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

[Chris B 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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llvm-beanz wrote:

Yes, these are not valid, but also we really shouldn't be testing overload resolution in the intrinsic tests because that just makes the fragile to other changes. The important part of these tests was to verify that the functions codegen to correct code, verifying overload resolution in each of these tests is just excess duplication of test coverage.

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