[flang-commits] [flang] [flang][OpenMP] Parse ORDERED as standalone when DEPEND/DOACROSS is p… (PR #156693)

[Tom Eccles via flang-commits]

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@@ -52,27 +52,14 @@ program main
   end do
   !$omp end do
 
-  !$omp do ordered(1)
-  do i = 2, N
-    !ERROR: DEPEND clauses are not allowed when ORDERED construct is a block construct with an ORDERED region
-    !$omp ordered depend(source)
-    arrayA(i) = foo(i)
-    !$omp end ordered
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tblah wrote:

I guess we could continue the pattern of parsing approximately and then generating better errors in semantics. Here we could allow stray OmpEndDirective as an OpenMPConstruct (lowest priority). I spent some time messing with it but while I could detect the error condition in parsing, I didn't find a sufficiently non-hacky way to print the error message because the parser doesn't distinguish between "this didn't parse" and "there is an error here".

https://github.com/llvm/llvm-project/pull/156693