bjoernager/rust
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Auto merge of #83610 - bjorn3:driver_cleanup, r=cjgillot

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rustc_driver cleanup

Best reviewed one commit at a time.
This commit is contained in:
bors 2021-05-12 08:38:03 +00:00
commit ac923d94f8
16 changed files with 168 additions and 224 deletions
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31
compiler/rustc_codegen_llvm/src/attributes.rs
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@ -4,12 +4,10 @@ use std::ffi::CString;
use cstr::cstr;
use rustc_codegen_ssa::traits::*;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::small_c_str::SmallCStr;
use rustc_hir::def_id::DefId;
use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
use rustc_middle::ty::layout::HasTyCtxt;
use rustc_middle::ty::query::Providers;
use rustc_middle::ty::{self, TyCtxt};
use rustc_session::config::OptLevel;
use rustc_session::Session;
@ -355,35 +353,6 @@ pub fn from_fn_attrs(cx: &CodegenCx<'ll, 'tcx>, llfn: &'ll Value, instance: ty::
}
}
pub fn provide_both(providers: &mut Providers) {
providers.wasm_import_module_map = |tcx, cnum| {
// Build up a map from DefId to a `NativeLib` structure, where
// `NativeLib` internally contains information about
// `#[link(wasm_import_module = "...")]` for example.
let native_libs = tcx.native_libraries(cnum);
let def_id_to_native_lib = native_libs
.iter()
.filter_map(|lib| lib.foreign_module.map(|id| (id, lib)))
.collect::<FxHashMap<_, _>>();
let mut ret = FxHashMap::default();
for (def_id, lib) in tcx.foreign_modules(cnum).iter() {
let module = def_id_to_native_lib.get(&def_id).and_then(|s| s.wasm_import_module);
let module = match module {
Some(s) => s,
None => continue,
};
ret.extend(lib.foreign_items.iter().map(|id| {
assert_eq!(id.krate, cnum);
(*id, module.to_string())
}));
}
ret
};
}
fn wasm_import_module(tcx: TyCtxt<'_>, id: DefId) -> Option<CString> {
tcx.wasm_import_module_map(id.krate).get(&id).map(|s| CString::new(&s[..]).unwrap())
}