[clang] [llvm] Hlsl asuint16 function (PR #132315)

[Farzon Lotfi via llvm-commits]

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@@ -0,0 +1,52 @@
+// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.2-library %s -fnative-half-type -verify
+
+uint16_t test_asuint16_less_argument()
+{
+    return asuint16();
+  // expected-error at -1 {{no matching function for call to 'asuint16'}}
+  // expected-note at hlsl/hlsl_intrinsics.h:* {{candidate function template not viable: requires single argument 'V', but no arguments were provided}}
+  // expected-note at hlsl/hlsl_intrinsics.h:* {{candidate function template not viable: requires single argument 'F', but no arguments were provided}}
+
+}
+
+int16_t4 test_asuint16_too_many_arg(uint16_t p0, uint16_t p1)
+{
+    return asuint16(p0, p1);
+  // expected-error at -1 {{no matching function for call to 'asuint16'}}
+  // expected-note at hlsl/hlsl_intrinsics.h:* {{candidate function template not viable: requires single argument 'V', but 2 arguments were provided}}
+  // expected-note at hlsl/hlsl_intrinsics.h:* {{candidate function template not viable: requires single argument 'F', but 2 arguments were provided}}
+
+}
+
+int16_t test_asuint16_int(int p1)
+{
+    return asuint16(p1);
+  // expected-error at -1 {{no matching function for call to 'asuint16'}}
+  // expected-note at hlsl/hlsl_intrinsics.h:* {{candidate template ignored: could not match 'vector<T, N>' against 'int'}}
+  // expected-note at hlsl/hlsl_intrinsics.h:* {{candidate template ignored: substitution failure [with T = int]: no type named 'Type'}}
----------------
farzonl wrote:

Since this is a language overload resolution rule and not one we defined in sema there is not much we can do in this PR. Atleast nothing that woudn't be considered scope creep. Worth talk with Chris about though and see if there is something we can change.

https://github.com/llvm/llvm-project/pull/132315