e6d90a0d5e
Compute operation finger prints to detect incorrect API usage in RewritePatterns. Does not work for dialect conversion patterns. Detect patterns that: * Returned `failure` but changed the IR. * Returned `success` but did not change the IR. * Inserted/removed/modified ops, bypassing the rewriter. Not all cases are detected. These new checks are quite expensive, so they are only enabled with `-DMLIR_ENABLE_EXPENSIVE_PATTERN_API_CHECKS=ON`. Failures manifest as fatal errors (`llvm::report_fatal_error`) or crashes (accessing deallocated memory). To get better debugging information, run `mlir-opt -debug` (to see which pattern is broken) with ASAN (to see where memory was deallocated). Differential Revision: https://reviews.llvm.org/D144552
The LLVM Compiler Infrastructure
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