llvm-project

305cf623 - [Polly] Check for ISL errors after schedule optimization (#166551)

[Polly] Check for ISL errors after schedule optimization (#166551) When ISL encounters an internal error, it sets the error flag, but it is not isl_error_quota that was already checked. Check for general errors and abort the schedule optimization if that happens, instead of continuing on the good path. The error occured when compiling llvm-test-suite's MultiSource/Applications/JM/lencod/leaky_bucket.c with Polly enabled. Not adding a test case because it depends on ISL internals. We do not want to a test case to depend on which version of ISL is used.