diff options
| author | Manish Kausik H <46352931+Nirhar@users.noreply.github.com> | 2024-07-08 18:31:32 +0530 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-07-08 14:01:32 +0100 |
| commit | 69192e0193e60c169c7776f444362dffba31eb7d (patch) | |
| tree | dcccfa95f356e41810f0ff7bd994ade595479574 /llvm/lib/Object/ELFObjectFile.cpp | |
| parent | cb72aecea6e7da49c7a7fbeb1bde4e401324b9ba (diff) | |
| download | llvm-69192e0193e60c169c7776f444362dffba31eb7d.zip llvm-69192e0193e60c169c7776f444362dffba31eb7d.tar.gz llvm-69192e0193e60c169c7776f444362dffba31eb7d.tar.bz2 | |
[LegalizeDAG] Optimize CodeGen for `ISD::CTLZ_ZERO_UNDEF` (#83039)
Previously we had the same instructions being generated for `ISD::CTLZ` and `ISD::CTLZ_ZERO_UNDEF` which did not take advantage of the fact that zero is an invalid input for `ISD::CTLZ_ZERO_UNDEF`. This commit separates codegen for the two cases to allow for the optimization for the latter case.
The details of the optimization are outlined in #82075
Fixes #82075
Co-authored-by: Manish Kausik H <hmamishkausik@gmail.com>
Diffstat (limited to 'llvm/lib/Object/ELFObjectFile.cpp')
0 files changed, 0 insertions, 0 deletions