| Issue |
75557
|
| Summary |
another OOB InsertElement -> OOB store
|
| Labels |
llvm:codegen,
miscompilation
|
| Assignees |
|
| Reporter |
regehr
|
this is like https://github.com/llvm/llvm-project/issues/74248 and again affects all backends that I tried
```llvm
define void @insertelt_v8i64_store(ptr %0, i32 %1) {
%3 = load <8 x i64>, ptr %0, align 64
%4 = insertelement <8 x i64> %3, i64 -1, i32 %1
store <8 x i64> %4, ptr %0, align 64
ret void
}
```
becomes:
```
insertelt_v8i64_store:
mov x8, #-1 // =0xffffffffffffffff
str x8, [x0, w1, uxtw #3]
ret
```
cc @nunoplopes @tanmaytirpankar
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