| Issue |
95274
|
| Summary |
[X86] [Crash] LLVM ERROR: Do not know how to split the result of this operator!
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
ienkovich
|
FP vector conversion test fails for skylake-avx512 CPU. Works fine for sapphirerapids CPU.
```
$ llc bugpoint-reduced-simplified.ll -mcpu=skylake-avx512
SplitVectorResult #0: t12: v1024i16 = X86ISD::CVTPS2PH undef:v1024f32, TargetConstant:i32<4>
LLVM ERROR: Do not know how to split the result of this operator!
```
Simplified reproducer:
```
; ModuleID = 'bugpoint-reduced-simplified.bc'
source_filename = "LLVMDialectModule"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Function Attrs: memory(argmem: readwrite)
define void @kernel(ptr %0) local_unnamed_addr #0 {
%2 = fptrunc <1024 x float> poison to <1024 x half>
store <1024 x half> %2, ptr %0, align 2
ret void
}
attributes #0 = { memory(argmem: readwrite) }
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"Debug Info Version", i32 3}
```
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