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-rw-r--r--llvm/include/llvm/Demangle/DemangleConfig.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/include/llvm/Demangle/DemangleConfig.h b/llvm/include/llvm/Demangle/DemangleConfig.h
index f88618898af..528f538d3e9 100644
--- a/llvm/include/llvm/Demangle/DemangleConfig.h
+++ b/llvm/include/llvm/Demangle/DemangleConfig.h
@@ -62,6 +62,8 @@
#define DEMANGLE_UNREACHABLE __builtin_unreachable()
#elif defined(_MSC_VER)
#define DEMANGLE_UNREACHABLE __assume(false)
+#else
+#define DEMANGLE_UNREACHABLE
#endif
#if __has_attribute(noinline) || DEMANGLE_GNUC_PREREQ(3, 4, 0)
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