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e6234d1429
The following appears in OpenMP 3.1 sec. 2.9.1.1 as a predetermined data-sharing attribute: > Variables with const-qualified type having no mutable member are > shared. It does not appear in OpenmP 4.0, 4.5, or 5.0. This patch removes the implementation of that attribute when the requested OpenMP version is greater than 3.1. One effect of that removal is that `default(none)` affects const variables without mutable members. Also, without this patch, if a const variable without mutable members was explicitly lastprivate or private, it was an error because it was predetermined shared. Now, clang instead complains that it's const without mutable fields, which is a more intelligible diagnostic. That should be fine for all of the above versions because they all have something like the following, which is quoted from OpenMP 5.0 sec. 2.19.3: > A variable that is privatized must not have a const-qualified type > unless it is of class type with a mutable member. This restriction does > not apply to the firstprivate clause. reduction and linear clauses already have separate checks for const variables. Future patches will merge the implementations. Reviewed By: ABataev Differential Revision: https://reviews.llvm.org/D56113 llvm-svn: 350439
242 lines
8.6 KiB
C++
242 lines
8.6 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp %s
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// RUN: %clang_cc1 -verify -fopenmp-simd %s
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void foo() {
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}
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bool foobool(int argc) {
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return argc;
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}
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struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
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extern S1 a;
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class S2 {
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mutable int a;
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public:
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S2() : a(0) {}
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S2(S2 &s2) : a(s2.a) {}
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const S2 &operator=(const S2 &) const;
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static float S2s; // expected-note {{static data member is predetermined as shared}}
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static const float S2sc; // expected-note {{'S2sc' declared here}}
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};
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const float S2::S2sc = 0;
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const S2 b;
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const S2 ba[5];
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class S3 {
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int a;
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S3 &operator=(const S3 &s3); // expected-note 2 {{implicitly declared private here}}
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public:
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S3() : a(0) {}
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S3(S3 &s3) : a(s3.a) {}
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};
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const S3 c; // expected-note {{'c' defined here}}
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const S3 ca[5]; // expected-note {{'ca' defined here}}
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extern const int f; // expected-note {{'f' declared here}}
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class S4 {
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int a;
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S4(); // expected-note 3 {{implicitly declared private here}}
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S4(const S4 &s4);
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public:
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S4(int v) : a(v) {}
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};
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class S5 {
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int a;
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S5() : a(0) {} // expected-note {{implicitly declared private here}}
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public:
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S5(const S5 &s5) : a(s5.a) {}
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S5(int v) : a(v) {}
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};
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class S6 {
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int a;
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S6() : a(0) {}
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public:
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S6(const S6 &s6) : a(s6.a) {}
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S6(int v) : a(v) {}
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};
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S3 h;
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#pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
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template <class I, class C>
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int foomain(int argc, char **argv) {
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I e(4);
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I g(5);
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int i;
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int &j = i;
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#pragma omp parallel for simd lastprivate // expected-error {{expected '(' after 'lastprivate'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate() // expected-error {{expected expression}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(argc)
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(S1) // expected-error {{'S1' does not refer to a value}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(a, b) // expected-error {{lastprivate variable with incomplete type 'S1'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(argv[1]) // expected-error {{expected variable name}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(e, g) // expected-error 2 {{calling a private constructor of class 'S4'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(h) // expected-error {{threadprivate or thread local variable cannot be lastprivate}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd linear(i)
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel
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{
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int v = 0;
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int i;
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#pragma omp parallel for simd lastprivate(i)
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for (int k = 0; k < argc; ++k) {
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i = k;
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v += i;
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}
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}
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#pragma omp parallel shared(i)
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#pragma omp parallel private(i)
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#pragma omp parallel for simd lastprivate(j)
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for simd lastprivate(i)
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for (int k = 0; k < argc; ++k)
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++k;
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return 0;
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}
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namespace A {
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double x;
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#pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
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}
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namespace B {
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using A::x;
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}
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int main(int argc, char **argv) {
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const int d = 5; // expected-note {{'d' defined here}}
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const int da[5] = {0}; // expected-note {{'da' defined here}}
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S4 e(4);
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S5 g(5);
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S3 m;
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S6 n(2);
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int i;
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int &j = i;
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#pragma omp parallel for simd lastprivate // expected-error {{expected '(' after 'lastprivate'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate() // expected-error {{expected expression}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(argc)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(S1) // expected-error {{'S1' does not refer to a value}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(a, b, c, d, f) // expected-error {{lastprivate variable with incomplete type 'S1'}} expected-error 1 {{const-qualified variable without mutable fields cannot be lastprivate}} expected-error 2 {{const-qualified variable cannot be lastprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(argv[1]) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(2 * 2) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(ba)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(ca) // expected-error {{const-qualified variable without mutable fields cannot be lastprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(da) // expected-error {{const-qualified variable cannot be lastprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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int xa;
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#pragma omp parallel for simd lastprivate(xa) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(S2::S2s) // expected-error {{shared variable cannot be lastprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(S2::S2sc) // expected-error {{const-qualified variable cannot be lastprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd safelen(5)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(m) // expected-error {{'operator=' is a private member of 'S3'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be lastprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd private(xa), lastprivate(xa) // expected-error {{private variable cannot be lastprivate}} expected-note {{defined as private}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(i) // expected-note {{defined as lastprivate}}
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for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be lastprivate, predetermined as linear}}
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foo();
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#pragma omp parallel private(xa)
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#pragma omp parallel for simd lastprivate(xa)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel reduction(+ : xa)
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#pragma omp parallel for simd lastprivate(xa)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(j)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd firstprivate(m) lastprivate(m) // expected-error {{'operator=' is a private member of 'S3'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel for simd lastprivate(n) firstprivate(n) // OK
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for (i = 0; i < argc; ++i)
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foo();
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static int si;
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#pragma omp parallel for simd lastprivate(si) // OK
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for (i = 0; i < argc; ++i)
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si = i + 3;
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return foomain<S4, S5>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<S4, S5>' requested here}}
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}
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