[clang] [llvm] Hlsl asint16 intrinsic (PR #131900)

[Ashley Coleman via llvm-commits]

================
@@ -19,3 +20,12 @@ entry:
   %res = bitcast half %val2 to i16
   ret i16 %res
 }
+
+define <4 x i16> @test_vector_half4(<4 x half> nofpclass(nan inf) %p1) {
+entry:
+  ; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#vec4_float_16]]
+  ; CHECK: %[[#Res1:]] = OpBitcast %[[#vec4_int_16]] %[[#arg0]]
+  %0 = bitcast <4 x half> %p1 to <4 x i16>
+  ;CHECK: OpReturnValue %[[#Res1]]
----------------
V-FEXrt wrote:

nit: 
```suggestion
  ; CHECK: OpReturnValue %[[#Res1]]
```

https://github.com/llvm/llvm-project/pull/131900