================
@@ -323,12 +342,13 @@ class ExprEngine {
/// ProcessBranch - Called by CoreEngine. Used to generate successor
/// nodes by processing the 'effects' of a branch condition.
- void processBranch(const Stmt *Condition,
- NodeBuilderContext& BuilderCtx,
- ExplodedNode *Pred,
- ExplodedNodeSet &Dst,
- const CFGBlock *DstT,
- const CFGBlock *DstF);
+ /// If the branch condition is a loop condition, IterationsFinishedInLoop is
+ /// the number of already finished iterations (0, 1, 2...); otherwise it's
+ /// std::nullopt.
----------------
NagyDonat wrote:
> Can't IterationsFinishedInLoop be a state trait?
We could introduce it, but we'd need to maintain a nested stack of loops (1
iteration in that `while`, then 2 iterations in the `for`, then 1 iteration in
this other `for` in the function called there...) to correctly monitor the
number of iterations.
This would make the heuristic introduced in this commit slightly more accurate,
but I think that for practical purposes the current code is already good
enough, so I didn't invest time into implementing this loop iteration count
stack. (However it would be a nice follow-up commit if I have time.)
https://github.com/llvm/llvm-project/pull/109804
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