Gabor Greif 0bd120e817 Introduce a typing refinenement on tagged data ...

using the 'volatile' qualifier. This should not have any operational consequences
on code, because tags should always be stripped off (giving a non-volatile pointer)
before dereferencing. The new qualification is there to catch some attempts to use
tagged pointers in a context where an untagged pointer is appropriate.

Notably this approach does not catch dereferencing of tagged pointers, but helps
in separating the two concepts a bit.

llvm-svn: 57641

2008-10-16 15:33:02 +00:00

4.5 KiB

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