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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
132 lines
4.8 KiB
C++
132 lines
4.8 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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typedef void **omp_allocator_handle_t;
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extern const omp_allocator_handle_t omp_default_mem_alloc;
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extern const omp_allocator_handle_t omp_large_cap_mem_alloc;
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extern const omp_allocator_handle_t omp_const_mem_alloc;
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extern const omp_allocator_handle_t omp_high_bw_mem_alloc;
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extern const omp_allocator_handle_t omp_low_lat_mem_alloc;
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extern const omp_allocator_handle_t omp_cgroup_mem_alloc;
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extern const omp_allocator_handle_t omp_pteam_mem_alloc;
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extern const omp_allocator_handle_t omp_thread_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 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;
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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 target parallel firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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foo();
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#pragma omp target parallel firstprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp target parallel firstprivate () // expected-error {{expected expression}}
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foo();
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#pragma omp target parallel firstprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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foo();
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#pragma omp target parallel 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 target parallel firstprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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foo();
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#pragma omp target 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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foo();
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#pragma omp target parallel firstprivate (S1) // expected-error {{'S1' does not refer to a value}}
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foo();
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#pragma omp target parallel 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 target parallel firstprivate (argv[1]) // expected-error {{expected variable name}}
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foo();
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#pragma omp target parallel firstprivate(ba) allocate(omp_thread_mem_alloc: ba) // expected-warning {{allocator with the 'thread' trait access has unspecified behavior on 'target parallel' directive}}
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foo();
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#pragma omp target parallel firstprivate(ca, z)
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foo();
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#pragma omp target parallel firstprivate(da)
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foo();
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#pragma omp target parallel firstprivate(S2::S2s)
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foo();
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#pragma omp target parallel firstprivate(S2::S2sc)
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foo();
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#pragma omp target 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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foo();
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#pragma omp target parallel firstprivate(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be firstprivate}}
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foo();
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#pragma omp target 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 target parallel shared(i)
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foo();
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#pragma omp target parallel firstprivate(i)
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foo();
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#pragma omp target parallel firstprivate(j)
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foo();
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#pragma omp target parallel firstprivate(m)
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foo();
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return 0;
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}
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