| Issue |
149018
|
| Summary |
Replace isSupportedInstr with RISCVII:elementsDependOnVL in RISCVVLOptimizer
|
| Labels |
backend:RISC-V
|
| Assignees |
mikhailramalho
|
| Reporter |
lukel97
|
RISCVII::elementsDependOnVL uses TS flags defined in tablegen to determine if it's safe to reduce the VL of a pseudo, and RISCVVectorPeephole already uses it in it's implementation of VL reduction.
Now that we've added pretty much all pseudos to isSupportedInstr (#147647), we should look at reusing this.
We need to make sure that other extension tablegen files have `ElementsDependOn` set correctly, e.g. RISCVInstrInfoXRivos.td, RISCVInstrInfoXSf.td, RISCVInstrInfoXSfmm.td, etc.
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