4a5bb772c3
This patch generates some helper variables that used as private copies of the corresponding original variables inside an OpenMP 'parallel' directive. These generated variables are initialized by copy using values of the original variables (with the copy constructor, if any). For arrays, initializator is generated for single element and in the codegen procedure this initial value is automatically propagated between all elements of the private copy. 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 an implicit barier is generated 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/D5140 llvm-svn: 219306
240 lines
8.1 KiB
C++
240 lines
8.1 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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S2(const S2 &s2) : a(s2.a) {}
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static float S2s;
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static const float S2sc;
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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);
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public:
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S3() : a(0) {}
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S3(const S3 &s3) : a(s3.a) {}
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};
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const S3 c;
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const S3 ca[5];
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extern const int f;
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class S4 {
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int a;
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S4();
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S4(const S4 &s4); // expected-note 2 {{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(const S5 &s5) : a(s5.a) {} // expected-note 4 {{implicitly declared private here}}
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public:
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S5() : a(0) {}
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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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C 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
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#pragma omp single firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate() // expected-error {{expected expression}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc)
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(a, b) // expected-error {{firstprivate variable with incomplete type 'S1'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argv[1]) // expected-error {{expected variable name}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
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foo();
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#pragma omp parallel
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#pragma omp single linear(i) // expected-error {{unexpected OpenMP clause 'linear' in directive '#pragma omp single'}}
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foo();
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#pragma omp parallel
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{
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int v = 0;
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int i; // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp single' directive into a parallel or another task region?}}
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#pragma omp single firstprivate(i) // expected-error {{private variable cannot be firstprivate}}
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foo();
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v += i;
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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 single firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(i)
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(g) // expected-error {{calling a private constructor of class 'S5'}}
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foo();
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#pragma omp parallel private(i) // expected-note {{defined as private}}
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#pragma omp single firstprivate(i) // expected-error {{firstprivate variable must be shared}}
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foo();
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#pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
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#pragma omp single firstprivate(i) // expected-error {{firstprivate variable must be shared}}
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foo();
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return 0;
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}
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int main(int argc, char **argv) {
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const int d = 5;
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const int da[5] = {0};
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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; // expected-note {{'j' defined here}}
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#pragma omp parallel
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#pragma omp single firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate() // expected-error {{expected expression}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argc)
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(argv[1]) // expected-error {{expected variable name}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(2 * 2) // expected-error {{expected variable name}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(ba) // OK
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(ca) // OK
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(da) // OK
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foo();
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int xa;
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#pragma omp parallel
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#pragma omp single firstprivate(xa) // OK
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(S2::S2s) // OK
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(S2::S2sc) // OK
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foo();
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#pragma omp parallel
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#pragma omp single safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp single'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(m) // OK
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
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foo();
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#pragma omp parallel
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#pragma omp single private(xa), firstprivate(xa) // expected-error {{private variable cannot be firstprivate}} expected-note {{defined as private}}
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foo();
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#pragma omp parallel shared(xa)
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#pragma omp single firstprivate(xa) // OK: may be firstprivate
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(g) // expected-error {{calling a private constructor of class 'S5'}}
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foo();
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#pragma omp parallel
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#pragma omp single firstprivate(n) // OK
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foo();
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#pragma omp parallel
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{
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int v = 0;
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int i; // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp single' directive into a parallel or another task region?}}
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#pragma omp single firstprivate(i) // expected-error {{private variable cannot be firstprivate}}
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foo();
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v += i;
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}
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#pragma omp parallel private(i) // expected-note {{defined as private}}
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#pragma omp single firstprivate(i) // expected-error {{firstprivate variable must be shared}}
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foo();
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#pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
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#pragma omp single firstprivate(i) // expected-error {{firstprivate variable must be shared}}
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foo();
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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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