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| author | Pierre van Houtryve <pierre.vanhoutryve@amd.com> | 2024-05-03 10:26:54 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-03 10:26:54 +0200 |
| commit | ed299b3efd669c02fa37773d1ae49fca3556f729 (patch) | |
| tree | 71d76c1821ffdc5b9c8b2982230400cbf334e6ea /llvm/lib/Bitcode/Reader | |
| parent | 8480c93e36b33c237540e20c97cda8fb3d196f1f (diff) | |
[GlobalISel] Optimize ULEB128 usage (#90565)
- Remove some cases where ULEB128 isn't needed
- Add a fastDecodeULEB128 tailored for GlobalISel which does unchecked
decoding optimized for the common case, which is 1 byte values. We
rarely have >1 byte Inst IDs, OpIdx, etc. and those are the most common
ULEB users by far.
This specific LEB128 decode function generates almost 2x less
instructions than the generic one.
Diffstat (limited to 'llvm/lib/Bitcode/Reader')
0 files changed, 0 insertions, 0 deletions