llvm-project

f22d5884 - [mlir] Dialect Conversion: Fix expensive pattern check in no-rollback mode (#166576)

[mlir] Dialect Conversion: Fix expensive pattern check in no-rollback mode (#166576) Fixes a bug causing every conversion to fail fatally with "expected pattern to replace the root operation or modify it in place" when `MLIR_ENABLE_EXPENSIVE_PATTERN_API_CHECKS` is enabled and pattern rollback is disabled. When `allowPatternRollback` is disabled, the rewriter does not keep track of the rewrites it performs and can therefore not use that list to check whether the root op was replaced or updated in place.