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| author | Nilstrieb <48135649+Nilstrieb@users.noreply.github.com> | 2023-02-22 20:51:29 +0000 |
|---|---|---|
| committer | Nilstrieb <48135649+Nilstrieb@users.noreply.github.com> | 2023-02-23 18:42:36 +0000 |
| commit | 4036a5722a240f4c03ab269f29166502b3c6e4c8 (patch) | |
| tree | 46cf7cf884c26877255319b6033da56afd9962b4 | |
| parent | 93fdcfa554af34c01970db8ace1e724214913f8f (diff) | |
| download | rust-4036a5722a240f4c03ab269f29166502b3c6e4c8.tar.gz rust-4036a5722a240f4c03ab269f29166502b3c6e4c8.zip | |
Unify validity checks into a single query
Previously, there were two queries to check whether a type allows the 0x01 or zeroed bitpattern. I am planning on adding a further initness to check, truly uninit for MaybeUninit, which would make this three queries. This seems overkill for such a small feature, so this PR unifies them into one.
| -rw-r--r-- | src/intrinsics/mod.rs | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/intrinsics/mod.rs b/src/intrinsics/mod.rs index 6feb3a7732e..f00e9321070 100644 --- a/src/intrinsics/mod.rs +++ b/src/intrinsics/mod.rs @@ -21,7 +21,8 @@ mod simd; pub(crate) use cpuid::codegen_cpuid_call; pub(crate) use llvm::codegen_llvm_intrinsic_call; -use rustc_middle::ty::layout::HasParamEnv; +use rustc_middle::ty; +use rustc_middle::ty::layout::{HasParamEnv, InitKind}; use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::subst::SubstsRef; use rustc_span::symbol::{kw, sym, Symbol}; @@ -642,7 +643,7 @@ fn codegen_regular_intrinsic_call<'tcx>( if intrinsic == sym::assert_zero_valid && !fx .tcx - .permits_zero_init(fx.param_env().and(ty)) + .check_validity_of_init((InitKind::Zero, fx.param_env().and(ty))) .expect("expected to have layout during codegen") { with_no_trimmed_paths!({ @@ -661,7 +662,10 @@ fn codegen_regular_intrinsic_call<'tcx>( if intrinsic == sym::assert_mem_uninitialized_valid && !fx .tcx - .permits_uninit_init(fx.param_env().and(ty)) + .check_validity_of_init(( + InitKind::UninitMitigated0x01Fill, + fx.param_env().and(ty), + )) .expect("expected to have layout during codegen") { with_no_trimmed_paths!({ |