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-rw-r--r--compiler/rustc_codegen_gcc/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs
index 6455bcec685..9d91aab72ab 100644
--- a/compiler/rustc_codegen_gcc/src/lib.rs
+++ b/compiler/rustc_codegen_gcc/src/lib.rs
@@ -393,7 +393,7 @@ impl WriteBackendMethods for GccCodegenBackend {
     unsafe fn optimize(
         _cgcx: &CodegenContext<Self>,
         _dcx: DiagCtxtHandle<'_>,
-        module: &ModuleCodegen<Self::Module>,
+        module: &mut ModuleCodegen<Self::Module>,
         config: &ModuleConfig,
     ) -> Result<(), FatalError> {
         module.module_llvm.context.set_optimization_level(to_gcc_opt_level(config.opt_level));