[polly][ScheduleOptimizer] Use IslMaxOperationsGuard helper instead of explicit restoration #79303
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…f explicit restoration To fix long compile time issue of Schedule optimizer, patch llvm#77280 sets the upper cap on max ISL operations. In case of bailing out when isl quota is hit, error handling behavior was restored manually. This commit replaces the restoration code with IslMaxOperationsGuard helper and also removes redundant early return.
…f explicit restoration To fix long compile time issue of Schedule optimizer, patch llvm#77280 sets the upper cap on max ISL operations. In case of bailing out when isl quota is hit, error handling behavior was restored manually. This commit replaces the restoration code with IslMaxOperationsGuard helper and also removes redundant early return. This way of using helper is less error-prone as well.
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To fix long compile time issue of Schedule optimizer, patch #77280 sets the upper cap on max ISL operations. In case of bailing out when ISL quota is hit, error handling behavior was restored manually. This commit replaces the restoration code with IslMaxOperationsGuard helper and also removes redundant early return.