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Fix transmute codegen when sizes are different #3861
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Instead of crashing, add a safety check that ensures the transmute is not reachable.
carolynzech
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Jan 29, 2025
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Thanks!
celinval
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Jan 29, 2025
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model-checking:main
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Github generated release notes: ## What's Changed * Automatic toolchain upgrade to nightly-2025-01-08 by @github-actions in #3821 * Automatic cargo update to 2025-01-13 by @github-actions in #3824 * Automatic toolchain upgrade to nightly-2025-01-09 by @github-actions in #3825 * Bump ncipollo/release-action from 1.14.0 to 1.15.0 by @dependabot in #3826 * Bump tests/perf/s2n-quic from `ac52a48` to `adc7ba9` by @dependabot in #3827 * Automatic toolchain upgrade to nightly-2025-01-10 by @github-actions in #3828 * Automatic toolchain upgrade to nightly-2025-01-11 by @github-actions in #3830 * Verify contracts/stubs for generic types with multiple inherent implementations by @carolynzech in #3829 * Update Charon submodule by @thanhnguyen-aws in #3823 * Automatic toolchain upgrade to nightly-2025-01-12 by @github-actions in #3831 * Automatic toolchain upgrade to nightly-2025-01-13 by @github-actions in #3833 * Upgrade toolchain to 2025-01-15 by @tautschnig in #3835 * Automatic toolchain upgrade to nightly-2025-01-16 by @github-actions in #3836 * Add a regression test for `no_std` feature by @carolynzech in #3837 * Use fully-qualified name for size_of by @zhassan-aws in #3838 * Automatic cargo update to 2025-01-20 by @github-actions in #3842 * Bump tests/perf/s2n-quic from `adc7ba9` to `f0649f9` by @dependabot in #3844 * Upgrade toolchain to nightly-2025-01-22 by @tautschnig in #3843 * Remove `DefKind::Ctor` from filtering crate items by @carolynzech in #3845 * Enable valid_ptr post_condition harnesses by @tautschnig in #3847 * Update build command in docs to use release mode by @zhassan-aws in #3846 * Automatic toolchain upgrade to nightly-2025-01-23 by @github-actions in #3848 * Automatic toolchain upgrade to nightly-2025-01-24 by @github-actions in #3850 * Remove the openssl-devel package from dependencies by @zhassan-aws in #3852 * Fix validity checks for `char` by @celinval in #3853 * Bump tests/perf/s2n-quic from `f0649f9` to `4500593` by @dependabot in #3857 * Automatic cargo update to 2025-01-27 by @github-actions in #3856 * Deprecate `--enable-unstable` and `--restrict-vtable` by @celinval in #3859 * Stub linker to avoid missing symbols errors by @celinval in #3858 * Toolchain upgrade to nightly-2025-01-28 by @feliperodri in #3855 * Allow multiple annotations, but check for duplicate targets. by @remi-delmas-3000 in #3808 * Move documentation of kani_core modules to right places by @qinheping in #3851 * Fix missing function declaration issue by @celinval in #3862 * Fix transmute codegen when sizes are different by @celinval in #3861 * Remove symtab2gb from bundle by @zhassan-aws in #3865 * Update the rustc hack for CLion / RustRover by @celinval in #3868 * Bump tests/perf/s2n-quic from `4500593` to `82dd0b5` by @dependabot in #3872 * Automatic cargo update to 2025-02-03 by @github-actions in #3869 * Add reference for loop contracts by @qinheping in #3849 * remove flag float-overflow-check by @rajath-mk in #3873 ## New Contributors * @rajath-mk made their first contribution in #3873 **Full Changelog**: kani-0.58.0...kani-0.59.0 By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 and MIT licenses. --------- Co-authored-by: Zyad Hassan <[email protected]>
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Instead of crashing, add a safety check that ensures the transmute is not reachable.
Resolves #3839
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 and MIT licenses.