Some compilers allow the `$acc routine(<name>)` to be placed at the
program unit level. To be compatible, this patch enables the use of acc
routine at this level. These acc routine directives must have a name.
Relax the parser to accept scalar integer expression in addition to
scalar logical expression. The parser now accepts scalar expression and
the semantic checks its type.
Some compilers accept `!$acc data` without any clauses. For portability
reason, this patch relaxes the strict error to a simple portability warning.
Reviewed By: razvanlupusoru, vzakhari
Differential Revision: https://reviews.llvm.org/D159019
This reverts commit 02fa9fc018db5b757a4ce129d85d64efefc8645c.
Commit message and content does not match. Revert to commit with
a proper commit message.
Some compilers accept `!$acc end loop` associated with an `!$acc loop`
directive. This patch updates the acc loop parser to accept it as well.
The parser is also updated to be stricter on the following statement
to match the OpenACC combined construct parser.
The rewrite canonicalization is not a rewrite anymore and the naming
will be updated in a follow up patch for the Loop and Combined constructs.
Reviewed By: razvanlupusoru
Differential Revision: https://reviews.llvm.org/D159015
Some compiler treat `acc routine` without a parallelism clause as
if seq is present. Relax the parser rule to allow acc routine
without clause. The default clause will be handled in lowering.
Reviewed By: razvanlupusoru
Differential Revision: https://reviews.llvm.org/D153896
Make the keyword `loop` optional for the end driective on combined
construct. This done to extend compatibility with other compiler that
allow this.
Reviewed By: razvanlupusoru
Differential Revision: https://reviews.llvm.org/D151856
