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Diffstat (limited to 'compiler/rustc_codegen_ssa/src/back/command.rs')
-rw-r--r--compiler/rustc_codegen_ssa/src/back/command.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_ssa/src/back/command.rs b/compiler/rustc_codegen_ssa/src/back/command.rs
index 383d0579e52..84252386041 100644
--- a/compiler/rustc_codegen_ssa/src/back/command.rs
+++ b/compiler/rustc_codegen_ssa/src/back/command.rs
@@ -166,7 +166,8 @@ impl Command {
         // [1]: https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-createprocessa
         // [2]: https://devblogs.microsoft.com/oldnewthing/?p=41553
 
-        let estimated_command_line_len = self.args.iter().map(|a| a.len()).sum::<usize>();
+        let estimated_command_line_len =
+            self.args.iter().fold(0usize, |acc, a| acc.saturating_add(a.as_encoded_bytes().len()));
         estimated_command_line_len > 1024 * 6
     }
 }