Evaluation of Compilers’ Capability of Automatic Vectorization Based on Source Code Analysis

Table 5

Analysis and transform methods that are related to Automatic vectorization.

Number	Influence factors	Transform methods
1	Semantics	Dependence analysis, alias analysis, interprocedural analysis
		Loop distribution, if-conversion, scalar expand, scalar rename
		Array rename, loop interchange, instruction schedule, software pipeline
2	Opcode	Strength reduction optimization, instruction fusion
3	Memory	Loop tiling, loop interchange
4	Number of parallel programs	Loop unrolling, loop fusion, redundancy elimination