llvm-project

61af05fe - [flang] Add runtime and lowering implementation for extended intrinsic PUTENV (#134412)

[flang] Add runtime and lowering implementation for extended intrinsic PUTENV (#134412) Implement extended intrinsic PUTENV, both function and subroutine forms. Add PUTENV documentation to flang/docs/Intrinsics.md. Add functional and semantic unit tests.