| Issue |
136243
|
| Summary |
[DirectX] Legalize memset
|
| Labels |
|
| Assignees |
farzonl
|
| Reporter |
farzonl
|
DML shaders a breaking because memset isn't a supported intrinsic in the backend. We need to legalize memory intrinsics like memset to create valid DXIL.
example LLVMIR we need to legalize
```llvm
call void @llvm.lifetime.start.p0(i64 128, ptr nonnull %accum.i.flat) #3
call void @llvm.memset.p0.i32(ptr nonnull align 4 dereferenceable(128) %accum.i.flat, i8 0, i32 128, i1 false), !tbaa !17
...
_Z6CSMainDv3_jS_.exit: ; preds = %for.cond.cleanup193.i
call void @llvm.lifetime.end.p0(i64 128, ptr nonnull %accum.i.flat) #3
ret void
```
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