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Add the no-builtins attribute to functions when no_builtins is applied at the crate level.

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When `no_builtins` is applied at the crate level, we should add the
`no-builtins` attribute to each function to ensure it takes effect in LTO.
This commit is contained in:
DianQK 2023-07-18 22:15:47 +08:00
parent f0580df0d5
commit cc08749df2
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8 changed files with 68 additions and 1 deletions
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2
compiler/rustc_middle/src/middle/codegen_fn_attrs.rs
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@ -100,6 +100,8 @@ bitflags! {
const REALLOCATOR = 1 << 18;
/// `#[rustc_allocator_zeroed]`: a hint to LLVM that the function only allocates zeroed memory.
const ALLOCATOR_ZEROED = 1 << 19;
/// `#[no_builtins]`: indicates that disable implicit builtin knowledge of functions for the function.
const NO_BUILTINS = 1 << 20;
}
}