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change might_permit_raw_init to fully detect LLVM UB, but not more than that

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This commit is contained in:
Ralf Jung
2022-09-20 11:33:16 +02:00
parent 02cd79afb8
commit a0131f0a36
10 changed files with 411 additions and 258 deletions
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6
compiler/rustc_const_eval/src/lib.rs
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@@ -32,7 +32,6 @@ extern crate rustc_middle;
pub mod const_eval;
mod errors;
pub mod interpret;
mod might_permit_raw_init;
pub mod transform;
pub mod util;
@@ -61,7 +60,6 @@ pub fn provide(providers: &mut Providers) {
const_eval::deref_mir_constant(tcx, param_env, value)
};
providers.permits_uninit_init =
|tcx, ty| might_permit_raw_init::might_permit_raw_init(tcx, ty, InitKind::Uninit);
providers.permits_zero_init =
|tcx, ty| might_permit_raw_init::might_permit_raw_init(tcx, ty, InitKind::Zero);
|tcx, ty| util::might_permit_raw_init(tcx, ty, InitKind::UninitMitigated0x01Fill);
providers.permits_zero_init = |tcx, ty| util::might_permit_raw_init(tcx, ty, InitKind::Zero);
}