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Change type of box_noalias to bool

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This commit is contained in:
Tomasz Miąsko 2023-01-06 00:00:00 +00:00
parent 78075e1e26
commit 72f8d6a659
3 changed files with 3 additions and 3 deletions
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2
compiler/rustc_interface/src/tests.rs
View File

@ -715,7 +715,7 @@ fn test_unstable_options_tracking_hash() {
tracked!(asm_comments, true);
tracked!(assume_incomplete_release, true);
tracked!(binary_dep_depinfo, true);
tracked!(box_noalias, Some(false));
tracked!(box_noalias, false);
tracked!(
branch_protection,
Some(BranchProtection {

2
compiler/rustc_session/src/options.rs
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@ -1255,7 +1255,7 @@ options! {
binary_dep_depinfo: bool = (false, parse_bool, [TRACKED],
"include artifacts (sysroot, crate dependencies) used during compilation in dep-info \
(default: no)"),
box_noalias: Option<bool> = (None, parse_opt_bool, [TRACKED],
box_noalias: bool = (true, parse_bool, [TRACKED],
"emit noalias metadata for box (default: yes)"),
branch_protection: Option<BranchProtection> = (None, parse_branch_protection, [TRACKED],
"set options for branch target identification and pointer authentication on AArch64"),

2
compiler/rustc_ty_utils/src/abi.rs
View File

@ -254,7 +254,7 @@ fn adjust_for_rust_scalar<'tcx>(
// The aliasing rules for `Box<T>` are still not decided, but currently we emit
// `noalias` for it. This can be turned off using an unstable flag.
// See https://github.com/rust-lang/unsafe-code-guidelines/issues/326
let noalias_for_box = cx.tcx.sess.opts.unstable_opts.box_noalias.unwrap_or(true);
let noalias_for_box = cx.tcx.sess.opts.unstable_opts.box_noalias;
// LLVM prior to version 12 had known miscompiles in the presence of noalias attributes
// (see #54878), so it was conditionally disabled, but we don't support earlier