A MIR transform that checks pointers are aligned

1 files changed, 12 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_cranelift/src/base.rs b/compiler/rustc_codegen_cranelift/src/base.rs
index 2107ae147e9..67ed2b33c5a 100644
--- a/compiler/rustc_codegen_cranelift/src/base.rs
+++ b/compiler/rustc_codegen_cranelift/src/base.rs
@@ -379,6 +379,18 @@ fn codegen_fn_body(fx: &mut FunctionCx<'_, '_, '_>, start_block: Block) {
                             source_info.span,
                         );
                     }
+                    AssertKind::MisalignedPointerDereference { ref required, ref found } => {
+                        let required = codegen_operand(fx, required).load_scalar(fx);
+                        let found = codegen_operand(fx, found).load_scalar(fx);
+                        let location = fx.get_caller_location(source_info).load_scalar(fx);
+
+                        codegen_panic_inner(
+                            fx,
+                            rustc_hir::LangItem::PanicBoundsCheck,
+                            &[required, found, location],
+                            source_info.span,
+                        );
+                    }
                     _ => {
                         let msg_str = msg.description();
                         codegen_panic(fx, msg_str, source_info);