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https://github.com/Gericom/teak-llvm.git
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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
83 lines
3.0 KiB
C++
83 lines
3.0 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ferror-limit 100 %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 {{declared here}} expected-note{{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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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 {{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) {}
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S5(const S5 &s5):a(s5.a) { } // 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 {{defined as threadprivate or thread local}}
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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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int i;
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int &j = i; // expected-note {{'j' defined here}}
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#pragma omp parallel firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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#pragma omp parallel firstprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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#pragma omp parallel firstprivate () // expected-error {{expected expression}}
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#pragma omp parallel firstprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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#pragma omp parallel firstprivate (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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#pragma omp parallel firstprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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#pragma omp parallel firstprivate (argc)
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#pragma omp parallel firstprivate (S1) // expected-error {{'S1' does not refer to a value}}
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#pragma omp parallel firstprivate (a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}}
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#pragma omp parallel firstprivate (argv[1]) // expected-error {{expected variable name}}
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#pragma omp parallel firstprivate(ba)
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#pragma omp parallel firstprivate(ca)
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#pragma omp parallel firstprivate(da)
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#pragma omp parallel firstprivate(S2::S2s)
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#pragma omp parallel firstprivate(S2::S2sc)
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#pragma omp parallel 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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#pragma omp parallel firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
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#pragma omp parallel private(i), firstprivate(i) // 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(i)
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#pragma omp parallel firstprivate(i)
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#pragma omp parallel firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
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foo();
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return 0;
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}
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