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| author | Nikita Popov <npopov@redhat.com> | 2023-08-17 16:37:32 +0200 |
|---|---|---|
| committer | Nikita Popov <npopov@redhat.com> | 2023-09-15 07:04:32 +0200 |
| commit | 7c229f6e85478bb0626a5e598f47b7be94bb50b0 (patch) | |
| tree | 24aa41182c7fdcf6c05d1c14effdce6863de23ad /llvm/lib/CodeGen/AssignmentTrackingAnalysis.cpp | |
| parent | 2c8b6f16a60e99f5a39c55a91fde747e899c5422 (diff) | |
| download | llvm-7c229f6e85478bb0626a5e598f47b7be94bb50b0.zip llvm-7c229f6e85478bb0626a5e598f47b7be94bb50b0.tar.gz llvm-7c229f6e85478bb0626a5e598f47b7be94bb50b0.tar.bz2 | |
[GVN] Invalidate MDA when deduplicating phi nodes
Duplicate phi nodes were being directly removed, without
invalidating MDA. This could result in a new phi node being
allocated at the same address, incorrectly reusing a cache entry.
Fix this by optionally allowing EliminateDuplicatePHINodes() to
collect phi nodes to remove into a vector, which allows GVN to
handle removal itself.
Fixes https://github.com/llvm/llvm-project/issues/64598.
Differential Revision: https://reviews.llvm.org/D158849
Diffstat (limited to 'llvm/lib/CodeGen/AssignmentTrackingAnalysis.cpp')
0 files changed, 0 insertions, 0 deletions