| Issue |
136803
|
| Summary |
[RISCV] error: duplicated standard user-level extension 'zifencei' since LLVM 19
|
| Labels |
backend:RISC-V
|
| Assignees |
|
| Reporter |
wangpc-pp
|
See: https://godbolt.org/z/cnan5zh41
Before LLVM 19, we can compile successfully with `-march=rv64gc_zifencei`. But since LLVM 19, it complains:
```
error: invalid arch name 'rv64gc_zifencei', duplicated standard user-level extension 'zifencei'
```
The behavior is not compatible.
Is there something I missed? I know there are issues with `zifencei` implication, did we decide to not accept standalone `zifencei`? But I don't see it in release notes...
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