c2d659b9b8
Previously, loop constructs were parsed in a piece-wise manner: the begin directive, the body, and the end directive were parsed separately. Later on in canonicalization they were all coalesced into a loop construct. To facilitate that end-loop directives were given a special treatment, namely they were parsed as OpenMP constructs. As a result syntax errors caused by misplaced end-loop directives were handled differently from those cause by misplaced non-loop end directives. The new loop nest parser constructs the complete loop construct, removing the need for the canonicalization step. Additionally, it is the basis for parsing loop-sequence-associated constructs in the future. It also removes the need for the special treatment of end-loop directives. While this patch temporarily degrades the error messaging for misplaced end-loop directives, it enables uniform handling of any misplaced end-directives in the future.
105 lines
2.4 KiB
Fortran
105 lines
2.4 KiB
Fortran
! Testing the Semantics of nested Loop Transformation Constructs
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!RUN: %python %S/../test_errors.py %s %flang -fopenmp -fopenmp-version=51
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subroutine loop_transformation_construct1
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implicit none
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!ERROR: OpenMP loop construct cannot apply to a fully unrolled loop
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!$omp do
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!ERROR: OpenMP loop construct should contain a DO-loop or a loop-nest-generating OpenMP construct
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!$omp unroll
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end subroutine
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subroutine loop_transformation_construct2
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implicit none
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integer, parameter :: i = 5
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integer :: x
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integer :: v(i)
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!$omp do
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!ERROR: At least one of SIZES clause must appear on the TILE directive
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!$omp tile
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do x = 1, i
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v(x) = v(x) * 2
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end do
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!$omp end tile
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!$omp end do
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end subroutine
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subroutine loop_transformation_construct3
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implicit none
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integer, parameter :: i = 5
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integer :: x
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integer :: v(i)
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!$omp do
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!ERROR: Only loop-transforming OpenMP constructs are allowed inside OpenMP loop constructs
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!$omp parallel do
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do x = 1, i
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v(x) = v(x) * 2
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end do
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end subroutine
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subroutine loop_transformation_construct4
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implicit none
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integer, parameter :: i = 5
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integer :: x
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integer :: v(i)
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!$omp do
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do x = 1, i
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v(x) = v(x) * 2
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end do
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!ERROR: OpenMP loop construct should contain a DO-loop or a loop-nest-generating OpenMP construct
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!ERROR: At least one of SIZES clause must appear on the TILE directive
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!$omp tile
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end subroutine
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subroutine loop_transformation_construct5
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implicit none
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integer, parameter :: i = 5
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integer :: x
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integer :: v(i)
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!$omp do
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!ERROR: OpenMP loop construct cannot apply to a fully unrolled loop
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!ERROR: At least one of SIZES clause must appear on the TILE directive
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!$omp tile
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!$omp unroll full
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do x = 1, i
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v(x) = v(x) * 2
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end do
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end subroutine
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subroutine loop_transformation_construct6
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implicit none
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integer, parameter :: i = 5
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integer :: x
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integer :: v(i)
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!$omp do
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!ERROR: OpenMP loop construct cannot apply to a fully unrolled loop
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!ERROR: At least one of SIZES clause must appear on the TILE directive
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!$omp tile
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!$omp unroll
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do x = 1, i
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v(x) = v(x) * 2
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end do
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end subroutine
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subroutine loop_transformation_construct7
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implicit none
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integer, parameter :: i = 5
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integer :: x
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integer :: v(i)
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!$omp do
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!ERROR: At least one of SIZES clause must appear on the TILE directive
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!$omp tile
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!$omp unroll partial(2)
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do x = 1, i
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v(x) = v(x) * 2
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end do
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end subroutine
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