[clang] [llvm] [HLSL][SPIRV][DXIL] Implement `WaveActiveSum` intrinsic (PR #118580)

[Steven Perron via llvm-commits]

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@@ -0,0 +1,41 @@
+; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv32v1.3-vulkan-unknown %s -o - | FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32v1.3-vulkan-unknown %s -o - -filetype=obj | spirv-val %}
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s-perron wrote:

```suggestion
; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-vulkan-unknown %s -o - | FileCheck %s
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-unknown %s -o - -filetype=obj | spirv-val %}
```

If you use `spirv32`, then you are targeting the `kernel` (openCL) version of SPIR-V and not the graphics (SPIR-V) version. You need to target `spirv`.

Also, we don't seem to be able to specify the spirv version in the triple option yet. I think I'll get a fix for that.

https://github.com/llvm/llvm-project/pull/118580