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| author | Daniil Suchkov <suc-daniil@yandex.ru> | 2020-05-25 15:06:12 +0700 |
|---|---|---|
| committer | Daniil Suchkov <suc-daniil@yandex.ru> | 2020-05-27 18:25:18 +0700 |
| commit | 706b22e3e446621b20befe1094c26e4eda133bc9 (patch) | |
| tree | bfe28fa21d65422175585fd29cb34d7f2448d616 /llvm/lib/Analysis/LoopAccessAnalysis.cpp | |
| parent | d804b334ed0f1c88b90ab028541582e35ba3c172 (diff) | |
| download | llvm-706b22e3e446621b20befe1094c26e4eda133bc9.zip llvm-706b22e3e446621b20befe1094c26e4eda133bc9.tar.gz llvm-706b22e3e446621b20befe1094c26e4eda133bc9.tar.bz2 | |
[SimpleLoopUnswitch] Drop uses of instructions before block deletion
Currently if instructions defined in a block are used in unreachable
blocks and SimpleLoopUnswitch attempts deleting the block, it triggers
assertion "Uses remain when a value is destroyed!".
This patch fixes it by replacing all uses of instructions from BB with
undefs before BB deletion.
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D80551
Diffstat (limited to 'llvm/lib/Analysis/LoopAccessAnalysis.cpp')
0 files changed, 0 insertions, 0 deletions