d452e67ee7
This patch enables tiling in flang. In MLIR tiling is handled by changing the the omp.loop_nest op to be able to represent both collapse and tiling, so the flang front-end will combine the nested constructs into a single MLIR op. The MLIR->LLVM-IR lowering of the LoopNestOp is enhanced to first do the tiling if present, then collapse.
42 lines
1.3 KiB
Fortran
42 lines
1.3 KiB
Fortran
!RUN: %python %S/../test_errors.py %s %flang -fopenmp
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! OpenMP Version 4.5
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! 2.7.1 Collapse Clause
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program omp_doCollapse
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integer:: i,j
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!ERROR: The value of the parameter in the COLLAPSE or ORDERED clause must not be larger than the number of nested loops following the construct.
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!$omp do collapse(3)
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do i = 1,10
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do j = 1, 10
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print *, "hello"
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end do
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end do
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!$omp end do
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do i = 1,10
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do j = 1, 10
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!ERROR: The value of the parameter in the COLLAPSE or ORDERED clause must not be larger than the number of nested loops following the construct.
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!$omp do collapse(2)
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do k = 1, 10
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print *, "hello"
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end do
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!$omp end do
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end do
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end do
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!$omp parallel do collapse(2)
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do i = 1, 3
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!ERROR: Loop control is not present in the DO LOOP
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!ERROR: The associated loop of a loop-associated directive cannot be a DO without control.
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do
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end do
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end do
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!ERROR: The value of the parameter in the COLLAPSE or ORDERED clause must not be larger than the number of nested loops following the construct.
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!ERROR: At most one COLLAPSE clause can appear on the SIMD directive
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!$omp simd collapse(2) collapse(1)
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do i = 1, 4
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j = j + i + 1
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end do
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!$omp end simd
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end program omp_doCollapse
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