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

[via llvm-commits]

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+// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.2-library %s -fnative-half-type -verify
+
+
+int16_t4 test_asint_too_many_arg(uint16_t p0, uint16_t p1)
+{
+    return asint16(p0, p1);
+  // expected-error at -1 {{no matching function for call to 'asint16'}}
+  // 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_asint_int(int p1)
+{
+    return asint16(p1);
+    // expected-error at hlsl/hlsl_intrinsics.h:* {{no matching function for call to 'bit_cast'}}
+    // expected-note at -2 {{in instantiation of function template specialization 'hlsl::asint16<int>'}}
+    // expected-note at hlsl/hlsl_detail.h:* {{candidate template ignored: could not match 'vector<int, N>' against 'int'}}
+    // expected-note at hlsl/hlsl_detail.h:* {{candidate template ignored: substitution failure [with U = int16_t, T = int]: no type named 'Type'}}
+}
+
+int16_t test_asint_float(float p1)
+{
+    return asint16(p1);
+    // expected-error at hlsl/hlsl_intrinsics.h:* {{no matching function for call to 'bit_cast'}}
+    // expected-note at -2 {{in instantiation of function template specialization 'hlsl::asint16<float>'}}
+    // expected-note at hlsl/hlsl_detail.h:* {{candidate template ignored: could not match 'vector<float, N>' against 'float'}}
+    // expected-note at hlsl/hlsl_detail.h:* {{candidate template ignored: substitution failure [with U = int16_t, T = float]: no type named 'Type'}}
+}
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metkarpoonam wrote:

As you mentioned, I have included the 32-bit int and float vector test cases.

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