800d949bb3
Implement the complete initial version of the Offload API, to the extent that is usable for simple offloading programs. Tested with a basic SYCL program. As far as possible, these are simple wrappers over existing functionality in the plugins. * Allocating and freeing memory (host, device, shared). * Creating a program * Creating a queue (wrapper over asynchronous stream resource) * Enqueuing memcpy operations * Enqueuing kernel executions * Waiting on (optional) output events from the enqueue operations * Waiting on a queue to finish Objects created with the API have reference counting semantics to handle their lifetime. They are created with an initial reference count of 1, which can be incremented and decremented with retain and release functions. They are freed when their reference count reaches 0. Platform and device objects are not reference counted, as they are expected to persist as long as the library is in use, and it's not meaningful for users to create or destroy them. Tests have been added to `offload.unittests`, including device code for testing program and kernel related functionality. The API should still be considered unstable and it's very likely we will need to change the existing entry points.
37 lines
1.3 KiB
TableGen
37 lines
1.3 KiB
TableGen
// RUN: %offload-tblgen -gen-print-header -I %S/../../../liboffload/API %s | %fcheck-generic
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// Check that ranged function parameters are implemented correctly. These
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// are pointers to an array of an arbitrary size. Their size is described as a
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// range between two values. This is typically between 0 and a parameter such
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// as NumItems. The range information helps the printing code print the entire
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// range of the output rather than just the pointer or the first element.
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include "APIDefs.td"
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def : Handle {
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let name = "some_handle_t";
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let desc = "An example handle type";
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}
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def : Function {
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let name = "FunctionA";
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let desc = "Function A description";
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let details = [ "Function A detailed information" ];
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let params = [
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Param<"size_t", "OutCount", "the number of things to write out", PARAM_IN>,
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RangedParam<"some_handle_t*", "OutPtr", "pointer to the output things.", PARAM_OUT,
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Range<"0", "OutCount">>
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];
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let returns = [];
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}
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// CHECK: inline llvm::raw_ostream &operator<<(llvm::raw_ostream &os, const struct function_a_params_t *params) {
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// CHECK: os << ".OutPtr = ";
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// CHECK: for (size_t i = 0; i < *params->pOutCount; i++) {
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// CHECK: if (i > 0) {
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// CHECK: os << ", ";
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// CHECK: }
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// CHECK: printPtr(os, (*params->pOutPtr)[i]);
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// CHECK: }
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// CHECK: os << "}";
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