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| author | Sebastian Pop <spop@nvidia.com> | 2025-01-29 22:53:24 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-29 22:53:24 -0600 |
| commit | 4b2d6157744ca7693e6e904bd53d435df1ff6ee8 (patch) | |
| tree | c6c89d613f4f923d8219b8049926c0da5b8ad359 /clang/lib/CodeGen/BackendUtil.cpp | |
| parent | c4a019747c98ad9326a675d3cb5a70311ba170a2 (diff) | |
| download | llvm-4b2d6157744ca7693e6e904bd53d435df1ff6ee8.zip llvm-4b2d6157744ca7693e6e904bd53d435df1ff6ee8.tar.gz llvm-4b2d6157744ca7693e6e904bd53d435df1ff6ee8.tar.bz2 | |
[DA] use alias analysis cross iteration mode (#116628)
This patch fixes two bugs:
https://github.com/llvm/llvm-project/issues/41488
https://github.com/llvm/llvm-project/issues/53942
The dependence analysis assumes that the base address of array accesses
is invariant across loop iterations. In both bugs the base address
evolves following loop iterations: the base address flip-flops between
two different memory objects.
The patch uses the cross iteration mode of alias analysis to disambiguate the
base objects.
Diffstat (limited to 'clang/lib/CodeGen/BackendUtil.cpp')
0 files changed, 0 insertions, 0 deletions