[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:

Right, but if we add more stuff we don't want to break the ABI in the future. However, this should probably be merged with some big 'getKernelInfo' type thing if we don't already have it. No reason for a standalone function here.

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