ff9cdbdb1a
Adds SEMA tests to verify correct SVE/SME builtin usage based on the calling function's type (i.e. normal, streaming or streaming compatible). For invalid uses the tests verify the expected diagnostic is emitted. This exposed an issue whereby some builtins are incorrectly callable by streaming compatible functions, which this PR fixes. The tests are autogenerated based on the builtin definitions (e.g. arm_sve.td). This is achieved by extending SVEEmitter, which can now emit a JSON file containing builtin usage information that can be fed to aarch64_builtins_test_generator.py that is also part of this PR. Everything currently in `clang/test/Sema/AArch64` is the result of: ``` clang/utils/aarch64_builtins_test_generator.py --gen-streaming-guard-tests <LLVM_BUILD_DIR>/tools/clang/include/clang/Basic/arm_sve_builtins.json --out-dir clang/test/Sema/AArch64/ clang/utils/aarch64_builtins_test_generator.py --gen-streaming-guard-tests <LLVM_BUILD_DIR>/tools/clang/include/clang/Basic/arm_sme_builtins.json --out-dir clang/test/Sema/AArch64/ ```
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.
Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.
If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers:
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Information on Clang: http://clang.llvm.org/
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Building and using Clang: http://clang.llvm.org/get_started.html
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Clang Static Analyzer: http://clang-analyzer.llvm.org/
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Information on the LLVM project: http://llvm.org/
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If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
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If you find a bug in Clang, please file it in the LLVM bug tracker: