dougk added a comment.
Suppression of sanitizing is necessary if the variable is magically a
memory-mapped device I/O address.
The linker can arrange for this to be the case using fancy scripts, or even
just as simple as a section attribute that requires that you take up exactly a
certain
dougk added a comment.
I think it probably works to have the attribute appertain to any sanitizer. I
did not know that it did, so I conservatively assumed that it didn't. I'll go
ahead and make things consistent, and confirm that it dtrt.
https://reviews.llvm.org/D26454
