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25569296c6
Summary: Firstprivate variables are the variables, for which the private copies must be created in the OpenMP regions and must be initialized with the original values. Thus, we must report if the uninitialized variable is used as firstprivate. Reviewers: NoQ Subscribers: guansong, jdoerfert, caomhin, kkwli0, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D64765 llvm-svn: 366689
105 lines
4.0 KiB
C++
105 lines
4.0 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 %s -Wuninitialized
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extern int omp_default_mem_alloc;
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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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void xxx(int argc) {
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int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
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#pragma omp parallel firstprivate(fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
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for (int i = 0; i < 10; ++i)
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;
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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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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 {{variable 'd' declared const here}}
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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, z;
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int &j = i;
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static int m;
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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) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
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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 (z, d)
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d = 5; // expected-error {{cannot assign to variable 'd' with const-qualified type}}
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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, B::x) // expected-error 2 {{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)
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#pragma omp parallel firstprivate(m)
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foo();
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return 0;
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}
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