struct AnalysisSetKey

Declaration

struct AnalysisSetKey { /* full declaration omitted */ };

Description

A special type used to provide an address that identifies a set of related analyses. These sets are primarily used below to mark sets of analyses as preserved. For example, a transformation can indicate that it preserves the CFG of a function by preserving the appropriate AnalysisSetKey. An analysis that depends only on the CFG can then check if that AnalysisSetKey is preserved; if it is, the analysis knows that it itself is preserved.

Declared at: llvm/include/llvm/IR/PassManager.h:81