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doc: mention that intrinsics should not be called in user code #142439

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Jun 14, 2025
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doc: mention that intrinsics should not be called in user code #142439

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4 changes: 4 additions & 0 deletions library/core/src/intrinsics/mod.rs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,9 @@
//! Compiler intrinsics.
//!
//! The functions in this module are implementation details of `core` and should
//! not be used outside of the standard library. We generally provide access to
//! intrinsics via stable wrapper functions. Use these instead.
//!
//! These are the imports making intrinsics available to Rust code. The actual implementations live in the compiler.
//! Some of these intrinsics are lowered to MIR in <https://github.com/rust-lang/rust/blob/master/compiler/rustc_mir_transform/src/lower_intrinsics.rs>.
//! The remaining intrinsics are implemented for the LLVM backend in <https://github.com/rust-lang/rust/blob/master/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs>
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