LLVM fork for squiid. https://github.com/llvm/llvm-project/

Peter Steinfeld 169b8272e8 [flang] These are additional changes for issue 458, to perform semantic checks on DO ... variable and initial, final, and step expressions. Here's a summary of the changes since my original pull request: - I've taken into account the possibility that the DO variable is declared in a MODULE. This required a call to GetUltimate() on the Symbol for the DO variable. - The previous change exposed problems in the semantic checking for NULLIFY and DEALLOCATE statements, so I've included fixes and tests for those. I also added a test for the ALLOCATE statement, even though it was already handling this case. - I now handle the case where a procedure name is erroneously used as a DO variable. - I now handle the case where a pointer to a procedure is erroneously used as a DO variable. - I now check that the DO expressions are not null. - I added tests for all cases listed above. Original-commit: flang-compiler/f18@219d856fdb Reviewed-on: https://github.com/flang-compiler/f18/pull/478 Tree-same-pre-rewrite: false		2019-06-10 13:31:31 -07:00
flang	[flang] These are additional changes for issue 458, to perform semantic checks on DO	2019-06-10 13:31:31 -07:00