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| author | Valentin Churavy <v.churavy@gmail.com> | 2019-12-14 10:33:30 -0500 |
|---|---|---|
| committer | Valentin Churavy <v.churavy@gmail.com> | 2019-12-16 04:23:32 -0500 |
| commit | 5c29e8c65fe372b0239f32b38a0299d9abef3167 (patch) | |
| tree | 934ab5083e1d5ecfd74e8d9f5d4359c921c1d3d3 /llvm/lib/Transforms/Utils/BasicBlockUtils.cpp | |
| parent | 049f9672d8566f0d0a115f11e2a53018ea502b10 (diff) | |
| download | bcm5719-llvm-5c29e8c65fe372b0239f32b38a0299d9abef3167.tar.gz bcm5719-llvm-5c29e8c65fe372b0239f32b38a0299d9abef3167.zip | |
[CodegenPrepare] Guard against degenerate branches
Summary:
Guard against a potential crash observed in https://github.com/JuliaLang/julia/issues/32994#issuecomment-524249628
If two branches are collapsed we can encounter a degenerate conditional branch `TBB==FBB`.
The subsequent code assumes that they differ, so we exit out early.
Reviewers: ributzka, spatel
Subscribers: loladiro, dexonsmith, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66657
Diffstat (limited to 'llvm/lib/Transforms/Utils/BasicBlockUtils.cpp')
0 files changed, 0 insertions, 0 deletions
