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86b699c278
x86 Windows uses the '_' prefix for all global symbols, and this was mistakenly being applied to frameescape labels, which are not externally visible global symbols. They use the private global prefix 'L'. The *right* way to fix this is probably to stop masquerading this label as an ExternalSymbol and create a new SDNode type. These labels are not "external", and we know they will be resolved by assembly time. Having a custom SDNode type would allow us to do better X86 address mode matching, so it's probably worth doing eventually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236123 91177308-0d34-0410-b5e6-96231b3b80d8
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