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| author | Piotr Fusik <p.fusik@samsung.com> | 2025-08-14 09:59:43 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-08-14 09:59:43 +0200 |
| commit | 18782db4c95b80fd3a619826558db118bb874325 (patch) | |
| tree | acad354f7d688f6f2733444a0662bc88cb4ba343 /lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h | |
| parent | 7b904b09eb2368d8e3af77df4753a1068835db54 (diff) | |
| download | llvm-18782db4c95b80fd3a619826558db118bb874325.zip llvm-18782db4c95b80fd3a619826558db118bb874325.tar.gz llvm-18782db4c95b80fd3a619826558db118bb874325.tar.bz2 | |
[RISCV] Improve instruction selection for most significant bit extraction (#151687)
(seteq (and X, 1<<XLEN-1), 0) -> (xori (srli X, XLEN-1), 1)
(seteq (and X, 1<<31), 0) -> (xori (srliw X, 31), 1) // RV64
(setlt X, 0) -> (srli X, XLEN-1) // SRLI is compressible
(setlt (sext X), 0) -> (srliw X, 31) // RV64
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h')
0 files changed, 0 insertions, 0 deletions