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Commit 1a10ae0d authored by Alexander Potapenko's avatar Alexander Potapenko
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[MSan] store origins for variadic function parameters in __msan_va_arg_origin_tls 

Add the __msan_va_arg_origin_tls TLS array to keep the origins for
variadic function parameters.
Change the instrumentation pass to store parameter origins in this array.

llvm-svn: 341528
parent e6918ca2
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