facebook/infer

DEAD STORE reports many harmless cases like int i = 0xFFFFFFFF; i = SomeFunc();

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#1,083 创建于 2019年4月10日

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cgood first taskhelp wanted

描述

infer version v0.15.0 in my case, 0xFFFF or 0xFFFFFFFF is a common initializer and there are a lot of this semantics in our code. I would like to ignore those harmless. but if I turn off liveness checker, I worry about missing some truely harmful bugs. Does Infer provide some filtering option or method?

贡献者指南

技术栈
无
领域
tooling
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Familiarity with InferBasic knowledge of static analysis
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
Investigate Infer's dead store detection logic in the liveness checker (likely in OCaml source). Determine if there is an existing filtering mechanism or if one can be added via command line options. Review the discussion in issue comments for maintainer suggestions. Propose a configuration option to ignore initializations with constant literals like 0xFFFFFFFF prior to overwriting.