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// RUN: %clang_cc1 %s -fopenacc -verify
template<unsigned Val>
void depth_too_high_templ() {
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(Val)
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
}
constexpr int three() { return 3; }
struct ConvertsThree{
constexpr ConvertsThree(){};
constexpr operator int(){ return 3; }
};
void depth_too_high() {
depth_too_high_templ<3>(); // expected-note{{in instantiation of function template specialization}}
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc serial loop collapse(3)
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc kernels loop collapse(three())
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(ConvertsThree{})
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
}
template<typename T, unsigned Three>
void not_single_loop_templ() {
T Arr[5];
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1 2{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(3)
for(auto x : Arr) {
for(auto y : Arr){
do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'parallel loop' with a 'collapse' clause}}
}
}
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1 2{{active 'collapse' clause defined here}}
#pragma acc serial loop collapse(Three)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'serial loop' with a 'collapse' clause}}
}
}
#pragma acc kernels loop collapse(Three)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
for(unsigned k = 0; k < 5;++k) {
do{}while(true);
}
}
}
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1 2{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(Three)
for(auto x : Arr) {
for(auto y: Arr) {
do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'parallel loop' with a 'collapse' clause}}
}
}
#pragma acc serial loop collapse(Three)
for(auto x : Arr) {
for(auto y: Arr) {
for(auto z: Arr) {
do{}while(true);
}
}
}
}
void not_single_loop() {
not_single_loop_templ<int, 3>(); // expected-note{{in instantiation of function template}}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc kernels loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
for(unsigned k = 0; k < 5;++k);
}
while(true); // expected-error{{while loop cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
for(unsigned k = 0; k < 5;++k);
}
do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'parallel loop' with a 'collapse' clause}}
}
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1 2{{active 'collapse' clause defined here}}
#pragma acc serial loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
while(true); // expected-error{{while loop cannot appear in intervening code of a 'serial loop' with a 'collapse' clause}}
}
}
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1 2{{active 'collapse' clause defined here}}
#pragma acc kernels loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
}
}
#pragma acc parallel loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
do{}while(true);
}
}
#pragma acc serial loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
while(true);
}
}
int Arr[5];
// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1 2{{active 'collapse' clause defined here}}
#pragma acc kernels loop collapse(3)
for(auto x : Arr) {
for(auto y : Arr){
do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
}
}
// expected-note@+1 {{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
for(unsigned k = 0; k < 5;++k);
}
// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'parallel loop' construct with a 'collapse' clause}}
for(unsigned k = 0; k < 5;++k);
}
// expected-note@+1 {{active 'collapse' clause defined here}}
#pragma acc serial loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
for(unsigned k = 0; k < 5;++k);
// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'serial loop' construct with a 'collapse' clause}}
for(unsigned k = 0; k < 5;++k);
}
}
for(unsigned k = 0; k < 5;++k);
#pragma acc kernels loop collapse(3)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
for(unsigned k = 0; k < 5;++k);
}
}
}
template<unsigned Two, unsigned Three>
void no_other_directives() {
#pragma acc parallel loop collapse(Two)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {// last loop associated with the top level.
// expected-error@+1{{'collapse' clause specifies a loop count greater than the number of available loops}}
#pragma acc serial loop collapse(Three) // expected-note 2{{active 'collapse' clause defined here}}
for(unsigned k = 0; k < 6;++k) {
for(unsigned l = 0; l < 5; ++l) {
// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'serial loop' with a 'collapse' clause}}
#pragma acc serial
;
}
}
}
}
#pragma acc kernels loop collapse(Two)// expected-note{{active 'collapse' clause defined here}}
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {// last loop associated with the top level.
#pragma acc parallel loop collapse(Three)
for(unsigned k = 0; k < 6;++k) {
for(unsigned l = 0; l < 5; ++l) {
for(unsigned m = 0; m < 5; ++m);
}
}
}
// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
#pragma acc serial
;
}
}
void no_other_directives() {
no_other_directives<2,3>(); // expected-note{{in instantiation of function template specialization}}
// Ok, not inside the intervening list
#pragma acc serial loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
// expected-error@+1{{OpenACC 'data' construct must have at least one 'attach', 'copy', 'copyin', 'copyout', 'create', 'default', 'deviceptr', 'no_create', or 'present' clause}}
#pragma acc data
;
}
}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc kernels loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
// expected-error@+2{{OpenACC 'data' construct must have at least one 'attach', 'copy', 'copyin', 'copyout', 'create', 'default', 'deviceptr', 'no_create', or 'present' clause}}
// expected-error@+1{{OpenACC 'data' construct cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
#pragma acc data
for(unsigned j = 0; j < 5; ++j) {
}
}
}
void call();
template<unsigned Two>
void intervening_without_force_templ() {
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
call();
for(unsigned j = 0; j < 5; ++j);
}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc serial loop collapse(Two)
for(unsigned i = 0; i < 5; ++i) {
// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'serial loop' construct}}
call();
for(unsigned j = 0; j < 5; ++j);
}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc kernels loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j);
// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'kernels loop' construct}}
call();
}
#pragma acc parallel loop collapse(force:2)
for(unsigned i = 0; i < 5; ++i) {
call();
for(unsigned j = 0; j < 5; ++j);
}
#pragma acc parallel loop collapse(force:Two)
for(unsigned i = 0; i < 5; ++i) {
call();
for(unsigned j = 0; j < 5; ++j);
}
#pragma acc parallel loop collapse(force:2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j);
call();
}
#pragma acc parallel loop collapse(force:Two)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j);
call();
}
#pragma acc parallel loop collapse(Two)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
call();
}
}
#pragma acc parallel loop collapse(Two)
for(unsigned i = 0; i < 5; ++i) {
{
{
for(unsigned j = 0; j < 5; ++j) {
call();
}
}
}
}
#pragma acc parallel loop collapse(force:Two)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
call();
}
}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(Two)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j);
// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
call();
}
#pragma acc parallel loop collapse(2)
// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
// expected-note@-2{{'parallel loop' construct is here}}
for(int i = 0;;++i)
// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
// expected-note@-5{{'parallel loop' construct is here}}
for(int j = 0;;++j)
for(;;);
}
void intervening_without_force() {
intervening_without_force_templ<2>(); // expected-note{{in instantiation of function template specialization}}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
call();
for(unsigned j = 0; j < 5; ++j);
}
// expected-note@+1{{active 'collapse' clause defined here}}
#pragma acc parallel loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j);
// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
call();
}
// The below two are fine, as they use the 'force' tag.
#pragma acc parallel loop collapse(force:2)
for(unsigned i = 0; i < 5; ++i) {
call();
for(unsigned j = 0; j < 5; ++j);
}
#pragma acc parallel loop collapse(force:2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j);
call();
}
#pragma acc parallel loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
call();
}
}
#pragma acc parallel loop collapse(2)
for(unsigned i = 0; i < 5; ++i) {
{
{
for(unsigned j = 0; j < 5; ++j) {
call();
}
}
}
}
#pragma acc parallel loop collapse(force:2)
for(unsigned i = 0; i < 5; ++i) {
for(unsigned j = 0; j < 5; ++j) {
call();
}
}
#pragma acc parallel loop collapse(2)
// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
// expected-note@-2{{'parallel loop' construct is here}}
for(int i = 0;;++i)
// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
// expected-note@-5{{'parallel loop' construct is here}}
for(int j = 0;;++j)
for(;;);
}
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