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// RUN: %clang_cc1 %s -fopenacc -verify -Wno-empty-body -Wno-unused-value
namespace std {
struct random_access_iterator_tag{};
}
struct SomeStruct{
void operator++();
void operator++(int);
};
struct SomeIterator {
bool operator!=(SomeIterator&);
void operator++();
void operator++(int);
int operator*();
};
struct SomeRAIterator {
using iterator_category = std::random_access_iterator_tag;
SomeRAIterator();
SomeRAIterator(int i);
void operator=(int i);
SomeRAIterator &operator=(SomeRAIterator&);
void operator++(int);
void operator++();
int operator*();
void operator+=(int);
bool operator!=(SomeRAIterator&);
};
SomeRAIterator &operator+(const SomeRAIterator&, int);
SomeRAIterator &operator+(int,const SomeRAIterator&);
SomeRAIterator &operator-(const SomeRAIterator&, int);
SomeRAIterator &operator-(int,const SomeRAIterator&);
struct HasIteratorCollection {
SomeIterator &begin();
SomeIterator &end();
};
struct HasRAIteratorCollection {
SomeRAIterator &begin();
SomeRAIterator &end();
};
void func_call();
template<typename Int, typename IntPtr, typename Float, typename Struct, typename Iterator, typename RandAccessIterator>
void SeqLoopRules() {
// No rules in this section!
#pragma acc loop seq
for(;;);
#pragma acc loop seq
for(float f;;);
#pragma acc loop seq
for(int f;;);
#pragma acc loop seq
for(int f,g;;);
#pragma acc loop seq
for(Int f;;);
#pragma acc loop seq
for(Int *f;;);
#pragma acc loop seq
for(IntPtr f;;);
#pragma acc loop seq
for(Float *f;;);
#pragma acc loop seq
for(SomeStruct f;;);
#pragma acc loop seq
for(Struct f;;);
#pragma acc loop seq
for(SomeIterator f;;);
#pragma acc loop seq
for(Iterator f;;);
#pragma acc loop seq
for(SomeRAIterator f;;);
#pragma acc loop seq
for(RandAccessIterator f;;);
#pragma acc loop seq
for(Int f;;);
#pragma acc loop seq
for(Int f;;++f);
#pragma acc loop seq
for(Int f;;f+=1);
int i;
#pragma acc loop seq
for(Int f;;i+=1);
#pragma acc loop seq
for(Int f;;i++);
#pragma acc loop seq
for(RandAccessIterator f;;i++);
#pragma acc loop seq
for(RandAccessIterator f;;func_call());
Int Array[5];
#pragma acc loop seq
for(auto X : Array);
#pragma acc loop seq
for(auto X : HasIteratorCollection{});
#pragma acc loop seq
for(auto X : HasRAIteratorCollection{});
RandAccessIterator f;
#pragma acc loop seq
for(f;;f++);
#pragma acc loop seq
for(f = 0;;++f);
#pragma acc loop seq
for(f = 0;;f++);
#pragma acc loop seq
for(f = 0;;f+=1);
}
template<typename Int, typename IntPtr, typename Float, typename Struct, typename Iterator, typename RandAccessIterator>
void LoopRules() {
// Loop variable must be integer, pointer, or random_access_iterator
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(;;);
#pragma acc loop
// expected-error@+6{{loop variable of loop associated with an OpenACC 'loop' construct must be of integer, pointer, or random-access-iterator type (is 'float')}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(float f = 0;;);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(int f;;);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(int f,g;;);
#pragma acc loop
// expected-error@+4{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
for(Int f;;++f);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(Int *f = nullptr;;++f);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(IntPtr f = nullptr;;++f);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(Float *f = nullptr;;++f);
#pragma acc loop
// expected-error@+6{{loop variable of loop associated with an OpenACC 'loop' construct must be of integer, pointer, or random-access-iterator type (is 'SomeStruct')}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(SomeStruct f;;);
#pragma acc loop
// expected-error@+4{{loop variable of loop associated with an OpenACC 'loop' construct must be of integer, pointer, or random-access-iterator type (is 'SomeStruct')}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
for(Struct f;;++f);
#pragma acc loop
// expected-error@+4{{loop variable of loop associated with an OpenACC 'loop' construct must be of integer, pointer, or random-access-iterator type (is 'SomeIterator')}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
for(SomeIterator f;;++f);
#pragma acc loop
// expected-error@+4{{loop variable of loop associated with an OpenACC 'loop' construct must be of integer, pointer, or random-access-iterator type (is 'SomeIterator')}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
for(Iterator f;;++f);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(SomeRAIterator f;;++f);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(RandAccessIterator f;;++f);
Int i;
#pragma acc loop
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-4{{'loop' construct is here}}
for( i = 0;;);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for( i;;);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for( int j ;;);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for( int j, k = 0;;);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(Int f;;);
#pragma acc loop
// expected-error@+4{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
for(Int f;;++f);
#pragma acc loop
// expected-error@+4{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
for(Int f;;f+=1);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(Int f;;i+=1);
#pragma acc loop
// expected-error@+6{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-4{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-6{{'loop' construct is here}}
for(Int f;;i++);
#pragma acc loop
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-4{{'loop' construct is here}}
for(RandAccessIterator f;;i++);
#pragma acc loop
// expected-error@+4{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
// expected-error@+2{{OpenACC 'loop' variable must monotonically increase or decrease ('++', '--', or compound assignment)}}
// expected-note@-4{{'loop' construct is here}}
for(RandAccessIterator f;;func_call());
// Not much we can do here other than check for random access iterator.
Int Array[5];
#pragma acc loop
for(auto X : Array);
#pragma acc loop
// expected-error@+2{{loop variable of loop associated with an OpenACC 'loop' construct must be of integer, pointer, or random-access-iterator type (is 'SomeIterator')}}
// expected-note@-2{{'loop' construct is here}}
for(auto X : HasIteratorCollection{});
#pragma acc loop
for(auto X : HasRAIteratorCollection{});
RandAccessIterator end;
#pragma acc loop
for(RandAccessIterator f = 0; f != end; ++f);
RandAccessIterator f;
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have initialization clause in canonical form ('var = init' or 'T var = init'}}
// expected-note@-2{{'loop' construct is here}}
for(f;f != end;f++);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(f = 0;;++f);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(f = 0;;f++);
#pragma acc loop
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(f = 0;;f+=1);
#pragma acc loop
for(f = 0;f != end;++f);
#pragma acc loop
for(f = 0;f != end;f++);
#pragma acc loop
for(f = 0;f != end;f+=1);
#pragma acc loop
for (int i = 0; 5 >= i; ++i);
int otherI;
// expected-error@+3{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop
for (int i = 0; otherI != 5; ++i);
// expected-error@+3{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop
for (int i = 0; i != 5 && i < 3; ++i);
// expected-error@+3{{OpenACC 'loop' variable must monotonically increase or decrease}}
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop
for (int i = 0; i != 5; ++f);
}
void inst() {
SeqLoopRules<int, int*, float, SomeStruct, SomeIterator, SomeRAIterator>();
// expected-note@+1{{in instantiation of function template specialization}}
LoopRules<int, int*, float, SomeStruct, SomeIterator, SomeRAIterator>();
}
void allowTrivialAssignStep(int N) {
#pragma acc loop
for(int i = 0; i !=5; i = i + N);
#pragma acc loop
for(int i = 0; i !=5; i = i - N);
#pragma acc loop
for(int i = 0; i !=5; i = N + i);
// expected-error@+3{{OpenACC 'loop' variable must monotonically increase or decrease}}
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop
for(int i = 0; i !=5; i = N - i);
// expected-error@+3{{OpenACC 'loop' variable must monotonically increase or decrease}}
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop
for(int i = 0; i !=5; i = N + N);
HasRAIteratorCollection Col;
#pragma acc loop
for (auto Itr = Col.begin(); Itr != Col.end(); Itr = Itr + N);
#pragma acc loop
for (auto Itr = Col.begin(); Itr != Col.end(); Itr = Itr - N);
#pragma acc loop
for (auto Itr = Col.begin(); Itr != Col.end(); Itr = N + Itr);
// expected-error@+3{{OpenACC 'loop' variable must monotonically increase or decrease}}
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop
for (auto Itr = Col.begin(); Itr != Col.end(); Itr = N - Itr);
}
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