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
165 lines
5.4 KiB
C++
165 lines
5.4 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp %s -Wno-openmp-target -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd %s -Wno-openmp-target -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 target
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#pragma omp teams distribute 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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S3 &operator=(const S3 &s3);
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public:
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S3() : a(0) {} // expected-note {{candidate constructor not viable: requires 0 arguments, but 1 was provided}}
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S3(S3 &s3) : a(s3.a) {} // expected-note {{candidate constructor not viable: 1st argument ('const S3') would lose const qualifier}}
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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);
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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) { }
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public:
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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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public:
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S6() : a(0) { }
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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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S6 p;
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int i, z;
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int &j = i;
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#pragma omp target
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#pragma omp teams distribute firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate () // expected-error {{expected expression}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute 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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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate (S1) // expected-error {{'S1' does not refer to a value}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate (a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}} expected-error {{incomplete type 'S1' where a complete type is required}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate (argv[1]) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(ba, z)
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(ca) // expected-error {{no matching constructor for initialization of 'S3'}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(da)
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(S2::S2s)
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(S2::S2sc)
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute private(i), firstprivate(i) // expected-error {{private variable cannot be firstprivate}} expected-note{{defined as private}}
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for (i = 0; i < argc; ++i) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(i)
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for (j = 0; j < argc; ++j) foo();
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#pragma omp target
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#pragma omp teams distribute firstprivate(i) // expected-note {{defined as firstprivate}}
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for (i = 0; i < argc; ++i) foo(); // expected-error {{loop iteration variable in the associated loop of 'omp teams distribute' directive may not be firstprivate, predetermined as private}}
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#pragma omp target
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#pragma omp teams distribute firstprivate(j)
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for (i = 0; i < argc; ++i) foo();
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// expected-error@+2 {{lastprivate variable cannot be firstprivate}} expected-note@+2 {{defined as lastprivate}}
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#pragma omp target
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#pragma omp teams distribute lastprivate(argc), firstprivate(argc)
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for (i = 0; i < argc; ++i) foo();
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return 0;
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}
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