Ga1axy0 opened a new pull request, #19915:
URL: https://github.com/apache/tvm/pull/19915
RISC-V target tags use the LLVM codegen backend, so their target kind should
remain "llvm". However, the target metadata should still identify the target
as a RISC-V CPU rather than an ARM CPU.
Previously, the RISC-V tag helper used the ARM CPU keys and device metadata,
so Target("riscv/...") expanded with keys ["arm_cpu", "cpu"] and device
"arm_cpu".
```python
{"kind": "llvm", "keys": ["arm_cpu", "cpu"], "device": "arm_cpu"}
```
This is misleading for code that inspects target keys or device metadata to
distinguish CPU families.
This change updates the RISC-V tag helper to use keys ["riscv_cpu", "cpu"]
and device "riscv_cpu", while keeping kind="llvm". It also adds the SpacemiT
K3 RISC-V target tag.
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