[llvm] [Offload] Add olKernelMaxGroupSize (PR #142950)

[Joseph Huber via llvm-commits]

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@@ -24,6 +24,19 @@ def : Function {
     let returns = [];
 }
 
+def : Function {
+    let name = "olKernelMaxGroupSize";
+    let desc = "Get the maximum block size needed to achieve maximum occupancy.";
+    let details = [];
+    let params = [
+        Param<"ol_kernel_handle_t", "Kernel", "handle of the kernel", PARAM_IN>,
+        Param<"ol_device_handle_t", "Device", "device intended to run the kernel", PARAM_IN>,
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jhuber6 wrote:

Well, a kernel implies that it's been successfully loaded onto the device, so it should have a device. Might be reasonable to add it as an argument to the main one. That or we could revisit the other question and add some metadata associated with the kernel.

https://github.com/llvm/llvm-project/pull/142950