[clang] [llvm] [HLSL][DXIL] Implement `refract` intrinsic (PR #147342)

[Farzon Lotfi via llvm-commits]

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@@ -0,0 +1,29 @@
+// RUN: %clang_cc1 -O1 -triple spirv-pc-vulkan-compute %s -emit-llvm -o - | FileCheck %s
+
+typedef float float2 __attribute__((ext_vector_type(2)));
+typedef float float3 __attribute__((ext_vector_type(3)));
+typedef float float4 __attribute__((ext_vector_type(4)));
+
+// CHECK-LABEL: define spir_func <2 x float> @test_refract_float2(
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farzonl wrote:

@spall should we add f16 tests to this file?

https://github.com/llvm/llvm-project/pull/147342