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archived-llvm-mirror/lib/Transforms/Instrumentation
Alexander Potapenko 9b92317c0b [MSan] fix the types of RegSaveAreaPtrPtr and OverflowArgAreaPtrPtr
Despite their names, RegSaveAreaPtrPtr and OverflowArgAreaPtrPtr
used to be i8* instead of i8**.

This is important, because these pointers are dereferenced twice
(first in CreateLoad(), then in getShadowOriginPtr()), but for some
reason MSan allowed this - most certainly because it was possible
to optimize getShadowOriginPtr() away at compile time.

Differential revision: https://reviews.llvm.org/D44520

llvm-svn: 327830
2018-03-19 10:08:04 +00:00
..