| Issue |
114893
|
| Summary |
[RISCV] Cannot select nxv2bf16 = RISCVISD::VFSLIDE1UP_VL
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
topperc
|
This test case crashes with -mattr=+zfbfmin,+zvfbfmin,+zvl64b
```
define <2 x bfloat> @vslide1up_2xbfloat(<2 x bfloat> %v, bfloat %b) {
%vb = insertelement <2 x bfloat> poison, bfloat %b, i64 0
%v1 = shufflevector <2 x bfloat> %v, <2 x bfloat> %vb, <2 x i32> <i32 2, i32 0
ret <2 x bfloat> %v1
}
```
We need to disable `lowerVECTOR_SHUFFLEAsVSlide1` for bf16. We probably also need to disable it for f16 without Zfh.
CC: @lukel97 @preames
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