In program analysis, a polyvariant or context-sensitive analysis (as opposed to a monovariant or context-insensitive analysis) analyzes each function multiple times—typically once at each call site—to improve the precision of the analysis. Polyvariance is common in data-flow and pointer analyses.
Forms of polyvariance include:
Call-site sensitivity The Cartesian product algorithm Object sensitivity Type sensitivity
The first two are more often used for dataflow analyses, the latter two are more frequently used for pointer analyses.
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