[Mlir-commits] [mlir] [MLIR][NVVM][Docs] Explain memory spaces (PR #168059)

[Durgadoss R]

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@@ -79,6 +79,40 @@ def NVVM_Dialect : Dialect {
     sequence must be expressed directly, NVVM provides an `nvvm.inline_ptx` op to
     embed PTX inline as a last-resort escape hatch, with explicit operands and
     results.
+
+
+    **Memory Spaces:** The NVVM dialect introduces the following memory spaces,
+    each with distinct scopes and lifetimes:
+```
+    | Memory Space      | Address Space | Scope                | Lifetime          |
+    |-------------------|---------------|----------------------|-------------------|
+    | `generic`         | 0             | All threads          | Context-dependent |
+    | `global`          | 1             | All threads (device) | Application       |
+    | `shared`          | 3             | Thread block (CTA)   | Kernel execution  |
+    | `constant`        | 4             | All threads (RO)     | Application       |
+    | `local`           | 5             | Single thread        | Kernel execution  |
+    | `tensor`          | 6             | Thread block (CTA)   | Kernel execution  |
+    | `shared_cluster`  | 7             | Thread block cluster | Kernel execution  |
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durga4github wrote:

Nice!

https://github.com/llvm/llvm-project/pull/168059