[libc-commits] [libc] [libc] Rework the RPC interface to accept runtime wave sizes (PR #80914)

[Joseph Huber via libc-commits]

================
@@ -351,15 +361,24 @@ struct Client {
   LIBC_INLINE Client(uint32_t port_count, void *buffer)
       : process(port_count, buffer) {}
 
-  using Port = rpc::Port<false, Packet<gpu::LANE_SIZE>>;
+#if defined(LIBC_TARGET_ARCH_IS_AMDGPU)
+  // The AMDGPU wavefront size is only known at runtime. We indicate this to the
+  // process using a value of UINT32_MAX.
----------------
jhuber6 wrote:

Compile time has a slightly different meaning in terms of C++, it more or less means it's not `constexpr`. However, it's definitely not correct to say it's a runtime value.

https://github.com/llvm/llvm-project/pull/80914