| Issue |
143744
|
| Summary |
[clang] vsetvli/vsetivli does not permit lmul operand to be optional
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
ThinkOpenly
|
The following instructions should all produce the same encoding:
```
[vsetvli.s.txt](https://github.com/user-attachments/files/20694598/vsetvli.s.txt)
[vsetvli.s.txt](https://github.com/user-attachments/files/20694603/vsetvli.s.txt)
vsetvli t0, a0, 192
vsetvli t0, a0, e8, m1, ta, ma
vsetvli t0, a0, e8, ta, ma
```
However, clang (20) does not accept the 3rd syntax that omits the lmul operand "m1", which is the default value:
```
$ clang -c vsetvli.s
vsetvli.s:21:25: error: operand must be e[8|16|32|64],m[1|2|4|8|f2|f4|f8],[ta|tu],[ma|mu]
vsetvli t0, a0, e8, ta, ma
^
```
Originally reported https://github.com/riscv-software-src/riscv-unified-db/pull/838.
![]()
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
