From 5f825ae895adbd2cfeff2fb0fc1a2e411bcac91a Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Mon, 27 Sep 2021 15:59:18 -0400
Subject: [PATCH] rustup

---
 rust-version               | 2 +-
 src/shims/foreign_items.rs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/rust-version b/rust-version
index 26d88f5b07b5..65591aa7ebd9 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-4e880f8cbc191374ce7db335962489f41d6d4e3e
+2b6ed3b675475abc01ce7e68bb75b457f0c85684
diff --git a/src/shims/foreign_items.rs b/src/shims/foreign_items.rs
index 35c151b72f60..6dfdc316ac47 100644
--- a/src/shims/foreign_items.rs
+++ b/src/shims/foreign_items.rs
@@ -597,7 +597,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
                 this.yield_active_thread();
             }
             "llvm.aarch64.isb" if this.tcx.sess.target.arch == "aarch64" => {
-                let &[ref arg] = this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?;
+                let &[ref arg] = this.check_shim(abi, Abi::Unadjusted, link_name, args)?;
                 let arg = this.read_scalar(arg)?.to_i32()?;
                 match arg {
                     15 => { // SY ("full system scope")