[clang] [llvm] [HLSL][DXIL][SPRIV] Added `GroupMemoryBarrier()` (PR #185383)

[Steven Perron via llvm-commits]

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@@ -0,0 +1,14 @@
+; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-unknown-vulkan %s -o - | FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan %s -o - -filetype=obj | spirv-val --target-env vulkan1.3 %}
+
+; CHECK: OpMemoryModel Logical GLSL450
+
+define void @test_group_memory_barrier() {
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s-perron wrote:

```suggestion
define void @test_group_memory_barrier() #0 {
```

https://github.com/llvm/llvm-project/pull/185383