[clang] [lldb] [llvm] [llvm][TargetParser] Return StringMap from getHostCPUFeatures (PR #97824)

[Phoebe Wang via cfe-commits]

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@@ -13,6 +13,7 @@
 #ifndef LLVM_TARGETPARSER_HOST_H
 #define LLVM_TARGETPARSER_HOST_H
 
+#include <optional>
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phoebewang wrote:

ditto

https://github.com/llvm/llvm-project/pull/97824