single_misc_messages.c
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// RUN: %clang_cc1 -fsyntax-only -fopenmp -verify %s -Wuninitialized
// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -verify %s -Wuninitialized
void xxx(int argc) {
int x; // expected-note {{initialize the variable 'x' to silence this warning}}
#pragma omp single
argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
}
void foo();
// expected-error@+1 {{unexpected OpenMP directive '#pragma omp single'}}
#pragma omp single
// expected-error@+1 {{unexpected OpenMP directive '#pragma omp single'}}
#pragma omp single foo
void test_no_clause() {
int i;
#pragma omp single
foo();
#pragma omp single
++i;
}
void test_branch_protected_scope() {
int i = 0;
L1:
++i;
int x[24];
#pragma omp parallel
#pragma omp single
{
if (i == 5)
goto L1; // expected-error {{use of undeclared label 'L1'}}
else if (i == 6)
return; // expected-error {{cannot return from OpenMP region}}
else if (i == 7)
goto L2;
else if (i == 8) {
L2:
x[i]++;
}
}
if (x[0] == 0)
goto L2; // expected-error {{use of undeclared label 'L2'}}
else if (x[1] == 1)
goto L1;
}
void test_invalid_clause() {
int i;
#pragma omp parallel
// expected-warning@+1 {{extra tokens at the end of '#pragma omp single' are ignored}}
#pragma omp single foo bar
foo();
}
void test_non_identifiers() {
int i, x;
#pragma omp parallel
// expected-warning@+1 {{extra tokens at the end of '#pragma omp single' are ignored}}
#pragma omp single;
foo();
#pragma omp parallel
// expected-error@+2 {{unexpected OpenMP clause 'linear' in directive '#pragma omp single'}}
// expected-warning@+1 {{extra tokens at the end of '#pragma omp single' are ignored}}
#pragma omp single linear(x);
foo();
#pragma omp parallel
// expected-warning@+1 {{extra tokens at the end of '#pragma omp single' are ignored}}
#pragma omp single private(x);
foo();
#pragma omp parallel
// expected-warning@+1 {{extra tokens at the end of '#pragma omp single' are ignored}}
#pragma omp single, private(x);
foo();
}
void test_private() {
int i;
#pragma omp parallel
// expected-error@+2 {{expected expression}}
// expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
#pragma omp single private(
foo();
#pragma omp parallel
// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
// expected-error@+1 2 {{expected expression}}
#pragma omp single private(,
foo();
#pragma omp parallel
// expected-error@+1 2 {{expected expression}}
#pragma omp single private(, )
foo();
#pragma omp parallel
// expected-error@+1 {{expected expression}}
#pragma omp single private()
foo();
#pragma omp parallel
// expected-error@+1 {{expected expression}}
#pragma omp single private(int)
foo();
#pragma omp parallel
// expected-error@+1 {{expected variable name}}
#pragma omp single private(0)
foo();
int x, y, z;
#pragma omp parallel
#pragma omp single private(x)
foo();
#pragma omp parallel
#pragma omp single private(x, y)
foo();
#pragma omp parallel
#pragma omp single private(x, y, z)
foo();
}
void test_firstprivate() {
int i;
#pragma omp parallel
// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
// expected-error@+1 {{expected expression}}
#pragma omp single firstprivate(
foo();
#pragma omp parallel
// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
// expected-error@+1 2 {{expected expression}}
#pragma omp single firstprivate(,
foo();
#pragma omp parallel
// expected-error@+1 2 {{expected expression}}
#pragma omp single firstprivate(, )
foo();
#pragma omp parallel
// expected-error@+1 {{expected expression}}
#pragma omp single firstprivate()
foo();
#pragma omp parallel
// expected-error@+1 {{expected expression}}
#pragma omp single firstprivate(int)
foo();
#pragma omp parallel
// expected-error@+1 {{expected variable name}}
#pragma omp single firstprivate(0)
foo();
}
void test_nowait() {
#pragma omp single nowait nowait // expected-error {{directive '#pragma omp single' cannot contain more than one 'nowait' clause}}
for (int i = 0; i < 16; ++i)
;
}