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// RUN: %clang_cc1 %s -fopenacc -verify
constexpr int three() { return 3; }
constexpr int one() { return 1; }
constexpr int neg() { return -1; }
constexpr int zero() { return 0; }
struct NotConstexpr {
constexpr NotConstexpr(){};
operator int(){ return 1; }
};
struct ConvertsNegative {
constexpr ConvertsNegative(){};
constexpr operator int(){ return -1; }
};
struct ConvertsOne{
constexpr ConvertsOne(){};
constexpr operator int(){ return 1; }
};
struct ConvertsThree{
constexpr ConvertsThree(){};
constexpr operator int(){ return 3; }
};
template<typename T, int Val>
void negative_zero_constexpr_templ() {
// expected-error@+1 2{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc serial loop tile(*, T{})
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc parallel loop tile(Val, *)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc kernels loop tile(zero(), *)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
}
void negative_zero_constexpr() {
negative_zero_constexpr_templ<int, 1>(); // expected-note{{in instantiation of function template specialization}}
negative_zero_constexpr_templ<int, -1>(); // expected-note{{in instantiation of function template specialization}}
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc serial loop tile(0, *)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc parallel loop tile(1, 0)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc kernels loop tile(1, -1)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc parallel loop tile(-1, 0)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc serial loop tile(zero(), 0)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc kernels loop tile(1, neg())
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be an asterisk or a constant expression}}
#pragma acc parallel loop tile(NotConstexpr{})
for(int i = 0; i < 5; ++i);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc serial loop tile(1, ConvertsNegative{})
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
#pragma acc kernels loop tile(*, ConvertsOne{})
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
}
template<unsigned One>
void only_for_loops_templ() {
// expected-note@+1{{'parallel loop' construct is here}}
#pragma acc parallel loop tile(One)
// expected-error@+1{{OpenACC 'parallel loop' construct can only be applied to a 'for' loop}}
while(true);
// expected-note@+1{{'serial loop' construct is here}}
#pragma acc serial loop tile(One)
// expected-error@+1{{OpenACC 'serial loop' construct can only be applied to a 'for' loop}}
do {} while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc kernels loop tile(One, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{while loop cannot appear in intervening code of a 'kernels loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc serial loop tile(One, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{do loop cannot appear in intervening code of a 'serial loop' with a 'tile' clause}}
do{}while(true);
}
void only_for_loops() {
// expected-note@+1{{'parallel loop' construct is here}}
#pragma acc parallel loop tile(1)
// expected-error@+1{{OpenACC 'parallel loop' construct can only be applied to a 'for' loop}}
while(true);
// expected-note@+1{{'serial loop' construct is here}}
#pragma acc serial loop tile(1)
// expected-error@+1{{OpenACC 'serial loop' construct can only be applied to a 'for' loop}}
do {} while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc kernels loop tile(1, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{while loop cannot appear in intervening code of a 'kernels loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc parallel loop tile(1, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{do loop cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
do{}while(true);
}
template<unsigned Val>
void depth_too_high_templ() {
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc kernels loop tile (Val, *, Val) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc parallel loop tile (Val, *, Val) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{while loop cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc serial loop tile (Val, *, Val) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{do loop cannot appear in intervening code of a 'serial loop' with a 'tile' clause}}
do{}while(true);
int Arr[Val+5];
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc kernels loop tile (Val, *, Val) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(auto x : Arr)
// expected-error@+1{{while loop cannot appear in intervening code of a 'kernels loop' with a 'tile' clause}}
while(true)
for(int j = 0; j < 5; ++j);
#pragma acc parallel loop tile (Val, *, Val)
for(int i = 0; i < 5; ++i)
for(auto x : Arr)
for(int j = 0; j < 5; ++j)
while(true);
}
void depth_too_high() {
depth_too_high_templ<3>();
int Arr[5];
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc serial loop tile (1, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc parallel loop tile (1, *, 3) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{while loop cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc parallel loop tile (1, *, 3) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{do loop cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
do{}while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc parallel loop tile (1, *, 3) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{while loop cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
while(true)
for(int j = 0; j < 5; ++j);
#pragma acc parallel loop tile (1, *, 3)
for(int i = 0; i < 5; ++i)
for(auto x : Arr)
for(int j = 0; j < 5; ++j)
while(true);
}
template<unsigned Val>
void not_single_loop_templ() {
int Arr[Val];
#pragma acc parallel loop tile (Val, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr)
for(int k = 0; k < 5; ++k);
// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'parallel loop' construct with a 'tile' clause}}
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
}
void not_single_loop() {
not_single_loop_templ<3>(); // no diagnostic, was diagnosed in phase 1.
int Arr[5];
#pragma acc parallel loop tile (1, *, 3)// expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr)
for(int k = 0; k < 5; ++k);
// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'parallel loop' construct with a 'tile' clause}}
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
}
template<unsigned Val>
void no_other_directives_templ() {
int Arr[Val];
#pragma acc parallel loop tile (Val, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr) {
// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
#pragma acc serial
;
for(int j = 0; j < 5; ++j);
}
}
// OK, in innermost
#pragma acc parallel loop tile (Val, *, 3)
for(int i = 0; i < 5; ++i) {
for(int j = 0; j < 5; ++j) {
for (auto x : Arr) {
#pragma acc serial
;
}
}
}
}
void no_other_directives() {
no_other_directives_templ<3>();
int Arr[5];
#pragma acc parallel loop tile (1, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr) {
// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'parallel loop' with a 'tile' clause}}
#pragma acc serial
;
for(int j = 0; j < 5; ++j);
}
}
// OK, in innermost
#pragma acc parallel loop tile (3, *, 3)
for(int i = 0; i < 5; ++i) {
for(int j = 0; j < 5; ++j) {
for (auto x : Arr) {
#pragma acc serial
;
}
}
}
}
void call();
template<unsigned Val>
void intervening_templ() {
#pragma acc parallel loop tile(1, Val, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'parallel loop' construct}}
call();
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc parallel loop tile(1, Val, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'parallel loop' construct}}
unsigned I;
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc parallel loop tile(1, Val, *)
// 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)
// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
// expected-note@-8{{'parallel loop' construct is here}}
for(int k = 0;;++k)
call();
}
}
void intervening() {
intervening_templ<3>();
#pragma acc parallel loop tile(1, 2, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'parallel loop' construct}}
call();
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc parallel loop tile(1, 2, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'parallel loop' construct}}
unsigned I;
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc parallel loop tile(1, 2, *)
for(int i = 0; i < 5; ++i) {
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k)
call();
}
#pragma acc parallel loop tile(1, 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)
// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
// expected-note@-8{{'parallel loop' construct is here}}
for(int k = 0;;++k)
for(;;)
call();
}
}
void collapse_tile_depth() {
// expected-error@+4{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+3{{active 'collapse' clause defined here}}
// expected-error@+2{{'tile' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'tile' clause defined here}}
#pragma acc parallel loop tile(1, 2, 3) collapse (3)
for(int i = 0; i < 5;++i) {
for(int j = 0; j < 5; ++j);
}
}
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