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Rollup merge of #108126 - tshepang:nits, r=lcnr

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fix a line, and do a consistency fix
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Matthias Krüger 2023-02-17 12:39:06 +01:00 committed by GitHub
commit e53bd4c282
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2 changed files with 4 additions and 3 deletions
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4
compiler/rustc_codegen_llvm/src/consts.rs
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@ -521,7 +521,7 @@ impl<'ll> StaticMethods for CodegenCx<'ll, '_> {
// The semantics of #[used] in Rust only require the symbol to make it into the
// object file. It is explicitly allowed for the linker to strip the symbol if it
// is dead, which means we are allowed use `llvm.compiler.used` instead of
// is dead, which means we are allowed to use `llvm.compiler.used` instead of
// `llvm.used` here.
//
// Additionally, https://reviews.llvm.org/D97448 in LLVM 13 started emitting unique
@ -532,7 +532,7 @@ impl<'ll> StaticMethods for CodegenCx<'ll, '_> {
// That said, we only ever emit these when compiling for ELF targets, unless
// `#[used(compiler)]` is explicitly requested. This is to avoid similar breakage
// on other targets, in particular MachO targets have *their* static constructor
// lists broken if `llvm.compiler.used` is emitted rather than llvm.used. However,
// lists broken if `llvm.compiler.used` is emitted rather than `llvm.used`. However,
// that check happens when assigning the `CodegenFnAttrFlags` in `rustc_hir_analysis`,
// so we don't need to take care of it here.
self.add_compiler_used_global(g);

3
compiler/rustc_middle/src/middle/codegen_fn_attrs.rs
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@ -91,7 +91,8 @@ bitflags! {
/// the MIR `InstrumentCoverage` pass and not added to the coverage map
/// during codegen.
const NO_COVERAGE = 1 << 15;
/// `#[used(linker)]`: indicates that LLVM nor the linker can eliminate this function.
/// `#[used(linker)]`:
/// indicates that neither LLVM nor the linker will eliminate this function.
const USED_LINKER = 1 << 16;
/// `#[rustc_deallocator]`: a hint to LLVM that the function only deallocates memory.
const DEALLOCATOR = 1 << 17;