[llvm] [HLSL] Add descriptor table metadata parsing (PR #142492)

[via llvm-commits]

================
@@ -99,6 +99,17 @@ DESCRIPTOR_RANGE_FLAG(0x10000, DESCRIPTORS_STATIC_KEEPING_BUFFER_BOUNDS_CHECKS)
 #undef DESCRIPTOR_RANGE_FLAG
 #endif // DESCRIPTOR_RANGE_FLAG
 
+// DESCRIPTOR_RANGE(value, name).
+#ifdef DESCRIPTOR_RANGE
+
+DESCRIPTOR_RANGE(0, SRV)
+DESCRIPTOR_RANGE(1, UAV)
+DESCRIPTOR_RANGE(2, CBV)
+DESCRIPTOR_RANGE(3, Sampler)
+DESCRIPTOR_RANGE(4, NONE)
----------------
joaosaffran wrote:

This came as a request from another PR, where Finn mentioned those values are usefull in the frontend, since we are planning on sharing this, I've added those back.

https://github.com/llvm/llvm-project/pull/142492