141d390dcb
The parser will accept a wide variety of illegal attempts at forming an ATOMIC construct, leaving it to the semantic analysis to diagnose any issues. This consolidates the analysis into one place and allows us to produce more informative diagnostics. The parser's outcome will be parser::OpenMPAtomicConstruct object holding the directive, parser::Body, and an optional end-directive. The prior variety of OmpAtomicXyz classes, as well as OmpAtomicClause have been removed. READ, WRITE, etc. are now proper clauses. The semantic analysis consistently operates on "evaluation" representations, mainly evaluate::Expr (as SomeExpr) and evaluate::Assignment. The results of the semantic analysis are stored in a mutable member of the OpenMPAtomicConstruct node. This follows a precedent of having `typedExpr` member in parser::Expr, for example. This allows the lowering code to avoid duplicated handling of AST nodes. Using a BLOCK construct containing multiple statements for an ATOMIC construct that requires multiple statements is now allowed. In fact, any nesting of such BLOCK constructs is allowed. This implementation will parse, and perform semantic checks for both conditional-update and conditional-update-capture, although no MLIR will be generated for those. Instead, a TODO error will be issues prior to lowering. The allowed forms of the ATOMIC construct were based on the OpenMP 6.0 spec.
140 lines
4.2 KiB
Fortran
140 lines
4.2 KiB
Fortran
! REQUIRES: openmp_runtime
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! RUN: %python %S/../test_errors.py %s %flang_fc1 %openmp_flags
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! OpenMP Atomic construct
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! section 2.17.7
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! Intrinsic procedure name is one of MAX, MIN, IAND, IOR, or IEOR.
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program OmpAtomic
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use omp_lib
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real x
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integer :: y, z, a, b, c, d
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x = 5.73
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y = 3
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z = 1
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!$omp atomic
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y = IAND(y, 4)
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!$omp atomic
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y = IOR(y, 5)
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!$omp atomic
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y = IEOR(y, 6)
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!$omp atomic
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y = MAX(y, 7)
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!$omp atomic
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y = MIN(y, 8)
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!$omp atomic
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level AND operator
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z = IAND(y, 4)
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!$omp atomic
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level OR operator
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z = IOR(y, 5)
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!$omp atomic
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level NEQV/EOR operator
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z = IEOR(y, 6)
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!$omp atomic
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level MAX operator
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z = MAX(y, 7, b, c)
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!$omp atomic
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level MIN operator
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z = MIN(y, 8, a, d)
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!$omp atomic
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!ERROR: This intrinsic function is not a valid ATOMIC UPDATE operation
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y = FRACTION(x)
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!$omp atomic
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!ERROR: The atomic variable y should appear as an argument in the update operation
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y = REAL(x)
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!$omp atomic update
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y = IAND(y, 4)
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!$omp atomic update
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y = IOR(y, 5)
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!$omp atomic update
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y = IEOR(y, 6)
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!$omp atomic update
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y = MAX(y, 7)
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!$omp atomic update
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y = MIN(y, 8)
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!$omp atomic update
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level AND operator
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z = IAND(y, 4)
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!$omp atomic update
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level OR operator
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z = IOR(y, 5)
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!$omp atomic update
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level NEQV/EOR operator
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z = IEOR(y, 6)
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!$omp atomic update
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level MAX operator
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z = MAX(y, 7)
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!$omp atomic update
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level MIN operator
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z = MIN(y, 8)
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!$omp atomic update
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!ERROR: This intrinsic function is not a valid ATOMIC UPDATE operation
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y = MOD(y, 9)
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!$omp atomic update
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!ERROR: This intrinsic function is not a valid ATOMIC UPDATE operation
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x = ABS(x)
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end program OmpAtomic
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subroutine conflicting_types()
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type simple
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integer :: z
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end type
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real x
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integer :: y, z
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type(simple) ::s
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z = 1
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!$omp atomic
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!ERROR: The atomic variable z should occur exactly once among the arguments of the top-level AND operator
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z = IAND(s%z, 4)
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end subroutine
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subroutine more_invalid_atomic_update_stmts()
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integer :: a, b
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integer :: k(10)
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type some_type
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integer :: m(10)
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end type
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type(some_type) :: s
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!$omp atomic update
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!ERROR: The atomic variable a should occur exactly once among the arguments of the top-level MIN operator
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a = min(a, a, b)
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!$omp atomic
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!ERROR: The atomic variable a should occur exactly once among the arguments of the top-level MAX operator
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a = max(b, a, b, a)
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!$omp atomic
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a = min(b, a, b)
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!$omp atomic
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!ERROR: The atomic variable a should occur exactly once among the arguments of the top-level MAX operator
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a = max(b, a, b, a, b)
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!$omp atomic update
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!ERROR: The atomic variable y should occur exactly once among the arguments of the top-level MIN operator
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y = min(z, x)
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!$omp atomic
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z = max(z, y)
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!$omp atomic update
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!ERROR: Atomic variable k should be a scalar
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!ERROR: The atomic variable k should occur exactly once among the arguments of the top-level MAX operator
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k = max(x, y)
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!$omp atomic
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!ERROR: No intrinsic or user-defined ASSIGNMENT(=) matches scalar REAL(4) and rank 1 array of REAL(4)
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x = min(x, k)
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!$omp atomic
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!ERROR: No intrinsic or user-defined ASSIGNMENT(=) matches scalar REAL(4) and rank 1 array of REAL(4)
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z = z + s%m
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end subroutine
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