Properly check target_features not to trigger an assertion

Author: JohnTitor

compiler/rustc_codegen_gcc/src/asm.rs

@@ -118,7 +118,7 @@ impl<'a, 'gcc, 'tcx> AsmBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tcx> {
         true
     }
 
-    fn codegen_inline_asm(&mut self, template: &[InlineAsmTemplatePiece], rust_operands: &[InlineAsmOperandRef<'tcx, Self>], options: InlineAsmOptions, _span: &[Span]) {
+    fn codegen_inline_asm(&mut self, template: &[InlineAsmTemplatePiece], rust_operands: &[InlineAsmOperandRef<'tcx, Self>], options: InlineAsmOptions, _span: &[Span], _instance: Instance<'_>) {
         let asm_arch = self.tcx.sess.asm_arch.unwrap();
         let is_x86 = matches!(asm_arch, InlineAsmArch::X86 | InlineAsmArch::X86_64);
         let att_dialect = is_x86 && options.contains(InlineAsmOptions::ATT_SYNTAX);

compiler/rustc_codegen_llvm/src/asm.rs

@@ -13,7 +13,7 @@ use rustc_codegen_ssa::traits::*;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir as hir;
 use rustc_middle::ty::layout::TyAndLayout;
-use rustc_middle::{bug, span_bug};
+use rustc_middle::{bug, span_bug, ty::Instance};
 use rustc_span::{Pos, Span, Symbol};
 use rustc_target::abi::*;
 use rustc_target::asm::*;
@@ -120,6 +120,7 @@ impl AsmBuilderMethods<'tcx> for Builder<'a, 'll, 'tcx> {
         operands: &[InlineAsmOperandRef<'tcx, Self>],
         options: InlineAsmOptions,
         line_spans: &[Span],
+        instance: Instance<'_>,
     ) {
         let asm_arch = self.tcx.sess.asm_arch.unwrap();
 
@@ -135,7 +136,10 @@ impl AsmBuilderMethods<'tcx> for Builder<'a, 'll, 'tcx> {
                     let is_target_supported = |reg_class: InlineAsmRegClass| {
                         for &(_, feature) in reg_class.supported_types(asm_arch) {
                             if let Some(feature) = feature {
-                                if self.tcx.sess.target_features.contains(&Symbol::intern(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)
                                 {
                                     return true;
                                 }

compiler/rustc_codegen_ssa/src/mir/block.rs

@@ -845,6 +845,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
         options: ast::InlineAsmOptions,
         line_spans: &[Span],
         destination: Option<mir::BasicBlock>,
+        instance: Instance<'_>,
     ) {
         let span = terminator.source_info.span;
 
@@ -898,7 +899,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
             })
             .collect();
 
-        bx.codegen_inline_asm(template, &operands, options, line_spans);
+        bx.codegen_inline_asm(template, &operands, options, line_spans, instance);
 
         if let Some(target) = destination {
             helper.funclet_br(self, &mut bx, target);
@@ -1029,6 +1030,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
                     options,
                     line_spans,
                     destination,
+                    self.instance,
                 );
             }
         }

compiler/rustc_codegen_ssa/src/traits/asm.rs

@@ -58,6 +58,7 @@ pub trait AsmBuilderMethods<'tcx>: BackendTypes {
         operands: &[InlineAsmOperandRef<'tcx, Self>],
         options: InlineAsmOptions,
         line_spans: &[Span],
+        instance: Instance<'_>,
     );
 }