Skip to content
Commit d3f1f7b6 authored by Juneyoung Lee's avatar Juneyoung Lee
Browse files

[EarlyCSE] Use m_LogicalAnd/Or matchers to handle branch conditions

EarlyCSE's handleBranchCondition says:

```
// If the condition is AND operation, we can propagate its operands into the
// true branch. If it is OR operation, we can propagate them into the false
// branch.
```

This holds for the corresponding select patterns as well.

This is a part of an ongoing work for disabling buggy select->and/or transformations.
See llvm.org/pr48353 and D93065 for more context

Proof:
and: https://alive2.llvm.org/ce/z/MQWodU
or: https://alive2.llvm.org/ce/z/9GLbB_

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D93842
parent f1d648b9
Loading
Loading
Loading
Loading
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please to comment