commit | c54cff0e6e4d1a0d0a2df7c1ce3d96cdd554763e | [log] [tgz] |
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author | Nikita Popov <npopov@redhat.com> | Fri Jul 05 09:13:59 2024 +0200 |
committer | Nikita Popov <github@npopov.com> | Fri Jul 05 16:02:28 2024 +0200 |
tree | 2852763c500803c3fb58213ee2b116accf8c5d2d | |
parent | 75ec529b35a9cfef7b6cc5393453750883981b5a [diff] |
[Mem2Reg] Always allow single-store optimization for dominating stores In #97711 the single-store optimization was disabled for the case where the value is potentially poison, as this may produce incorrect results for loads of uninitialized memory. However, this resulted in compile-time regressions. Address these by still allowing the single-store optimization to occur in cases where the store dominates the load, as we know that such a load will always read initialized memory. (cherry picked from commit daaea128bb84f8ed7b9de36aa3a51f33b775c05a)
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