[all-commits] [llvm/llvm-project] 2c0fc0: [DFAJumpThreading] Handle circular determinator (#...
XChy via All-commits
all-commits at lists.llvm.org
Mon Jan 15 17:53:04 PST 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 2c0fc0f37f29d54e0376a5e1f7cbb386a37a177d
https://github.com/llvm/llvm-project/commit/2c0fc0f37f29d54e0376a5e1f7cbb386a37a177d
Author: XChy <xxs_chy at outlook.com>
Date: 2024-01-15 (Mon, 15 Jan 2024)
Changed paths:
M llvm/lib/Transforms/Scalar/DFAJumpThreading.cpp
M llvm/test/Transforms/DFAJumpThreading/dfa-jump-threading-transform.ll
Log Message:
-----------
[DFAJumpThreading] Handle circular determinator (#78177)
Fixes the buildbot failure in
https://github.com/llvm/llvm-project/pull/78134#issuecomment-1892195197
When we meet the path with single `determinator`, the determinator
actually takes itself as a predecessor. Thus, we need to let `Prev` be
the determinator when `PathBBs` has only one element.
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