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Auto merge of #92731 - bjorn3:asm_support_changes, r=nagisa

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Avoid unnecessary monomorphization of inline asm related functions

This should reduce build time for codegen backends by avoiding duplicated monomorphization of certain inline asm related functions for each passed in closure type.
This commit is contained in:
bors
2022-01-18 14:32:52 +00:00
parent 7bc7be860f 9336fe33d7
commit 9ad5d82f82
21 changed files with 133 additions and 105 deletions
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7
compiler/rustc_codegen_llvm/src/asm.rs
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@@ -13,7 +13,7 @@ use rustc_codegen_ssa::traits::*;
use rustc_data_structures::fx::FxHashMap;
use rustc_middle::ty::layout::TyAndLayout;
use rustc_middle::{bug, span_bug, ty::Instance};
use rustc_span::{Pos, Span, Symbol};
use rustc_span::{Pos, Span};
use rustc_target::abi::*;
use rustc_target::asm::*;
@@ -45,9 +45,8 @@ impl<'ll, 'tcx> AsmBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
for &(_, feature) in reg_class.supported_types(asm_arch) {
if let Some(feature) = feature {
let codegen_fn_attrs = self.tcx.codegen_fn_attrs(instance.def_id());
let feature_name = Symbol::intern(feature);
if self.tcx.sess.target_features.contains(&feature_name)
|| codegen_fn_attrs.target_features.contains(&feature_name)
if self.tcx.sess.target_features.contains(&feature)
|| codegen_fn_attrs.target_features.contains(&feature)
{
return true;
}