llvm/llvm-project
[NVPTX] Implement `TLI.isTruncateFree(EVT, EVT)` and `TLI.isZExtFree()`
Chiusa
#114.339 aperta il 31 ott 2024
backend:NVPTXgood first issue
Metriche repository
- Star
- (26.378 stelle)
- Metriche merge PR
- (Metriche PR in attesa)
Descrizione
NVPTX currently does not override TLI.isTruncateFree(EVT, EVT) and TLI.isZExtFree(), and it probably should.
zext/truncate between i32/i64 can probably be considered free, as the values already live in separate 32-bit registers in hardware.
Originally posted by @Artem-B in https://github.com/llvm/llvm-project/pull/98666#discussion_r1681805956