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| author | Florian Hahn <flo@fhahn.com> | 2024-11-21 10:25:04 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-11-21 10:25:04 +0000 |
| commit | ef102b4a6333a304e36dc623d5381257a7ef1ed6 (patch) | |
| tree | 5239d81e77ce6186f69e3bacd748d76b45c63f0a /clang/unittests/Serialization/ModuleCacheTest.cpp | |
| parent | eb48e1100a1f9dc26c6f2e56301c0a55394465c5 (diff) | |
| download | llvm-ef102b4a6333a304e36dc623d5381257a7ef1ed6.zip llvm-ef102b4a6333a304e36dc623d5381257a7ef1ed6.tar.gz llvm-ef102b4a6333a304e36dc623d5381257a7ef1ed6.tar.bz2 | |
[MachineLICM] Don't allow hoisting invariant loads across mem barrier. (#116987)
The improvements in 63917e1 / #70796 do not check for memory
barriers/unmodelled sideeffects, which means we may incorrectly hoist
loads across memory barriers.
Fix this by checking any machine instruction in the loop is a load-fold
barrier.
PR: https://github.com/llvm/llvm-project/pull/116987
Diffstat (limited to 'clang/unittests/Serialization/ModuleCacheTest.cpp')
0 files changed, 0 insertions, 0 deletions