[all-commits] [llvm/llvm-project] 0eaecb: [clang][dataflow] Handle return statements

[Sam Estep via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0eaecbbc231883b43d3ac761b276d9f505c89c27
      https://github.com/llvm/llvm-project/commit/0eaecbbc231883b43d3ac761b276d9f505c89c27
  Author: Sam Estep <sam at samestep.com>
  Date:   2022-08-04 (Thu, 04 Aug 2022)

  Changed paths:
    M clang/include/clang/Analysis/FlowSensitive/DataflowAnalysisContext.h
    M clang/include/clang/Analysis/FlowSensitive/DataflowEnvironment.h
    M clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
    M clang/lib/Analysis/FlowSensitive/Transfer.cpp
    M clang/unittests/Analysis/FlowSensitive/TransferTest.cpp

  Log Message:
  -----------
  [clang][dataflow] Handle return statements

This patch adds a `ReturnLoc` field to the `Environment`, serving a similar to the `ThisPointeeLoc` field in the `DataflowAnalysisContext`. It then uses that (along with a new `VisitReturnStmt` method in `TransferVisitor`) to handle non-`void`-returning functions in context-sensitive analysis.

Reviewed By: ymandel, sgatev

Differential Revision: https://reviews.llvm.org/D130600