8c1f2d15b8
to dependent declarations. Treat an id-expression that names a local variable in a templated function as being instantiation-dependent. This addresses a language defect whereby a reference to a dependent declaration can be formed without any construct being value-dependent. Fixing that through value-dependence turns out to be problematic, so instead this patch takes the approach (proposed on the core reflector) of allowing the use of pointers or references to (but not values of) dependent declarations inside value-dependent expressions, and instead treating template arguments as dependent if they evaluate to a constant involving such dependent declarations. This ends up affecting a bunch of OpenMP tests, due to OpenMP imprecisely handling instantiation-dependent constructs, bailing out early instead of processing dependent constructs to the extent possible when handling the template.
356 lines
17 KiB
C++
356 lines
17 KiB
C++
// RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-version=45 -fopenmp -ferror-limit 200 -std=c++11 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-version=50 -fopenmp -ferror-limit 200 -std=c++11 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-version=45 -fopenmp-simd -ferror-limit 200 -std=c++11 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-version=50 -fopenmp-simd -ferror-limit 200 -std=c++11 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-version=51 -DOMP51 -fopenmp -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-version=51 -DOMP51 -fopenmp-simd -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
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void xxx(int argc) {
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int x; // expected-note {{initialize the variable 'x' to silence this warning}}
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#pragma omp task
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argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
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}
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void foo() {
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#pragma omp task detach(0) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{'omp_event_handle_t' type not found; include <omp.h>}}
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;
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}
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typedef unsigned long omp_event_handle_t;
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namespace {
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static int y = 0;
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}
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static int x = 0;
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#pragma omp task // expected-error {{unexpected OpenMP directive '#pragma omp task'}}
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class S {
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S(const S &s) { a = s.a + 12; } // expected-note 16 {{implicitly declared private here}}
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int a;
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public:
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S() : a(0) {}
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S(int a) : a(a) {}
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operator int() { return a; }
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S &operator++() { return *this; }
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S operator+(const S &) { return *this; }
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};
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class S1 {
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int a;
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public:
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S1() : a(0) {}
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S1 &operator++() { return *this; }
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S1(const S1 &) = delete; // expected-note 2 {{'S1' has been explicitly marked deleted here}}
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};
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template <class T>
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int foo() {
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T a;
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T &b = a;
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int r;
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S1 s1;
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// expected-error@+1 2 {{call to deleted constructor of 'S1'}}
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#pragma omp task
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++s1;
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#pragma omp task default(none) // expected-note 2 {{explicit data sharing attribute requested here}}
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#pragma omp task default(shared)
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++a; // expected-error 2 {{variable 'a' must have explicitly specified data sharing attributes}}
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#ifdef OMP51
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#pragma omp task default(firstprivate) // expected-note 4 {{explicit data sharing attribute requested here}}
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#pragma omp task
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{
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++x; // expected-error 2 {{variable 'x' must have explicitly specified data sharing attributes}}
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++y; // expected-error 2 {{variable 'y' must have explicitly specified data sharing attributes}}
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}
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#endif
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#pragma omp task default(none) // expected-note 2 {{explicit data sharing attribute requested here}}
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#pragma omp task
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// expected-error@+1 {{calling a private constructor of class 'S'}}
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++a; // expected-error 2 {{variable 'a' must have explicitly specified data sharing attributes}}
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#pragma omp task
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#pragma omp task
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// expected-error@+1 {{calling a private constructor of class 'S'}}
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++a; // expected-error {{calling a private constructor of class 'S'}}
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#pragma omp task default(shared)
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#pragma omp task
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// expected-error@+1 {{calling a private constructor of class 'S'}}
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++a;
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#pragma omp parallel shared(a)
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#pragma omp task
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#pragma omp task
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++a;
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#pragma omp parallel shared(a)
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#pragma omp task default(shared)
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#pragma omp task
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++a;
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#pragma omp task
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#pragma omp parallel
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++a; // expected-error {{calling a private constructor of class 'S'}}
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// expected-error@+2 {{calling a private constructor of class 'S'}}
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#pragma omp task
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++b;
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#pragma omp task
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// expected-error@+1 2 {{calling a private constructor of class 'S'}}
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#pragma omp parallel shared(a, b)
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++a, ++b;
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp parallel reduction(+ : r)
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// expected-error@+1 2 {{argument of a reduction clause of a parallel construct must not appear in a firstprivate clause on a task construct}}
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#pragma omp task firstprivate(r)
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++r;
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp parallel reduction(+ : r)
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#pragma omp task default(shared)
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// expected-error@+1 2 {{reduction variables may not be accessed in an explicit task}}
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++r;
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp parallel reduction(+ : r)
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#pragma omp task
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// expected-error@+1 2 {{reduction variables may not be accessed in an explicit task}}
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++r;
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#pragma omp parallel
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp for reduction(+ : r)
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for (int i = 0; i < 10; ++i)
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// expected-error@+1 2 {{argument of a reduction clause of a for construct must not appear in a firstprivate clause on a task construct}}
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#pragma omp task firstprivate(r)
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++r;
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#pragma omp parallel
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp for reduction(+ : r)
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for (int i = 0; i < 10; ++i)
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#pragma omp task default(shared)
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// expected-error@+1 2 {{reduction variables may not be accessed in an explicit task}}
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++r;
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#pragma omp parallel
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp for reduction(+ : r)
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for (int i = 0; i < 10; ++i)
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#pragma omp task
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// expected-error@+1 2 {{reduction variables may not be accessed in an explicit task}}
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++r;
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// expected-note@+1 {{non-shared variable in a task construct is predetermined as firstprivate}}
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#pragma omp task
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// expected-error@+2 {{reduction variable must be shared}}
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// expected-error@+1 {{region cannot be closely nested inside 'task' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
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#pragma omp for reduction(+ : r)
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++r;
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// expected-error@+1 {{directive '#pragma omp task' cannot contain more than one 'untied' clause}}
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#pragma omp task untied untied
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++r;
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// expected-error@+1 {{directive '#pragma omp task' cannot contain more than one 'mergeable' clause}}
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#pragma omp task mergeable mergeable
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++r;
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volatile omp_event_handle_t evt;
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const omp_event_handle_t cevt = 0;
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omp_event_handle_t sevt;
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omp_event_handle_t &revt = sevt;
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#pragma omp task detach // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{expected '(' after 'detach'}}
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#pragma omp task detach( // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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#pragma omp task detach() // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{expected expression}}
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#pragma omp task detach(a) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{expected variable of the 'omp_event_handle_t' type, not 'int'}} omp50-error {{expected variable of the 'omp_event_handle_t' type, not 'S'}}
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;
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#pragma omp task detach(evt) detach(evt) // omp45-error 2 {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{directive '#pragma omp task' cannot contain more than one 'detach' clause}}
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#pragma omp task detach(cevt) detach(revt) // omp45-error 2 {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{directive '#pragma omp task' cannot contain more than one 'detach' clause}}
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#pragma omp task detach(evt) mergeable // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{'mergeable' and 'detach' clause are mutually exclusive and may not appear on the same directive}} omp50-note {{'detach' clause is specified here}}
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;
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#pragma omp task mergeable detach(evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{'detach' and 'mergeable' clause are mutually exclusive and may not appear on the same directive}} omp50-note {{'mergeable' clause is specified here}}
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#pragma omp task detach(-evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}}
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;
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#pragma omp task detach(evt) shared(evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}}
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#pragma omp task detach(evt) firstprivate(evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}}
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;
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return a + b;
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}
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int main(int argc, char **argv) {
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int a;
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int &b = a;
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S sa;
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S &sb = sa;
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int r;
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#pragma omp task { // expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
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foo();
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#pragma omp task( // expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
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foo();
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#pragma omp task[ // expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
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foo();
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#pragma omp task] // expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
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foo();
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#pragma omp task) // expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
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foo();
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#pragma omp task } // expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
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foo();
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#pragma omp task
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// expected-warning@+1 {{extra tokens at the end of '#pragma omp task' are ignored}}
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#pragma omp task unknown()
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foo();
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L1:
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foo();
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#pragma omp task
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;
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#pragma omp task
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{
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goto L1; // expected-error {{use of undeclared label 'L1'}}
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argc++;
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}
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for (int i = 0; i < 10; ++i) {
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switch (argc) {
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case (0):
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#pragma omp task
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{
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foo();
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break; // expected-error {{'break' statement not in loop or switch statement}}
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continue; // expected-error {{'continue' statement not in loop statement}}
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}
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default:
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break;
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}
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}
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#pragma omp task default(none) // expected-note {{explicit data sharing attribute requested here}}
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++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
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goto L2; // expected-error {{use of undeclared label 'L2'}}
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#pragma omp task
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L2:
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foo();
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#pragma omp task
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{
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return 1; // expected-error {{cannot return from OpenMP region}}
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}
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[[]] // expected-error {{an attribute list cannot appear here}}
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#pragma omp task
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for (int n = 0; n < 100; ++n) {
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}
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#pragma omp task default(none) // expected-note {{explicit data sharing attribute requested here}}
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#pragma omp task default(shared)
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++a; // expected-error {{variable 'a' must have explicitly specified data sharing attributes}}
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#pragma omp task default(none) // expected-note {{explicit data sharing attribute requested here}}
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#pragma omp task
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++a; // expected-error {{variable 'a' must have explicitly specified data sharing attributes}}
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#pragma omp task default(shared)
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#pragma omp task
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++a;
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#pragma omp task
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#pragma omp parallel
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++a;
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#pragma omp task
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++b;
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#pragma omp task
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#pragma omp parallel shared(a, b)
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++a, ++b;
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#pragma omp task default(none) // expected-note {{explicit data sharing attribute requested here}}
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#pragma omp task default(shared)
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++sa; // expected-error {{variable 'sa' must have explicitly specified data sharing attributes}}
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#pragma omp task default(none) // expected-note {{explicit data sharing attribute requested here}}
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#pragma omp task
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// expected-error@+1 {{calling a private constructor of class 'S'}}
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++sa; // expected-error {{variable 'sa' must have explicitly specified data sharing attributes}}
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#pragma omp task
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#pragma omp task
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// expected-error@+1 {{calling a private constructor of class 'S'}}
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++sa; // expected-error {{calling a private constructor of class 'S'}}
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#pragma omp task default(shared)
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#pragma omp task
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// expected-error@+1 {{calling a private constructor of class 'S'}}
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++sa;
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#pragma omp parallel shared(sa)
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#pragma omp task
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#pragma omp task
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++sa;
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#pragma omp parallel shared(sa)
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#pragma omp task default(shared)
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#pragma omp task
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++sa;
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#pragma omp task
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#pragma omp parallel
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++sa; // expected-error {{calling a private constructor of class 'S'}}
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// expected-error@+2 {{calling a private constructor of class 'S'}}
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#pragma omp task
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++sb;
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// expected-error@+2 2 {{calling a private constructor of class 'S'}}
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#pragma omp task
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#pragma omp parallel shared(sa, sb)
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++sa, ++sb;
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp parallel reduction(+ : r)
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// expected-error@+1 {{argument of a reduction clause of a parallel construct must not appear in a firstprivate clause on a task construct}}
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#pragma omp task firstprivate(r)
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// expected-error@+1 {{reduction variables may not be accessed in an explicit task}}
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++r;
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// expected-note@+1 {{defined as reduction}}
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#pragma omp parallel reduction(+ : r)
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#pragma omp task default(shared)
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// expected-error@+1 {{reduction variables may not be accessed in an explicit task}}
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++r;
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// expected-note@+1 {{defined as reduction}}
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#pragma omp parallel reduction(+ : r)
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#pragma omp task
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// expected-error@+1 {{reduction variables may not be accessed in an explicit task}}
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++r;
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#pragma omp parallel
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// expected-note@+1 2 {{defined as reduction}}
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#pragma omp for reduction(+ : r)
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for (int i = 0; i < 10; ++i)
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// expected-error@+1 {{argument of a reduction clause of a for construct must not appear in a firstprivate clause on a task construct}}
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#pragma omp task firstprivate(r)
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// expected-error@+1 {{reduction variables may not be accessed in an explicit task}}
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++r;
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#pragma omp parallel
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// expected-note@+1 {{defined as reduction}}
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#pragma omp for reduction(+ : r)
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for (int i = 0; i < 10; ++i)
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#pragma omp task default(shared)
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// expected-error@+1 {{reduction variables may not be accessed in an explicit task}}
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++r;
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#pragma omp parallel
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// expected-note@+1 {{defined as reduction}}
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#pragma omp for reduction(+ : r)
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for (int i = 0; i < 10; ++i)
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#pragma omp task
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// expected-error@+1 {{reduction variables may not be accessed in an explicit task}}
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++r;
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// expected-note@+1 {{non-shared variable in a task construct is predetermined as firstprivate}}
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#pragma omp task
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// expected-error@+2 {{reduction variable must be shared}}
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// expected-error@+1 {{region cannot be closely nested inside 'task' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
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#pragma omp for reduction(+ : r)
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++r;
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// expected-error@+1 {{directive '#pragma omp task' cannot contain more than one 'untied' clause}}
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#pragma omp task untied untied
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++r;
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// expected-error@+1 {{directive '#pragma omp task' cannot contain more than one 'mergeable' clause}}
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#pragma omp task mergeable mergeable
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++r;
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volatile omp_event_handle_t evt;
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omp_event_handle_t sevt;
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const omp_event_handle_t cevt = evt;
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omp_event_handle_t &revt = sevt;
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#pragma omp task detach // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{expected '(' after 'detach'}}
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#pragma omp task detach( // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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#pragma omp task detach() // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{expected expression}}
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#pragma omp task detach(a) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{expected variable of the 'omp_event_handle_t' type, not 'int'}}
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#pragma omp task detach(evt) detach(evt) // omp45-error 2 {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{directive '#pragma omp task' cannot contain more than one 'detach' clause}}
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#pragma omp task detach(cevt) detach(revt) // omp45-error 2 {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} expected-error {{directive '#pragma omp task' cannot contain more than one 'detach' clause}} omp50-error {{expected variable of the 'omp_event_handle_t' type, not 'const omp_event_handle_t' (aka 'const unsigned long')}} omp50-error {{expected variable of the 'omp_event_handle_t' type, not 'omp_event_handle_t &' (aka 'unsigned long &')}}
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#pragma omp task detach(evt) mergeable // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{'mergeable' and 'detach' clause are mutually exclusive and may not appear on the same directive}} omp50-note {{'detach' clause is specified here}}
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;
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#pragma omp task mergeable detach(evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{'detach' and 'mergeable' clause are mutually exclusive and may not appear on the same directive}} omp50-note {{'mergeable' clause is specified here}}
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#pragma omp task detach(-evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}} omp50-error {{expected variable of the 'omp_event_handle_t' type}}
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;
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#pragma omp task detach(evt) shared(evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}}
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#pragma omp task detach(evt) firstprivate(evt) // omp45-error {{unexpected OpenMP clause 'detach' in directive '#pragma omp task'}}
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;
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// expected-note@+2 {{in instantiation of function template specialization 'foo<int>' requested here}}
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// expected-note@+1 {{in instantiation of function template specialization 'foo<S>' requested here}}
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return foo<int>() + foo<S>();
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}
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