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Do not access HIR to compute symbol_name.

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This commit is contained in:
Camille GILLOT 2022-03-30 12:13:31 +02:00
parent 69d8183337
commit 0c6e2466f2
1 changed files with 4 additions and 8 deletions
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12
compiler/rustc_symbol_mangling/src/lib.rs
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@ -97,7 +97,6 @@
extern crate rustc_middle;
use rustc_hir::def_id::{CrateNum, LOCAL_CRATE};
use rustc_hir::Node;
use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
use rustc_middle::mir::mono::{InstantiationMode, MonoItem};
use rustc_middle::ty::query::Providers;
@ -168,17 +167,14 @@ fn compute_symbol_name<'tcx>(
debug!("symbol_name(def_id={:?}, substs={:?})", def_id, substs);
// FIXME(eddyb) Precompute a custom symbol name based on attributes.
let is_foreign = if let Some(def_id) = def_id.as_local() {
if let Some(def_id) = def_id.as_local() {
if tcx.proc_macro_decls_static(()) == Some(def_id) {
let stable_crate_id = tcx.sess.local_stable_crate_id();
return tcx.sess.generate_proc_macro_decls_symbol(stable_crate_id);
}
matches!(tcx.hir().get_by_def_id(def_id), Node::ForeignItem(_))
} else {
tcx.is_foreign_item(def_id)
};
}
// FIXME(eddyb) Precompute a custom symbol name based on attributes.
let attrs = tcx.codegen_fn_attrs(def_id);
// Foreign items by default use no mangling for their symbol name. There's a
@ -197,7 +193,7 @@ fn compute_symbol_name<'tcx>(
// show up in the `wasm-import-name` custom attribute in LLVM IR.
//
// [1]: https://bugs.llvm.org/show_bug.cgi?id=44316
if is_foreign
if tcx.is_foreign_item(def_id)
&& (!tcx.sess.target.is_like_wasm
|| !tcx.wasm_import_module_map(def_id.krate).contains_key(&def_id))
{