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Commit eb18bc5d authored by Kuba Mracek's avatar Kuba Mracek
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[sanitizer] Use MADV_FREE on Darwin/BSD to release pages to the OS 

MADV_DONTNEED on Linux actually mark the pages as free to be overwritten with zeroes, but on Darwin and BSD, it's just an advisory flag (the OS cannot discard the content). We should use MADV_FREE on Darwin and BSD.

Differential Revision: https://reviews.llvm.org/D40666

llvm-svn: 320659
parent 34ea06b0
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