Fortran: Handle compare in OpenMP atomic

gcc/fortran/ChangeLog:

	PR fortran/103576
	* openmp.c (is_scalar_intrinsic_expr): Fix condition.
	(resolve_omp_atomic): Fix/update checks, accept compare.
	* trans-openmp.c (gfc_trans_omp_atomic): Handle compare.

libgomp/ChangeLog:

	* libgomp.texi (OpenMP 5.1): Set Fortran support for atomic to 'Y'.
	* testsuite/libgomp.fortran/atomic-19.f90: New test.

gcc/testsuite/ChangeLog:

	* gfortran.dg/gomp/atomic-25.f90: Remove sorry, fix + add checks.
	* gfortran.dg/gomp/atomic-26.f90: Likewise.
	* gfortran.dg/gomp/atomic-21.f90: New test.
This commit is contained in:
Tobias Burnus 2021-12-13 12:37:40 +01:00
parent 55823c5a0b
commit 494ebfa7c9
7 changed files with 650 additions and 95 deletions

View File

@ -7552,10 +7552,10 @@ is_scalar_intrinsic_expr (gfc_expr *expr, bool must_be_var, bool conv_ok)
return false;
return (expr->rank == 0
&& !gfc_is_coindexed (expr)
&& (expr->ts.type != BT_INTEGER
|| expr->ts.type != BT_REAL
|| expr->ts.type != BT_COMPLEX
|| expr->ts.type != BT_LOGICAL));
&& (expr->ts.type == BT_INTEGER
|| expr->ts.type == BT_REAL
|| expr->ts.type == BT_COMPLEX
|| expr->ts.type == BT_LOGICAL));
}
static void
@ -7574,12 +7574,9 @@ resolve_omp_atomic (gfc_code *code)
code = code->block->next;
/* resolve_blocks asserts this is initially EXEC_ASSIGN or EXEC_IF
If it changed to EXEC_NOP, assume an error has been emitted already. */
if (code->op == EXEC_NOP /* FIXME: || (code->next && code->next->op == EXEC_NOP)*/)
if (code->op == EXEC_NOP)
return;
if (code->op == EXEC_IF && code->block->op == EXEC_IF)
comp_cond = code->block->expr1;
if (atomic_code->ext.omp_clauses->compare
&& atomic_code->ext.omp_clauses->capture)
{
@ -7597,6 +7594,7 @@ resolve_omp_atomic (gfc_code *code)
&& next->block->op == EXEC_IF
&& next->block->next->op == EXEC_ASSIGN)
{
comp_cond = next->block->expr1;
stmt = next->block->next;
if (stmt->next)
{
@ -7604,11 +7602,20 @@ resolve_omp_atomic (gfc_code *code)
goto unexpected;
}
}
else if (capture_stmt)
{
gfc_error ("Expected IF at %L in atomic compare capture",
&next->loc);
return;
}
if (stmt && !capture_stmt && next->block->block)
{
if (next->block->block->expr1)
gfc_error ("Expected ELSE at %L in atomic compare capture",
&next->block->block->expr1->where);
{
gfc_error ("Expected ELSE at %L in atomic compare capture",
&next->block->block->expr1->where);
return;
}
if (!code->block->block->next
|| code->block->block->next->op != EXEC_ASSIGN)
{
@ -7623,10 +7630,8 @@ resolve_omp_atomic (gfc_code *code)
goto unexpected;
}
}
if (stmt && !capture_stmt && code->op == EXEC_ASSIGN)
{
capture_stmt = code;
}
if (stmt && !capture_stmt && next->next->op == EXEC_ASSIGN)
capture_stmt = next->next;
else if (!capture_stmt)
{
loc = &code->loc;
@ -7641,6 +7646,7 @@ resolve_omp_atomic (gfc_code *code)
&& code->block->op == EXEC_IF
&& code->block->next->op == EXEC_ASSIGN)
{
comp_cond = code->block->expr1;
stmt = code->block->next;
if (stmt->next || code->block->block)
{
@ -7703,8 +7709,7 @@ resolve_omp_atomic (gfc_code *code)
{
/* x = ... */
stmt = code;
if ((!atomic_code->ext.omp_clauses->compare && stmt->op != EXEC_ASSIGN)
|| (atomic_code->ext.omp_clauses->compare && stmt->op != EXEC_IF))
if (!atomic_code->ext.omp_clauses->compare && stmt->op != EXEC_ASSIGN)
goto unexpected;
gcc_assert (!code->next);
}
@ -7720,7 +7725,7 @@ resolve_omp_atomic (gfc_code *code)
"expression at %L", &comp_cond->where);
return;
}
if (!is_scalar_intrinsic_expr (comp_cond->value.op.op1, true, false))
if (!is_scalar_intrinsic_expr (comp_cond->value.op.op1, true, true))
{
gfc_error ("Expected scalar intrinsic variable at %L in atomic "
"comparison", &comp_cond->value.op.op1->where);
@ -7781,14 +7786,6 @@ resolve_omp_atomic (gfc_code *code)
break;
}
if (atomic_code->ext.omp_clauses->compare
&& !atomic_code->ext.omp_clauses->capture)
{
gfc_error ("Sorry, COMPARE clause in ATOMIC at %L is not yet "
"supported", &atomic_code->loc);
return;
}
if (atomic_code->ext.omp_clauses->capture)
{
if (!is_scalar_intrinsic_expr (capture_stmt->expr1, true, false))
@ -7818,8 +7815,31 @@ resolve_omp_atomic (gfc_code *code)
}
}
if (atomic_code->ext.omp_clauses->capture
&& !expr_references_sym (stmt_expr2, var, NULL))
if (atomic_code->ext.omp_clauses->compare)
{
gfc_expr *var_expr;
if (comp_cond->value.op.op1->expr_type == EXPR_VARIABLE)
var_expr = comp_cond->value.op.op1;
else
var_expr = comp_cond->value.op.op1->value.function.actual->expr;
if (var_expr->symtree->n.sym != var)
{
gfc_error ("For !$OMP ATOMIC COMPARE, the first operand in comparison"
" at %L must be the variable %qs that the update statement"
" writes into at %L", &var_expr->where, var->name,
&stmt->expr1->where);
return;
}
if (stmt_expr2->rank != 0 || expr_references_sym (stmt_expr2, var, NULL))
{
gfc_error ("expr in !$OMP ATOMIC COMPARE assignment var = expr "
"must be scalar and cannot reference var at %L",
&stmt_expr2->where);
return;
}
}
else if (atomic_code->ext.omp_clauses->capture
&& !expr_references_sym (stmt_expr2, var, NULL))
atomic_code->ext.omp_clauses->atomic_op
= (gfc_omp_atomic_op) (atomic_code->ext.omp_clauses->atomic_op
| GFC_OMP_ATOMIC_SWAP);
@ -7829,8 +7849,7 @@ resolve_omp_atomic (gfc_code *code)
gfc_intrinsic_op op = stmt_expr2->value.op.op;
gfc_intrinsic_op alt_op = INTRINSIC_NONE;
if (atomic_code->ext.omp_clauses->fail != OMP_MEMORDER_UNSET
&& !atomic_code->ext.omp_clauses->compare)
if (atomic_code->ext.omp_clauses->fail != OMP_MEMORDER_UNSET)
gfc_error ("!$OMP ATOMIC UPDATE at %L with FAIL clause requiries either"
" the COMPARE clause or using the intrinsic MIN/MAX "
"procedure", &atomic_code->loc);
@ -8042,10 +8061,6 @@ resolve_omp_atomic (gfc_code *code)
else
gfc_error ("!$OMP ATOMIC assignment must have an operator or "
"intrinsic on right hand side at %L", &stmt_expr2->where);
if (atomic_code->ext.omp_clauses->compare)
gfc_error ("Sorry, COMPARE clause in ATOMIC at %L is not yet "
"supported", &atomic_code->loc);
return;
unexpected:

View File

@ -4488,13 +4488,13 @@ gfc_trans_omp_atomic (gfc_code *code)
gfc_se lse;
gfc_se rse;
gfc_se vse;
gfc_expr *expr2, *e;
gfc_expr *expr1, *expr2, *e, *capture_expr1 = NULL, *capture_expr2 = NULL;
gfc_symbol *var;
stmtblock_t block;
tree lhsaddr, type, rhs, x;
tree lhsaddr, type, rhs, x, compare = NULL_TREE, comp_tgt = NULL_TREE;
enum tree_code op = ERROR_MARK;
enum tree_code aop = OMP_ATOMIC;
bool var_on_left = false;
bool var_on_left = false, else_branch = false;
enum omp_memory_order mo, fail_mo;
switch (atomic_code->ext.omp_clauses->memorder)
{
@ -4514,18 +4514,86 @@ gfc_trans_omp_atomic (gfc_code *code)
case OMP_MEMORDER_SEQ_CST: fail_mo = OMP_FAIL_MEMORY_ORDER_SEQ_CST; break;
default: gcc_unreachable ();
}
mo = (omp_memory_order) (mo | fail_mo);
mo = (omp_memory_order) (mo | fail_mo);
code = code->block->next;
gcc_assert (code->op == EXEC_ASSIGN);
var = code->expr1->symtree->n.sym;
if (atomic_code->ext.omp_clauses->compare)
{
gfc_expr *comp_expr;
if (code->op == EXEC_IF)
{
comp_expr = code->block->expr1;
gcc_assert (code->block->next->op == EXEC_ASSIGN);
expr1 = code->block->next->expr1;
expr2 = code->block->next->expr2;
if (code->block->block)
{
gcc_assert (atomic_code->ext.omp_clauses->capture
&& code->block->block->next->op == EXEC_ASSIGN);
else_branch = true;
aop = OMP_ATOMIC_CAPTURE_OLD;
capture_expr1 = code->block->block->next->expr1;
capture_expr2 = code->block->block->next->expr2;
}
else if (atomic_code->ext.omp_clauses->capture)
{
gcc_assert (code->next->op == EXEC_ASSIGN);
aop = OMP_ATOMIC_CAPTURE_NEW;
capture_expr1 = code->next->expr1;
capture_expr2 = code->next->expr2;
}
}
else
{
gcc_assert (atomic_code->ext.omp_clauses->capture
&& code->op == EXEC_ASSIGN
&& code->next->op == EXEC_IF);
aop = OMP_ATOMIC_CAPTURE_OLD;
capture_expr1 = code->expr1;
capture_expr2 = code->expr2;
expr1 = code->next->block->next->expr1;
expr2 = code->next->block->next->expr2;
comp_expr = code->next->block->expr1;
}
gfc_init_se (&lse, NULL);
gfc_conv_expr (&lse, comp_expr->value.op.op2);
gfc_add_block_to_block (&block, &lse.pre);
compare = lse.expr;
var = expr1->symtree->n.sym;
}
else
{
gcc_assert (code->op == EXEC_ASSIGN);
expr1 = code->expr1;
expr2 = code->expr2;
if (atomic_code->ext.omp_clauses->capture
&& (expr2->expr_type == EXPR_VARIABLE
|| (expr2->expr_type == EXPR_FUNCTION
&& expr2->value.function.isym
&& expr2->value.function.isym->id == GFC_ISYM_CONVERSION
&& (expr2->value.function.actual->expr->expr_type
== EXPR_VARIABLE))))
{
capture_expr1 = expr1;
capture_expr2 = expr2;
expr1 = code->next->expr1;
expr2 = code->next->expr2;
aop = OMP_ATOMIC_CAPTURE_OLD;
}
else if (atomic_code->ext.omp_clauses->capture)
{
aop = OMP_ATOMIC_CAPTURE_NEW;
capture_expr1 = code->next->expr1;
capture_expr2 = code->next->expr2;
}
var = expr1->symtree->n.sym;
}
gfc_init_se (&lse, NULL);
gfc_init_se (&rse, NULL);
gfc_init_se (&vse, NULL);
gfc_start_block (&block);
expr2 = code->expr2;
if (((atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_MASK)
!= GFC_OMP_ATOMIC_WRITE)
&& expr2->expr_type == EXPR_FUNCTION
@ -4536,7 +4604,7 @@ gfc_trans_omp_atomic (gfc_code *code)
if ((atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_MASK)
== GFC_OMP_ATOMIC_READ)
{
gfc_conv_expr (&vse, code->expr1);
gfc_conv_expr (&vse, expr1);
gfc_add_block_to_block (&block, &vse.pre);
gfc_conv_expr (&lse, expr2);
@ -4554,36 +4622,32 @@ gfc_trans_omp_atomic (gfc_code *code)
return gfc_finish_block (&block);
}
if (atomic_code->ext.omp_clauses->capture)
{
aop = OMP_ATOMIC_CAPTURE_NEW;
if (expr2->expr_type == EXPR_VARIABLE)
{
aop = OMP_ATOMIC_CAPTURE_OLD;
gfc_conv_expr (&vse, code->expr1);
gfc_add_block_to_block (&block, &vse.pre);
gfc_conv_expr (&lse, expr2);
gfc_add_block_to_block (&block, &lse.pre);
gfc_init_se (&lse, NULL);
code = code->next;
var = code->expr1->symtree->n.sym;
expr2 = code->expr2;
if (expr2->expr_type == EXPR_FUNCTION
&& expr2->value.function.isym
&& expr2->value.function.isym->id == GFC_ISYM_CONVERSION)
expr2 = expr2->value.function.actual->expr;
}
if (capture_expr2
&& capture_expr2->expr_type == EXPR_FUNCTION
&& capture_expr2->value.function.isym
&& capture_expr2->value.function.isym->id == GFC_ISYM_CONVERSION)
capture_expr2 = capture_expr2->value.function.actual->expr;
gcc_assert (!capture_expr2 || capture_expr2->expr_type == EXPR_VARIABLE);
if (aop == OMP_ATOMIC_CAPTURE_OLD)
{
gfc_conv_expr (&vse, capture_expr1);
gfc_add_block_to_block (&block, &vse.pre);
gfc_conv_expr (&lse, capture_expr2);
gfc_add_block_to_block (&block, &lse.pre);
gfc_init_se (&lse, NULL);
}
gfc_conv_expr (&lse, code->expr1);
gfc_conv_expr (&lse, expr1);
gfc_add_block_to_block (&block, &lse.pre);
type = TREE_TYPE (lse.expr);
lhsaddr = gfc_build_addr_expr (NULL, lse.expr);
if (((atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_MASK)
== GFC_OMP_ATOMIC_WRITE)
|| (atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_SWAP))
|| (atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_SWAP)
|| compare)
{
gfc_conv_expr (&rse, expr2);
gfc_add_block_to_block (&block, &rse.pre);
@ -4675,6 +4739,10 @@ gfc_trans_omp_atomic (gfc_code *code)
gcc_unreachable ();
}
e = expr2->value.function.actual->expr;
if (e->expr_type == EXPR_FUNCTION
&& e->value.function.isym
&& e->value.function.isym->id == GFC_ISYM_CONVERSION)
e = e->value.function.actual->expr;
gcc_assert (e->expr_type == EXPR_VARIABLE
&& e->symtree != NULL
&& e->symtree->n.sym == var);
@ -4717,11 +4785,27 @@ gfc_trans_omp_atomic (gfc_code *code)
NULL_TREE, NULL_TREE);
}
rhs = gfc_evaluate_now (rse.expr, &block);
if (compare)
{
tree var = create_tmp_var_raw (TREE_TYPE (lhsaddr));
DECL_CONTEXT (var) = current_function_decl;
lhsaddr = build4 (TARGET_EXPR, TREE_TYPE (lhsaddr), var, lhsaddr, NULL,
NULL);
lse.expr = build_fold_indirect_ref_loc (input_location, lhsaddr);
compare = convert (TREE_TYPE (lse.expr), compare);
compare = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
lse.expr, compare);
}
if (expr2->expr_type == EXPR_VARIABLE || compare)
rhs = rse.expr;
else
rhs = gfc_evaluate_now (rse.expr, &block);
if (((atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_MASK)
== GFC_OMP_ATOMIC_WRITE)
|| (atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_SWAP))
|| (atomic_code->ext.omp_clauses->atomic_op & GFC_OMP_ATOMIC_SWAP)
|| compare)
x = rhs;
else
{
@ -4741,6 +4825,30 @@ gfc_trans_omp_atomic (gfc_code *code)
gfc_add_block_to_block (&block, &lse.pre);
gfc_add_block_to_block (&block, &rse.pre);
if (aop == OMP_ATOMIC_CAPTURE_NEW)
{
gfc_conv_expr (&vse, capture_expr1);
gfc_add_block_to_block (&block, &vse.pre);
gfc_add_block_to_block (&block, &lse.pre);
}
if (compare && else_branch)
{
tree var2 = create_tmp_var_raw (boolean_type_node);
DECL_CONTEXT (var2) = current_function_decl;
comp_tgt = build4 (TARGET_EXPR, boolean_type_node, var2,
boolean_false_node, NULL, NULL);
compare = fold_build2_loc (input_location, MODIFY_EXPR, TREE_TYPE (var2),
var2, compare);
TREE_OPERAND (compare, 0) = comp_tgt;
compare = omit_one_operand_loc (input_location, boolean_type_node,
compare, comp_tgt);
}
if (compare)
x = build3_loc (input_location, COND_EXPR, type, compare,
convert (type, x), lse.expr);
if (aop == OMP_ATOMIC)
{
x = build2_v (OMP_ATOMIC, lhsaddr, convert (type, x));
@ -4750,28 +4858,31 @@ gfc_trans_omp_atomic (gfc_code *code)
}
else
{
if (aop == OMP_ATOMIC_CAPTURE_NEW)
{
code = code->next;
expr2 = code->expr2;
if (expr2->expr_type == EXPR_FUNCTION
&& expr2->value.function.isym
&& expr2->value.function.isym->id == GFC_ISYM_CONVERSION)
expr2 = expr2->value.function.actual->expr;
gcc_assert (expr2->expr_type == EXPR_VARIABLE);
gfc_conv_expr (&vse, code->expr1);
gfc_add_block_to_block (&block, &vse.pre);
gfc_init_se (&lse, NULL);
gfc_conv_expr (&lse, expr2);
gfc_add_block_to_block (&block, &lse.pre);
}
x = build2 (aop, type, lhsaddr, convert (type, x));
OMP_ATOMIC_MEMORY_ORDER (x) = mo;
OMP_ATOMIC_WEAK (x) = atomic_code->ext.omp_clauses->weak;
x = convert (TREE_TYPE (vse.expr), x);
gfc_add_modify (&block, vse.expr, x);
if (compare && else_branch)
{
tree vtmp = create_tmp_var_raw (TREE_TYPE (x));
DECL_CONTEXT (vtmp) = current_function_decl;
x = fold_build2_loc (input_location, MODIFY_EXPR,
TREE_TYPE (vtmp), vtmp, x);
vtmp = build4 (TARGET_EXPR, TREE_TYPE (vtmp), vtmp,
build_zero_cst (TREE_TYPE (vtmp)), NULL, NULL);
TREE_OPERAND (x, 0) = vtmp;
tree x2 = convert (TREE_TYPE (vse.expr), vtmp);
x2 = fold_build2_loc (input_location, MODIFY_EXPR,
TREE_TYPE (vse.expr), vse.expr, x2);
x2 = build3_loc (input_location, COND_EXPR, void_type_node, comp_tgt,
void_node, x2);
x = omit_one_operand_loc (input_location, TREE_TYPE (x2), x2, x);
gfc_add_expr_to_block (&block, x);
}
else
{
x = convert (TREE_TYPE (vse.expr), x);
gfc_add_modify (&block, vse.expr, x);
}
}
return gfc_finish_block (&block);

View File

@ -0,0 +1,93 @@
! { dg-do compile }
! { dg-additional-options "-fdump-tree-original" }
module mod
implicit none
integer i, j, k, l, m, n
contains
subroutine foo ()
!$omp atomic release
i = i + 1
end
end module
module m2
use mod
implicit none
!$omp requires atomic_default_mem_order (acq_rel)
contains
subroutine bar ()
integer v
!$omp atomic
j = j + 1
!$omp atomic update
k = k + 1
!$omp atomic read
v = l
!$omp atomic write
m = v
!$omp atomic capture
n = n + 1; v = n
end
! { dg-final { scan-tree-dump-times "#pragma omp atomic release" 5 "original" } }
! { dg-final { scan-tree-dump-times "v = #pragma omp atomic capture acq_rel" 1 "original" } }
! { dg-final { scan-tree-dump-times "v = #pragma omp atomic read acquire" 1 "original" } }
subroutine foobar()
integer :: aa, bb, cc, dd, ee, ff, gg, hh, ii, jj, kk, nn, oo, pp, qq
!$omp atomic compare
if (ii == jj) ii = kk
! #pragma omp atomic release
! TARGET_EXPR <D.4241, &ii> = *TARGET_EXPR <D.4241, &ii> == jj \\? kk : *TARGET_EXPR <D.4241, &ii>;
!
! { dg-final { scan-tree-dump-times "TARGET_EXPR <D.\[0-9\]+, &ii> = \\*TARGET_EXPR <D.\[0-9\]+, &ii> == jj \\? kk : \\*TARGET_EXPR <D.\[0-9\]+, &ii>;" 1 "original" } }
!$omp atomic compare, capture
if (nn == oo) then
nn = pp
else
qq = nn
endif
! TARGET_EXPR <D.4244, 0> = #pragma omp atomic capture acq_rel
! TARGET_EXPR <D.4242, &nn> = NON_LVALUE_EXPR <TARGET_EXPR <D.4243, 0> = *TARGET_EXPR <D.4242, &nn> == oo> ? pp : *TARGET_EXPR <D.4242, &nn>;, if (TARGET_EXPR <D.4243, 0>)
! {
! <<< Unknown tree: void_cst >>>
! }
! else
! {
! qq = TARGET_EXPR <D.4244, 0>;
! };
!
! { dg-final { scan-tree-dump-times "TARGET_EXPR <D.\[0-9\]+, 0> = #pragma omp atomic capture acq_rel" 1 "original" } }
! { dg-final { scan-tree-dump-times "TARGET_EXPR <D.\[0-9\]+, &nn> = NON_LVALUE_EXPR <TARGET_EXPR <D.\[0-9\]+, 0> = \\*TARGET_EXPR <D.\[0-9\]+, &nn> == oo> \\? pp : \\*TARGET_EXPR <D.\[0-9\]+, &nn>;, if \\(TARGET_EXPR <D.\[0-9\]+, 0>\\)" 1 "original" } }
! { dg-final { scan-tree-dump-times "<<< Unknown tree: void_cst >>>" 1 "original" } }
! { dg-final { scan-tree-dump-times "qq = TARGET_EXPR <D.\[0-9\]+, 0>;" 1 "original" } }
!$omp atomic capture compare
aa = bb
if (bb == cc) bb = dd
! aa = #pragma omp atomic capture acq_rel
! TARGET_EXPR <D.4245, &bb> = *TARGET_EXPR <D.4245, &bb> == cc ? dd : *TARGET_EXPR <D.4245, &bb>;
!
! { dg-final { scan-tree-dump-times "aa = #pragma omp atomic capture acq_rel" 1 "original" } }
! { dg-final { scan-tree-dump-times "TARGET_EXPR <D.\[0-9\]+, &bb> = \\*TARGET_EXPR <D.\[0-9\]+, &bb> == cc \\? dd : \\*TARGET_EXPR <D.\[0-9\]+, &bb>;" 1 "original" } }
!$omp atomic capture compare
if (ee == ff) ee = gg
hh = ee
! hh = #pragma omp atomic capture acq_rel
! TARGET_EXPR <D.4246, &ee> = *TARGET_EXPR <D.4246, &ee> == ff ? gg : *TARGET_EXPR <D.4246, &ee>;
!
! { dg-final { scan-tree-dump-times "hh = #pragma omp atomic capture acq_rel" 1 "original" } }
! { dg-final { scan-tree-dump-times "TARGET_EXPR <D.\[0-9\]+, &ee> = \\*TARGET_EXPR <D.\[0-9\]+, &ee> == ff \\? gg : \\*TARGET_EXPR <D.\[0-9\]+, &ee>;" 1 "original" } }
end
end module

View File

@ -19,31 +19,31 @@ subroutine foo (y, e, f)
d = max (e, d)
!$omp atomic fail(SEQ_CST)
d = min (d, f)
!$omp atomic seq_cst compare fail(relaxed) ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic seq_cst compare fail(relaxed)
if (x == 7) x = 24
!$omp atomic compare ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic compare
if (x == 7) x = 24
!$omp atomic compare ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic compare
if (x == 123) x = 256
!$omp atomic compare ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
if (ld == f) ld = f + 5.0_mrk
!$omp atomic compare ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic compare
if (ld == f) ld = 5.0_mrk
!$omp atomic compare
if (x == 9) then
x = 5
endif
!$omp atomic compare update capture seq_cst fail(acquire) ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic compare update capture seq_cst fail(acquire)
if (x == 42) then
x = f
else
v = x
endif
!$omp atomic capture compare weak ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic capture compare weak
if (x == 42) then
x = f
else
v = x
endif
!$omp atomic capture compare fail(seq_cst) ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" }
!$omp atomic capture compare fail(seq_cst)
if (d == 8.0) then
d = 16.0
else

View File

@ -59,7 +59,7 @@ real function bar (y, e, f)
!$omp atomic compare fail ! { dg-error "Expected '\\\(' after 'fail'" }
if (x == y) x = d
!$omp atomic compare fail( ! { dg-error "Expected SEQ_CST, ACQUIRE or RELAXED" }
if (x == y) x = d ! { dg-error "Sorry, COMPARE clause in ATOMIC at .1. is not yet supported" "" { target *-*-* } .-1 }
if (x == y) x = d
!$omp atomic compare fail() ! { dg-error "Expected SEQ_CST, ACQUIRE or RELAXED" }
if (x == y) x = d
!$omp atomic compare fail(foobar) ! { dg-error "Expected SEQ_CST, ACQUIRE or RELAXED" }
@ -72,4 +72,28 @@ real function bar (y, e, f)
if (x == y) x = d
bar = v
end
subroutine foobar
implicit none
integer :: i, j, k
!$omp atomic compare write ! { dg-error "COMPARE clause is incompatible with READ or WRITE" }
if (i == 1) i = 5
!$omp atomic compare
if (k == 5) i = 7 ! { dg-error "For !.OMP ATOMIC COMPARE, the first operand in comparison at .1. must be the variable 'i' that the update statement writes into at .2." }
!$omp atomic compare
if (j == i) i = 8 ! { dg-error "For !.OMP ATOMIC COMPARE, the first operand in comparison at .1. must be the variable 'i' that the update statement writes into at .2." }
!$omp atomic compare
if (i == 5) i = 8
!$omp atomic compare
if (5 == i) i = 8 ! { dg-error "Expected scalar intrinsic variable at .1. in atomic comparison" }
!$omp atomic compare
if (i == 5) i = i + 8 ! { dg-error "20: expr in !.OMP ATOMIC COMPARE assignment var = expr must be scalar and cannot reference var" }
end subroutine
end module

View File

@ -301,8 +301,7 @@ The OpenMP 4.5 specification is fully supported.
@item @code{interop} directive @tab N @tab
@item @code{omp_interop_t} object support in runtime routines @tab N @tab
@item @code{nowait} clause in @code{taskwait} directive @tab N @tab
@item Extensions to the @code{atomic} directive @tab P
@tab @code{compare} unsupported in Fortran
@item Extensions to the @code{atomic} directive @tab Y @tab
@item @code{seq_cst} clause on a @code{flush} construct @tab Y @tab
@item @code{inoutset} argument to the @code{depend} clause @tab N @tab
@item @code{private} and @code{firstprivate} argument to @code{default}

View File

@ -0,0 +1,313 @@
! { dg-do run }
module m
integer :: x = 6
integer :: w, y
target :: y
contains
function foo ()
integer, pointer :: foo
if (w /= 0) &
error stop
foo => y
end
end module
program main
use m
implicit none
integer :: v, r
!$omp atomic
x = min (8, x)
!$omp atomic read
v = x
if (v /= 6) &
error stop
!$omp atomic compare
if (x == 6) x = 7
!$omp atomic read
v = x
if (v /= 7) &
error stop
!$omp atomic
x = min (x, 4)
!$omp atomic read
v = x
if (v /= 4) &
error stop
!$omp atomic capture
x = max(x, 8)
v = x
if (v /= 8) &
error stop
!$omp atomic read
v = x
if (x /= 8) &
error stop
!$omp atomic capture
v = x
x = max (12, x)
if (v /= 8) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic capture
v = x
x = max(4, x)
if (v /= 12) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic capture compare
if (x == 4) then
x = 4
else
v = x
endif
if (v /= 12) &
error stop
!$omp atomic write
x = -32
!$omp atomic capture seq_cst fail(relaxed)
x = max(x, 12_8)
v = x
if (v /= 12) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic compare
if (x == 12) x = 16
!$omp atomic read
v = x
if (v /= 16) &
error stop
r = 57
!$omp atomic compare capture
if (x == 16) then
x = r + 7
else
v = x
endif
if (v /= 16) &
error stop
!$omp atomic read
v = x
if (v /= 64) &
error stop
!$omp atomic compare capture
v = x
if (x == 64) x = 16
if (v /= 64) &
error stop
!$omp atomic read
v = x
if (v /= 16) &
error stop
!$omp atomic capture, update, compare seq_cst fail(acquire)
v = x
if (x == 73_8 - r) x = 12_2
if (v /= 16) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic update, compare, capture
if (x == 69_2 - r) x = 6_8
v = x
if (v /= 6) &
error stop
!$omp atomic read
v = x
if (v /= 6) &
error stop
!$omp atomic
x = min(x, 8)
!$omp atomic read
v = x
if (v /= 6) &
error stop
!$omp atomic compare
if (x == 6) x = 8
!$omp atomic read
v = x
if (v /= 8) &
error stop
!$omp atomic
x = min(4,x)
!$omp atomic read
v = x
if (v /= 4) &
error stop
!$omp atomic capture
x = max(8_2, x)
v = x
if (v /= 8) &
error stop
!$omp atomic read
v = x
if (v /= 8) &
error stop
!$omp atomic capture
v = x
x = max(12_1, x)
if (v /= 8) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic capture
v = x
x = max(x, 4_1)
if (v /= 12) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic write
x = -32
!$omp atomic capture ,seq_cst fail ( relaxed )
x = max(10_1 + 2_8, x)
v = x
!$omp end atomic
if (v /= 12) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic compare
if (x == 12) x = 16
!$omp atomic read
v = x
if (v /= 16) &
error stop
r = 57
!$omp atomic compare capture
if (x == 15) x = r + 7; v = x
if (v /= 16) &
error stop
!$omp atomic read
v = x
if (v /= 16) &
error stop
!$omp atomic capture, update, compare seq_cst fail(acquire)
v = x; if (x == 73_8 - r) x = 12_8
!$omp end atomic
if (v /= 16) &
error stop
!$omp atomic read
v = x
if (v /= 12) &
error stop
!$omp atomic update, compare, capture
if (x == 69_2 - r) x = 6_1; v = x
if (v /= 6) &
error stop
!$omp atomic read
v = x
if (v /= 6) &
error stop
v = 24
!$omp atomic compare capture
if (x == 12) then; x = 16; else; v = x; endif
if (v /= 6) &
error stop
v = 32
!$omp atomic read
v = x
if (v /= 6) &
error stop
v = 147
!$omp atomic capture compare
if (x == 6) then; x = 57; else; v = x; endif
if (v /= 147) &
error stop
!$omp atomic read
v = x
if (v /= 57) &
error stop
!$omp atomic update, compare, weak, seq_cst, fail (relaxed)
if (x == 137) x = 174
!$omp atomic read
v = x
if (v /= 57) &
error stop
!$omp atomic compare fail (relaxed)
if (x == 57_2) x = 6_8
!$omp atomic read
v = x
if (v /= 6) &
error stop
v = -5
!$omp atomic capture compare
if (x == 17) then; x = 25; else; v = x; endif
if (v /= 6) &
error stop
!$omp atomic read
v = x
if (v /= 6) &
error stop
v = 15
!$omp atomic capture compare
if (x == 6) then; x = 23; else; v = x; endif
if (v /= 15) &
error stop
!$omp atomic read
v = x
if (v /= 23) &
error stop
w = 1
!$omp atomic compare capture
! if (x == 23) then; x = 57; else; foo () = x; endif ! OpenMP 6
if (x == 23) then; x = 57; else; y = x; endif
!$omp atomic read
v = x
if (v /= 57) &
error stop
!$omp atomic capture update compare
! if (x == 57) then; x = 23; else; foo () = x; endif ! OpenMP 6
if (x == 57) then; x = 23; else; y = x; endif
!$omp atomic read
v = x
if (v /= 23) &
error stop
w = 0
!$omp atomic compare capture
! if (x == 24) then; x = 57; else; foo () = x; endif ! OpenMP 6
if (x == 24) then; x = 57; else; y = x; endif
if (y /= 23) &
error stop
!$omp atomic read
v = x
if (v /= 23) &
error stop
y = -5
!$omp atomic capture update compare
if (x == 57) then
x = 27
else
! foo () = x ! OpenMP 6
y = x
end if
!$omp end atomic
if (y /= 23) &
error stop
!$omp atomic read
v = x
if (v /= 23) &
error stop
end