[llvm] [SPIR-V] Add support for HLSL SV_GroupIndex (PR #130670)

[Steven Perron via llvm-commits]

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@@ -0,0 +1,32 @@
+; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-vulkan-unknown %s -o - | FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-unknown %s -o - -filetype=obj | spirv-val %}
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s-perron wrote:

Could you add the target env option to the invocation of spir-val? 
```suggestion
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-unknown %s -o - -filetype=obj | spirv-val --target-env vulkan1.3 %}
```

Or something like that?

https://github.com/llvm/llvm-project/pull/130670