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| author | David Green <david.green@arm.com> | 2025-10-29 07:47:41 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-10-29 07:47:41 +0000 |
| commit | da15b8fc2e169788a965b08c8a7cc870072d71f3 (patch) | |
| tree | 92520646d898ef1f5c179246ef64d71752d70b2b /llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp | |
| parent | 04e78b4ddca78a47bfafdfd99b1f4016906819b1 (diff) | |
| download | llvm-da15b8fc2e169788a965b08c8a7cc870072d71f3.zip llvm-da15b8fc2e169788a965b08c8a7cc870072d71f3.tar.gz llvm-da15b8fc2e169788a965b08c8a7cc870072d71f3.tar.bz2 | |
[AArch64][GlobalISel] Add a constant funnel shift post-legalizer combine. (#151912)
We want to be able to produce extr instructions post-legalization. They
are legal for scalars, acting as a funnel shift with a constant shift
amount. Unfortunately I'm not sure if there is a way currently to
represent that in the legalization rules, but it might be useful for
several operations - to be able to treat and test operands with constant
operands as legal or not.
This adds a change to the existing matchOrShiftToFunnelShift so that
AArch64 can generate such instructions post-legalization providing that
the operation is scalar and the shift amount is constant.
Diffstat (limited to 'llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp')
0 files changed, 0 insertions, 0 deletions