fd3907ccb5
Reland #118503. Added a fix for builds with `-DBUILD_SHARED_LIBS=ON` (see last commit). Otherwise the changes are identical. --- ### New API Previous discussions at the LLVM/Offload meeting have brought up the need for a new API for exposing the functionality of the plugins. This change introduces a very small subset of a new API, which is primarily for testing the offload tooling and demonstrating how a new API can fit into the existing code base without being too disruptive. Exact designs for these entry points and future additions can be worked out over time. The new API does however introduce the bare minimum functionality to implement device discovery for Unified Runtime and SYCL. This means that the `urinfo` and `sycl-ls` tools can be used on top of Offload. A (rough) implementation of a Unified Runtime adapter (aka plugin) for Offload is available [here](https://github.com/callumfare/unified-runtime/tree/offload_adapter). Our intention is to maintain this and use it to implement and test Offload API changes with SYCL. ### Demoing the new API ```sh # From the runtime build directory $ ninja LibomptUnitTests $ OFFLOAD_TRACE=1 ./offload/unittests/OffloadAPI/offload.unittests ``` ### Open questions and future work * Only some of the available device info is exposed, and not all the possible device queries needed for SYCL are implemented by the plugins. A sensible next step would be to refactor and extend the existing device info queries in the plugins. The existing info queries are all strings, but the new API introduces the ability to return any arbitrary type. * It may be sensible at some point for the plugins to implement the new API directly, and the higher level code on top of it could be made generic, but this is more of a long-term possibility.
35 lines
1015 B
TableGen
35 lines
1015 B
TableGen
// RUN: %offload-tblgen -gen-print-header -I %S/../../../liboffload/API %s | %fcheck-generic
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// Check that print helpers are created for enums
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include "APIDefs.td"
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def : Enum {
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let name = "my_enum_t";
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let desc = "An example enum";
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let etors =[
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Etor<"VALUE_ONE", "The first enum value">,
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Etor<"VALUE_TWO", "The second enum value">,
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Etor<"VALUE_THREE", "The third enum value">,
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Etor<"VALUE_FOUR", "The fourth enum value">,
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];
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}
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// CHECK: inline std::ostream &operator<<(std::ostream &os, enum my_enum_t value)
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// CHECK: switch (value) {
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// CHECK: case MY_ENUM_VALUE_ONE:
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// CHECK: os << "MY_ENUM_VALUE_ONE";
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// CHECK: break;
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// CHECK: case MY_ENUM_VALUE_TWO:
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// CHECK: os << "MY_ENUM_VALUE_TWO";
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// CHECK: break;
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// CHECK: case MY_ENUM_VALUE_THREE:
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// CHECK: os << "MY_ENUM_VALUE_THREE";
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// CHECK: break;
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// CHECK: case MY_ENUM_VALUE_FOUR:
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// CHECK: os << "MY_ENUM_VALUE_FOUR";
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// CHECK: break;
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// CHECK: default:
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// CHECK: os << "unknown enumerator";
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// CHECK: break;
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