[clang] [llvm] [HLSL] Implement ddx/ddy_coarse intrinsics (PR #164831)

[Farzon Lotfi via llvm-commits]

================
@@ -0,0 +1,43 @@
+; 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 %}
----------------
farzonl wrote:

I think we have been specifying a vulkan version for spirv-val. ussuallt `spirv-val --target-env spv1.4` or `spirv-val --target-env spv1.3`.

https://github.com/llvm/llvm-project/pull/164831