llvm-project

649c44fc - [flang][OpenMP] Improve checks for DO CONCURRENT in loop constructs (#190990)

[flang][OpenMP] Improve checks for DO CONCURRENT in loop constructs (#190990) In OpenMP 6.0+ DO CONCURRENT is allowed as an alternative to a Canonical Loop Nest. In other words, DO CONCURRENT is allowed inside loop constructs as long as it's the only loop. Add checks to detect DO CONCURRENT as the root of the associated loop nest. Remove related checks from resolve-directives.cpp.