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-rw-r--r--compiler/rustc_codegen_llvm/src/abi.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs
index cc8b3a1a4e4..d4437bd449d 100644
--- a/compiler/rustc_codegen_llvm/src/abi.rs
+++ b/compiler/rustc_codegen_llvm/src/abi.rs
@@ -37,7 +37,7 @@ fn should_use_mutable_noalias(cx: &CodegenCx<'_, '_>) -> bool {
     // LLVM prior to version 12 had known miscompiles in the presence of
     // noalias attributes (see #54878), but we don't support earlier
     // versions at all anymore. We now enable mutable noalias by default.
-    cx.tcx.sess.opts.debugging_opts.mutable_noalias.unwrap_or(true)
+    cx.tcx.sess.opts.unstable_opts.mutable_noalias.unwrap_or(true)
 }
 
 const ABI_AFFECTING_ATTRIBUTES: [(ArgAttribute, llvm::AttributeKind); 1] =