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| author | Justin Fargnoli <34139864+justinfargnoli@users.noreply.github.com> | 2023-10-22 15:34:39 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-10-22 15:34:39 -0700 |
| commit | 6833a3808f7ba14247f3ce13d68df0bca991f354 (patch) | |
| tree | f6c461346e6e9514677ffdf45fd3b6336028f9cf /llvm/lib/Transforms/Utils/LoopUnroll.cpp | |
| parent | 508a697acd1804cd965d888ffa0c4d404c4095b3 (diff) | |
| download | llvm-6833a3808f7ba14247f3ce13d68df0bca991f354.zip llvm-6833a3808f7ba14247f3ce13d68df0bca991f354.tar.gz llvm-6833a3808f7ba14247f3ce13d68df0bca991f354.tar.bz2 | |
[mlir][DeadCodeAnalysis] Don't Require `RegionBranchTerminatorOpInterface` in `visitRegionTerminator()` (#69043)
Fix for a crash reported in #64975.
The crash occurs in the cast located
[here](https://github.com/llvm/llvm-project/blob/ece5dd101c7e4dc2fd23428abd312f75fd3d3eaf/mlir/lib/Analysis/DataFlow/DeadCodeAnalysis.cpp#L262)
because `llvm.unreachable` doesn't implement
`RegionBranchTerminatorOpInterface`.
The crash is caused by `DeadCodeAnalysis` assuming that
`isa<RegionBranchOpInterface>(op->getParentOp())` implies
`isa<RegionBranchTerminatorOpInterface>(op)` in
`DeadCodeAnalysis::visit()`.
This patch tried to fix this by enabling the analysis to proceed
regardless of whether `op` is a `RegionBranchTerminatorOpInterface`.
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnroll.cpp')
0 files changed, 0 insertions, 0 deletions