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/* { dg-do compile { target { c || c++11 } } } */
/* Check that a nested FOR loop with standard c/c++ attributes on it
(not the C++ attribute syntax for OpenMP directives)
gives an error. */
extern void do_something (void);
/* This one should be OK, an empty attribute list is ignored in both C
and C++. */
void imperfect1 (int x, int y)
{
#pragma omp for collapse (2)
for (int i = 0; i < x; i++)
{
[[]] for (int j = 0; j < y; j++)
do_something ();
}
}
void perfect1 (int x, int y)
{
#pragma omp for ordered (2)
for (int i = 0; i < x; i++)
{
[[]] for (int j = 0; j < y; j++)
do_something ();
}
}
/* Similar, but put the attributes on a block wrapping the nested loop
instead. This is not allowed by the grammar. */
void imperfect2 (int x, int y)
{
#pragma omp for collapse (2)
for (int i = 0; i < x; i++) /* { dg-error "not enough nested loops" } */
{
[[]]
{
for (int j = 0; j < y; j++) /* { dg-error "loop not permitted in intervening code" } */
do_something ();
}
}
}
void perfect2 (int x, int y)
{
#pragma omp for ordered (2)
for (int i = 0; i < x; i++) /* { dg-error "not enough nested loops" } */
/* { dg-error "inner loops must be perfectly nested" "" { target *-*-*} .-1 } */
{
[[]]
{
for (int j = 0; j < y; j++) /* { dg-error "loop not permitted in intervening code" } */
do_something ();
}
}
}
/* Make sure attributes are accepted in the innermost loop body, which has
no intervening code restrictions. */
void imperfect3 (int x, int y)
{
#pragma omp for collapse (2)
for (int i = 0; i < x; i++)
for (int j = 0; j < y; j++)
{
[[]] do_something ();
}
}
void perfect3 (int x, int y)
{
#pragma omp for ordered (2)
for (int i = 0; i < x; i++)
for (int j = 0; j < y; j++)
{
[[]] do_something ();
}
}
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