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-rw-r--r--clang/lib/Driver/ToolChains/Darwin.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains/Darwin.h b/clang/lib/Driver/ToolChains/Darwin.h
index 2dc7c85880f..1b1c358c40a 100644
--- a/clang/lib/Driver/ToolChains/Darwin.h
+++ b/clang/lib/Driver/ToolChains/Darwin.h
@@ -258,6 +258,9 @@ public:
return "";
}
+ // Darwin toolchain uses legacy thin LTO API, which is not
+ // capable of unit splitting.
+ bool canSplitThinLTOUnit() const override { return false; }
/// }
};
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