PATH
	echo RUSTC_WRAPPER=sccache >> $GITHUB_ENV
	- run: rustc scripts/publish.rs
	# Make sure the tree is publish-able as-is
	- run: ./publish verify
	# Make sure we can bump version numbers for the next release
	- run: ./publish bump

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Run a subset of tests under MIRI on CI to help check the `unsafe` code in
	# Wasmtime to make sure it's at least not obviously incorrect for basic usage.
	# Note that this doesn't run the full test suite since MIRI can't actually run
	# WebAssembly itself at this time (aka it doesn't support a JIT). There are a
	# number of annotations throughout the code which gates some tests on MIRI not
	# being run.
	#
	# Note that `cargo nextest` is used here additionally to get parallel test
	# execution by default to help cut down on the time in CI.
	miri:
	strategy:
	matrix:
	crate:
	- "wasmtime"
	- "wasmtime-cli"
	- "wasmtime-environ"
	- "pulley-interpreter --all-features"
	needs: determine
	if: needs.determine.outputs.run-full && github.repository == 'bytecodealliance/wasmtime'
	name: Miri
	runs-on: ubuntu-latest
	env:
	CARGO_NEXTEST_VERSION: 0.9.67
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: ./.github/actions/install-rust
	with:
	toolchain: wasmtime-ci-pinned-nightly
	- run: rustup component add rust-src miri
	- uses: actions/cache@v4
	with:
	path: ${{ runner.tool_cache }}/cargo-nextest
	key: cargo-nextest-bin-${{ env.CARGO_NEXTEST_VERSION }}
	- run: echo "${{ runner.tool_cache }}/cargo-nextest/bin" >> $GITHUB_PATH
	- run: cargo install --root ${{ runner.tool_cache }}/cargo-nextest --version ${{ env.CARGO_NEXTEST_VERSION }} cargo-nextest --locked
	- run: \|
	cargo miri nextest run -j4 --no-fail-fast -p ${{ matrix.crate }}
	env:
	MIRIFLAGS: -Zmiri-strict-provenance

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# Perform release builds of `wasmtime` and `libwasmtime.so`. Builds a variety
	# of platforms and architectures and then uploads the release artifacts to
	# this workflow run's list of artifacts.
	#
	# Note that the full matrix is computed by `ci/build-build-matrix.js`.
	build:
	needs: determine
	if: needs.determine.outputs.run-full
	name: Release build for ${{ matrix.build }}
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: ${{ github.event_name != 'pull_request' }}
	matrix: ${{ fromJson(needs.determine.outputs.build-matrix) }}
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true

	- uses: ./.github/actions/install-rust
	with:
	toolchain: ${{ matrix.rust }}
	- run: \|
	rustup component add rust-src
	rustup target add ${{ matrix.target }}

	# On one builder produce the source tarball since there's no need to produce
	# it everywhere
	- run: ./ci/build-src-tarball.sh
	if: matrix.build == 'x86_64-linux'
	- uses: ./.github/actions/binary-compatible-builds
	with:
	name: ${{ matrix.build }}

	- uses: ./.github/actions/android-ndk
	if: contains(matrix.target, 'android')
	with:
	target: ${{ matrix.target }}

	- run: $CENTOS ./ci/build-release-artifacts.sh "${{ matrix.build }}" "${{ matrix.target }}"

	# Assemble release artifacts appropriate for this platform, then upload them
	# unconditionally to this workflow's files so we have a copy of them.
	- run: ./ci/build-tarballs.sh "${{ matrix.build }}" "${{ matrix.target }}"

	- uses: actions/upload-artifact@v4
	with:
	name: bins-${{ matrix.build }}
	path: dist

	# common logic to cancel the entire run if this job fails
	- run: gh run cancel ${{ github.run_id }}
	if: failure() && github.event_name != 'pull_request'
	env:
	GH_TOKEN: ${{ github.token }}

	# This is a "join node" which depends on all prior workflows. The merge queue,
	# for example, gates on this to ensure that everything has executed
	# successfully.
	#
	# Note that this is required currently for odd reasons with github. Notably
	# the set of checks to enter the merge queue and leave the merge queue must
	# be the same which means that the "build" step for example shows as skipped
	# for PRs but expands to many different steps for merge-queue-based PRs. That
	# means that for that step there's no single name to gate on, so it's required
	# to have a "join" node here which joins everything.
	#
	# Note that this currently always runs to always report a status, even on
	# cancellation and even if dependency steps fail. Each dependency tries to
	# cancel the whole run if it fails, so if a test matrix entry fails, for
	# example, it cancels the build matrix entries too. This step then tries to
	# fail on cancellation to ensure that the dependency failures are propagated
	# correctly.
	ci-status:
	name: Record the result of testing and building steps
	runs-on: ubuntu-latest
	needs:
	- test
	- test_capi
	- test_debug_dwarf
	- test_fuzzing
	- test_wasi_nn
	- test_nightly
	- build
	- rustfmt
	- clangformat
	- cargo_deny
	- cargo_vet
	- doc
	- micro_checks
	- no_std_checks
	- clippy
	- monolith_checks
	- checks_winarm64
	- bench
	- meta_deterministic_check
	- verify-publish
	- determine
	- miri
	- build-preview1-component-adapter
	- build-preview1-component-adapter-provider
	- build-wasmtime-target-wasm32
	- test-min-platform-example
	- check_js
	if: always()
	steps:
	- name: Successful test and build
	if: ${{ !(contains(needs.*.result, 'failure')) }}
	run: exit 0
	- name: Failing test and build
	if: ${{ contains(needs.*.result, 'failure') }}
	run: exit 1
	- name: Report failure on cancellation
	if: ${{ contains(needs.*.result, 'cancelled') \|\| cancelled() }}
	run: exit 1

	# The purpose of this jobs is to watch for changes on the `release-*`
	# branches of this repository and look for the term
	# "automatically-tag-and-release-this-commit" within merged PRs/commits. Once
	# that term is found the current version of `Cargo.toml`, the `wasmtime-cli`
	# Cargo.toml, is created as a tag and the tag is pushed to the repo.
	# Currently the tag is created through the GitHub API with an access token to
	# ensure that CI is further triggered for the tag itself which performs the
	# full release process.
	#
	# Note that this depends on the `ci-status` step above which is the "join"
	# point of this workflow for when everything succeeds. the purpose of that is
	# so that the tag is only created after the aftifacts have been uploaded for
	# this workflow as the `publish-artifacts.yml` workflow will download these
	# artifacts and then publish them to the tag.
	push-tag:
	runs-on: ubuntu-latest
	needs: ci-status
	if: \|
	always()
	&& needs.ci-status.result == 'success'
	&& github.event_name == 'push'
	&& startsWith(github.ref, 'refs/heads/release-')
	&& github.repository == 'bytecodealliance/wasmtime'
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	fetch-depth: 0
	- name: Test if tag is needed
	run: \|
	git log ${{ github.event.before }}...${{ github.event.after }} \| tee main.log
	version=$(grep '^version =' Cargo.toml \| head -n 1 \| sed 's/."$.$"/\1/')
	echo "version: $version"
	echo "version=$version" >> $GITHUB_OUTPUT
	echo "sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
	if grep -q "automatically-tag-and-release-this-commit" main.log; then
	echo push-tag
	echo "push_tag=yes" >> $GITHUB_OUTPUT
	else
	echo no-push-tag
	echo "push_tag=no" >> $GITHUB_OUTPUT
	fi
	id: tag
	- name: Push the tag
	run: \|
	git_refs_url=$(jq .repository.git_refs_url $GITHUB_EVENT_PATH \| tr -d '"' \| sed 's/{\/sha}//g')
	curl -iX POST $git_refs_url \
	-H "Authorization: token ${{ secrets.PERSONAL_ACCESS_TOKEN }}" \
	-d @- << EOF
	{
	"ref": "refs/tags/v${{ steps.tag.outputs.version }}",
	"sha": "${{ steps.tag.outputs.sha }}"
	}
	EOF
	if: steps.tag.outputs.push_tag == 'yes'

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Add constant evaluation support for the `struct.new[_default]` Wasm GC instructions #25455

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Add constant evaluation support for the `struct.new[_default]` Wasm GC instructions #25455

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Add constant evaluation support for the struct.new[_default] Wasm GC instructions #25455

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Add constant evaluation support for the `struct.new[_default]` Wasm GC instructions #25455