0aef005c94
Most of the restrictions on 'collapse' involve the contents of the loop, so this extends enforcement of all of that to all combined construct loops, and alters the diagnostics to better reflect the construct it is associated with.
391 lines
13 KiB
C++
391 lines
13 KiB
C++
// RUN: %clang_cc1 %s -fopenacc -verify
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template<unsigned Val>
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void depth_too_high_templ() {
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(Val)
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for(unsigned i = 0; i < 5; ++i)
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for(unsigned j = 0; j < 5; ++j);
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}
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constexpr int three() { return 3; }
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struct ConvertsThree{
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constexpr ConvertsThree(){};
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constexpr operator int(){ return 3; }
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};
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void depth_too_high() {
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depth_too_high_templ<3>(); // expected-note{{in instantiation of function template specialization}}
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc serial loop collapse(3)
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for(unsigned i = 0; i < 5; ++i)
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for(unsigned j = 0; j < 5; ++j);
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc kernels loop collapse(three())
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for(unsigned i = 0; i < 5; ++i)
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for(unsigned j = 0; j < 5; ++j);
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(ConvertsThree{})
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for(unsigned i = 0; i < 5; ++i)
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for(unsigned j = 0; j < 5; ++j);
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}
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template<typename T, unsigned Three>
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void not_single_loop_templ() {
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T Arr[5];
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1 2{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(3)
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for(auto x : Arr) {
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for(auto y : Arr){
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do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'parallel loop' with a 'collapse' clause}}
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}
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}
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1 2{{active 'collapse' clause defined here}}
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#pragma acc serial loop collapse(Three)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'serial loop' with a 'collapse' clause}}
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}
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}
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#pragma acc kernels loop collapse(Three)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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for(unsigned k = 0; k < 5;++k) {
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do{}while(true);
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}
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}
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}
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1 2{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(Three)
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for(auto x : Arr) {
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for(auto y: Arr) {
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do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'parallel loop' with a 'collapse' clause}}
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}
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}
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#pragma acc serial loop collapse(Three)
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for(auto x : Arr) {
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for(auto y: Arr) {
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for(auto z: Arr) {
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do{}while(true);
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}
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}
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}
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}
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void not_single_loop() {
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not_single_loop_templ<int, 3>(); // expected-note{{in instantiation of function template}}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc kernels loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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for(unsigned k = 0; k < 5;++k);
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}
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while(true); // expected-error{{while loop cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
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}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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for(unsigned k = 0; k < 5;++k);
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}
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do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'parallel loop' with a 'collapse' clause}}
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}
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1 2{{active 'collapse' clause defined here}}
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#pragma acc serial loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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while(true); // expected-error{{while loop cannot appear in intervening code of a 'serial loop' with a 'collapse' clause}}
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}
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}
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1 2{{active 'collapse' clause defined here}}
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#pragma acc kernels loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
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}
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}
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#pragma acc parallel loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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do{}while(true);
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}
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}
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#pragma acc serial loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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while(true);
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}
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}
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int Arr[5];
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// expected-error@+2{{'collapse' clause specifies a loop count greater than the number of available loops}}
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// expected-note@+1 2{{active 'collapse' clause defined here}}
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#pragma acc kernels loop collapse(3)
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for(auto x : Arr) {
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for(auto y : Arr){
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do{}while(true); // expected-error{{do loop cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
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}
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}
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// expected-note@+1 {{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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for(unsigned k = 0; k < 5;++k);
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}
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// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'parallel loop' construct with a 'collapse' clause}}
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for(unsigned k = 0; k < 5;++k);
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}
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// expected-note@+1 {{active 'collapse' clause defined here}}
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#pragma acc serial loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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for(unsigned k = 0; k < 5;++k);
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// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'serial loop' construct with a 'collapse' clause}}
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for(unsigned k = 0; k < 5;++k);
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}
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}
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for(unsigned k = 0; k < 5;++k);
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#pragma acc kernels loop collapse(3)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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for(unsigned k = 0; k < 5;++k);
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}
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}
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}
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template<unsigned Two, unsigned Three>
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void no_other_directives() {
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#pragma acc parallel loop collapse(Two)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {// last loop associated with the top level.
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// expected-error@+1{{'collapse' clause specifies a loop count greater than the number of available loops}}
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#pragma acc serial loop collapse(Three) // expected-note 2{{active 'collapse' clause defined here}}
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for(unsigned k = 0; k < 6;++k) {
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for(unsigned l = 0; l < 5; ++l) {
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// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'serial loop' with a 'collapse' clause}}
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#pragma acc serial
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;
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}
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}
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}
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}
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#pragma acc kernels loop collapse(Two)// expected-note{{active 'collapse' clause defined here}}
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {// last loop associated with the top level.
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#pragma acc parallel loop collapse(Three)
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for(unsigned k = 0; k < 6;++k) {
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for(unsigned l = 0; l < 5; ++l) {
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for(unsigned m = 0; m < 5; ++m);
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}
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}
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}
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// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
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#pragma acc serial
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;
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}
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}
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void no_other_directives() {
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no_other_directives<2,3>(); // expected-note{{in instantiation of function template specialization}}
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// Ok, not inside the intervening list
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#pragma acc serial loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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#pragma acc data // expected-warning{{OpenACC construct 'data' not yet implemented}}
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}
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}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc kernels loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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// expected-error@+1{{OpenACC 'data' construct cannot appear in intervening code of a 'kernels loop' with a 'collapse' clause}}
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#pragma acc data // expected-warning{{OpenACC construct 'data' not yet implemented}}
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for(unsigned j = 0; j < 5; ++j) {
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}
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}
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}
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void call();
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template<unsigned Two>
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void intervening_without_force_templ() {
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
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call();
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for(unsigned j = 0; j < 5; ++j);
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}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc serial loop collapse(Two)
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for(unsigned i = 0; i < 5; ++i) {
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// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'serial loop' construct}}
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call();
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for(unsigned j = 0; j < 5; ++j);
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}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc kernels loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j);
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// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'kernels loop' construct}}
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call();
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}
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#pragma acc parallel loop collapse(force:2)
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for(unsigned i = 0; i < 5; ++i) {
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call();
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for(unsigned j = 0; j < 5; ++j);
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}
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#pragma acc parallel loop collapse(force:Two)
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for(unsigned i = 0; i < 5; ++i) {
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call();
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for(unsigned j = 0; j < 5; ++j);
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}
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#pragma acc parallel loop collapse(force:2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j);
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call();
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}
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#pragma acc parallel loop collapse(force:Two)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j);
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call();
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}
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#pragma acc parallel loop collapse(Two)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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call();
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}
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}
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#pragma acc parallel loop collapse(Two)
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for(unsigned i = 0; i < 5; ++i) {
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{
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{
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for(unsigned j = 0; j < 5; ++j) {
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call();
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}
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}
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}
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}
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#pragma acc parallel loop collapse(force:Two)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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call();
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}
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}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(Two)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j);
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// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
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call();
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}
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#pragma acc parallel loop collapse(2)
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// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
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// expected-note@-2{{'parallel loop' construct is here}}
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for(int i = 0;;++i)
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// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
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// expected-note@-5{{'parallel loop' construct is here}}
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for(int j = 0;;++j)
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for(;;);
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}
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void intervening_without_force() {
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intervening_without_force_templ<2>(); // expected-note{{in instantiation of function template specialization}}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
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call();
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for(unsigned j = 0; j < 5; ++j);
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}
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// expected-note@+1{{active 'collapse' clause defined here}}
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#pragma acc parallel loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j);
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// expected-error@+1{{inner loops must be tightly nested inside a 'collapse' clause on a 'parallel loop' construct}}
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call();
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}
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// The below two are fine, as they use the 'force' tag.
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#pragma acc parallel loop collapse(force:2)
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for(unsigned i = 0; i < 5; ++i) {
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call();
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for(unsigned j = 0; j < 5; ++j);
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}
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#pragma acc parallel loop collapse(force:2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j);
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call();
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}
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#pragma acc parallel loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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call();
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}
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}
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#pragma acc parallel loop collapse(2)
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for(unsigned i = 0; i < 5; ++i) {
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{
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{
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for(unsigned j = 0; j < 5; ++j) {
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call();
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}
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}
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}
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}
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#pragma acc parallel loop collapse(force:2)
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for(unsigned i = 0; i < 5; ++i) {
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for(unsigned j = 0; j < 5; ++j) {
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call();
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}
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}
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#pragma acc parallel loop collapse(2)
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// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
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// expected-note@-2{{'parallel loop' construct is here}}
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for(int i = 0;;++i)
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// expected-error@+2{{OpenACC 'parallel loop' construct must have a terminating condition}}
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// expected-note@-5{{'parallel loop' construct is here}}
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for(int j = 0;;++j)
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for(;;);
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}
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