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I have added a new file: llvm/test/CodeGen/AArch64/README that describes what to do in the event one of the SVE codegen tests fails the warnings check. In addition, I've added comments to all the relevant SVE tests pointing users at the README file. Differential Revision: https://reviews.llvm.org/D83467
12 lines
602 B
Plaintext
12 lines
602 B
Plaintext
++ SVE CodeGen Warnings ++
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When the WARN check lines fail in the SVE codegen tests it most likely means you
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have introduced a warning due to:
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1. Adding an invalid call to VectorType::getNumElements() or EVT::getVectorNumElements()
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when the type is a scalable vector.
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2. Relying upon an implicit cast conversion from TypeSize to uint64_t.
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For generic code, please modify your code to work with ElementCount and TypeSize directly.
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For target-specific code that only deals with fixed-width vectors, use the fixed-size interfaces.
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Please refer to the code where those functions live for more details.
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