[llvm] [offload][omp] Move reading _kernel_environment to libomptarget (PR #222606)

[Alex Duran via llvm-commits]

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@@ -461,6 +466,67 @@ static int loadImagesOntoDevice(DeviceTy &Device) {
           if (Device.RTL->get_function(Binary, Entry.SymbolName,
                                        &DeviceEntry.Address) != OFFLOAD_SUCCESS)
             REPORT() << "Failed to load kernel " << Entry.SymbolName;
+
+          // Read this kernel's launch-geometry properties once, from its
+          // "<name>_kernel_environment" device global, and cache them on
+          // the device for use at launch time.
+          std::string EnvName =
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adurang wrote:

Sure, let me rework that.

https://github.com/llvm/llvm-project/pull/222606