b487f9a7bd
Add support for `!$omp unroll` in Flang and basic MLIR `omp.canonical_loop` modeling. First step to add `omp.canonical_loop` modeling to the MLIR OpenMP dialect with the goal of being more general than the current `omp.loop_nest` approach: * Support for non-perfectly nested loops * Support for non-rectangular loops * Support for arbitrary compositions of loop transformations This patch is functional end-to-end and adds support for `!$omp unroll` to Flang. `!$omp unroll` is lowered to `omp.new_cli`, `omp.canonical_loop`, and `omp.unroll_heuristic` in MLIR, which are lowered to LLVM-IR using the OpenMPIRBuilder (https://reviews.llvm.org/D107764).
21 lines
555 B
Fortran
21 lines
555 B
Fortran
! Test to ensure TODO message is emitted for unroll OpenMP 5.1 Directives when they are nested.
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!RUN: not %flang_fc1 -emit-hlfir -fopenmp -fopenmp-version=51 -o - %s 2>&1 | FileCheck %s
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program loop_transformation_construct
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implicit none
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integer, parameter :: I = 10
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integer :: x
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integer :: y(I)
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!$omp do
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!$omp unroll
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do x = 1, I
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y(x) = y(x) * 5
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end do
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!$omp end unroll
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!$omp end do
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end program loop_transformation_construct
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!CHECK: not yet implemented: Applying a loop-associated on the loop generated by the unroll construct
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