[clang] [HLSL] Allow truncation to scalar (PR #104844)

[Damyan Pepper via cfe-commits]

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@@ -143,19 +143,3 @@ float test_dot_float3(float3 p0, float3 p1) { return dot(p0, p1); }
 // CHECK: %dx.dot = call float @llvm.dx.dot4.v4f32(<4 x float> %0, <4 x float> %1)
 // CHECK: ret float %dx.dot
 float test_dot_float4(float4 p0, float4 p1) { return dot(p0, p1); }
-
-// CHECK:  %dx.dot = call float @llvm.dx.dot2.v2f32(<2 x float> %splat.splat, <2 x float> %1)
-// CHECK: ret float %dx.dot
-float test_dot_float2_splat(float p0, float2 p1) { return dot(p0, p1); }
-
-// CHECK:  %dx.dot = call float @llvm.dx.dot3.v3f32(<3 x float> %splat.splat, <3 x float> %1)
-// CHECK: ret float %dx.dot
-float test_dot_float3_splat(float p0, float3 p1) { return dot(p0, p1); }
-
-// CHECK:  %dx.dot = call float @llvm.dx.dot4.v4f32(<4 x float> %splat.splat, <4 x float> %1)
-// CHECK: ret float %dx.dot
-float test_dot_float4_splat(float p0, float4 p1) { return dot(p0, p1); }
-
-// CHECK: %dx.dot = fmul double %0, %1
-// CHECK: ret double %dx.dot
-double test_dot_double(double p0, double p1) { return dot(p0, p1); }
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damyanp wrote:

Are these no longer valid cases?  So the `float p0, float2 p1` for example generates an error now, rather than implicitly truncating `p1` to a float?

https://github.com/llvm/llvm-project/pull/104844