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| author | bors <bors@rust-lang.org> | 2024-03-10 01:23:54 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2024-03-10 01:23:54 +0000 |
| commit | 45f87a0627be46ec38e4c4d0d17c750abae64c77 (patch) | |
| tree | ea781b295933feb7dcdeb79edfb7cb1525b7cd54 /compiler/rustc_codegen_llvm/src | |
| parent | 689040738a56346097453bbd3c4126d2be262992 (diff) | |
| parent | 158b70a1eda04c9e8ffd9a3eea99958ccea380df (diff) | |
| download | rust-45f87a0627be46ec38e4c4d0d17c750abae64c77.tar.gz rust-45f87a0627be46ec38e4c4d0d17c750abae64c77.zip | |
Auto merge of #121662 - saethlin:precondition-unification, r=RalfJung
Distinguish between library and lang UB in assert_unsafe_precondition As described in https://github.com/rust-lang/rust/pull/121583#issuecomment-1963168186, `assert_unsafe_precondition` now explicitly distinguishes between language UB (conditions we explicitly optimize on) and library UB (things we document you shouldn't do, and maybe some library internals assume you don't do). `debug_assert_nounwind` was originally added to avoid the "only at runtime" aspect of `assert_unsafe_precondition`. Since then the difference between the macros has gotten muddied. This totally revamps the situation. Now _all_ preconditions shall be checked with `assert_unsafe_precondition`. If you have a precondition that's only checkable at runtime, do a `const_eval_select` hack, as done in this PR. r? RalfJung
Diffstat (limited to 'compiler/rustc_codegen_llvm/src')
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