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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 | 025d2a147ff3dcde8f00ad5bc43b446837bd0240 (patch) | |
| tree | c762a9797ea8144815ebbf3f722ecd9005c04b43 /compiler/rustc_codegen_cranelift | |
| parent | b869e84e581612f4a30a4bca63bd9e90e9a17003 (diff) | |
| download | rust-025d2a147ff3dcde8f00ad5bc43b446837bd0240.tar.gz | |
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.
Diffstat (limited to 'compiler/rustc_codegen_cranelift')
| -rw-r--r-- | compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs index 6feb3a7732e..f00e9321070 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs +++ b/compiler/rustc_codegen_cranelift/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!({ |