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This patch generates some helper variables which used as a private copies of the corresponding original variables inside an OpenMP 'parallel' directive. These generated variables are initialized by default (with the default constructor, if any). In outlined function references to original variables are replaced by the references to these private helper variables. At the end of the initialization of the private variables and implicit barier is set by calling __kmpc_barrier(...) runtime function to be sure that all threads were initialized using original values of the variables. Differential Revision: http://reviews.llvm.org/D4752 llvm-svn: 220262
174 lines
5.5 KiB
C++
174 lines
5.5 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp=libiomp5 %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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};
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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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public:
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S3() : a(0) {}
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};
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const S3 ca[5];
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class S4 {
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int a;
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S4(); // expected-note {{implicitly declared private here}}
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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(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(I argc, C **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; // expected-note {{'j' defined here}}
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#pragma omp parallel for private // expected-error {{expected '(' after 'private'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for private( // 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 private() // 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 private(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 private(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 private(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 private(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 private(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 private(a, b) // expected-error {{private 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 private(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 private(e, g)
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for private(h) // expected-error {{threadprivate or thread local variable cannot be private}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for nowait // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for'}}
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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 private(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 private(j) // expected-error {{arguments of OpenMP clause 'private' cannot be of reference type}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for private(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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int main(int argc, char **argv) {
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S4 e(4);
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S5 g(5);
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int i;
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int &j = i; // expected-note {{'j' defined here}}
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#pragma omp parallel for private // expected-error {{expected '(' after 'private'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for private( // 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 private() // 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 private(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 private(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 private(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 private(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 private(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 private(a, b) // expected-error {{private 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 private(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 private(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 (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for private(h) // expected-error {{threadprivate or thread local variable cannot be private}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for nowait // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for'}}
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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 i;
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#pragma omp parallel for private(i)
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for (int k = 0; k < argc; ++k)
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++k;
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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 private(j) // expected-error {{arguments of OpenMP clause 'private' cannot be of reference type}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel for private(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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