================
@@ -0,0 +1,16 @@
+; RUN: not opt -S -scalarizer -dxil-op-lower
-mtriple=dxil-pc-shadermodel6.3-library %s 2>&1 | FileCheck %s
+
+; DXIL operation splitdouble doesn't support vector types.
+; CHECK: in function test_vector_double_split
+; CHECK-SAME: splitdouble doesn't support lowering vector types.
+
+define noundef <3 x i32> @test_vector_double_split(<3 x double> noundef %D)
local_unnamed_addr {
+entry:
+ %hlsl.splitdouble = tail call { <3 x i32>, <3 x i32> }
@llvm.dx.splitdouble.v3i32(<3 x double> %D)
----------------
farzonl wrote:
remove tail:
```suggestion
%hlsl.splitdouble = call { <3 x i32>, <3 x i32> }
@llvm.dx.splitdouble.v3i32(<3 x double> %D)
```
https://github.com/llvm/llvm-project/pull/109331
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