[clang] [llvm] [HLSL] Implement the `reflect` HLSL function (PR #122992)

[Deric Cheung via llvm-commits]

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@@ -0,0 +1,22 @@
+; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o /dev/null 2>&1 | FileCheck %s
+; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s -o /dev/null 2>&1 | FileCheck %s
+; RUN: not %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s -o /dev/null 2>&1 -filetype=obj %}
+; RUN: not %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown %s -o /dev/null 2>&1 -filetype=obj %}
+
+; CHECK: LLVM ERROR: Intrinsic selection not supported for this instruction set: %{{.*}} = G_INTRINSIC intrinsic(@llvm.spv.reflect), %{{.*}}, %{{.*}}
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Icohedron wrote:

I have changed the error message to read `LLVM ERROR: %{{.*}} = G_INTRINSIC intrinsic(@llvm.spv.reflect), %{{.*}}, %{{.*}} is only supported with the GLSL extended instruction set.`

https://github.com/llvm/llvm-project/pull/122992