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Make comments above APIs reflect what they should do.

llvm-svn: 12830
This commit is contained in:
Chris Lattner 2004-04-11 16:42:50 +00:00
parent d0345fb4a1
commit ba50022f83

View File

@ -146,17 +146,17 @@ public:
/// getModRefInfo - Return information about whether two call sites may refer
/// to the same set of memory locations. This function returns NoModRef if
/// the two calls refer to disjoint memory locations, Ref if they both read
/// some of the same memory, Mod if they both write to some of the same
/// memory, and ModRef if they read and write to the same memory.
/// the two calls refer to disjoint memory locations, Ref if CS1 reads memory
/// written by CS2, Mod if CS1 writes to memory read or written by CS2, or
/// ModRef if CS1 might read or write memory accessed by CS2.
///
virtual ModRefResult getModRefInfo(CallSite CS1, CallSite CS2);
/// hasNoModRefInfoForCalls - Return true if the analysis has no mod/ref
/// information for function calls other than "pure" and "const" functions.
/// This can be used by clients to avoid many pointless queries. Remember
/// that if you override this and chain to another analysis, you must make
/// sure that it doesn't have mod/ref info either.
/// information for pairs of function calls (other than "pure" and "const"
/// functions). This can be used by clients to avoid many pointless queries.
/// Remember that if you override this and chain to another analysis, you must
/// make sure that it doesn't have mod/ref info either.
///
virtual bool hasNoModRefInfoForCalls() const { return false; }