2 files changed, 10 insertions, 3 deletions
diff --git a/compiler/rustc_codegen_gcc/src/abi.rs b/compiler/rustc_codegen_gcc/src/abi.rs
index 2bbb199c899..a8b1e70e2bb 100644
--- a/compiler/rustc_codegen_gcc/src/abi.rs
+++ b/compiler/rustc_codegen_gcc/src/abi.rs
@@ -48,8 +48,8 @@ impl GccType for CastTarget {
         let mut args: Vec<_> = self
             .prefix
             .iter()
-            .flat_map(|option_kind| {
-                option_kind.map(|kind| Reg { kind, size: self.prefix_chunk_size }.gcc_type(cx))
+            .flat_map(|option_reg| {
+                option_reg.map(|reg| reg.gcc_type(cx))
             })
             .chain((0..rest_count).map(|_| rest_gcc_unit))
             .collect();
diff --git a/compiler/rustc_codegen_gcc/src/asm.rs b/compiler/rustc_codegen_gcc/src/asm.rs
index 7c3ed3c5ee9..6a3b94a0d70 100644
--- a/compiler/rustc_codegen_gcc/src/asm.rs
+++ b/compiler/rustc_codegen_gcc/src/asm.rs
@@ -118,7 +118,14 @@ 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], _instance: Instance<'_>) {
+    fn codegen_inline_asm(&mut self, template: &[InlineAsmTemplatePiece], rust_operands: &[InlineAsmOperandRef<'tcx, Self>], options: InlineAsmOptions, span: &[Span], _instance: Instance<'_>, _dest_catch_funclet: Option<(Self::BasicBlock, Self::BasicBlock, Option<&Self::Funclet>)>) {
+        if options.contains(InlineAsmOptions::MAY_UNWIND) {
+            self.sess()
+                .struct_span_err(span[0], "GCC backend does not support unwinding from inline asm")
+                .emit();
+            return;
+        }
+
         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);