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
281 lines
10 KiB
C++
281 lines
10 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd %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 simd 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 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, z;
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int &j = i;
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#pragma omp target simd firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate() // expected-error {{expected expression}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd 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 (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(a, b, z) // expected-error {{firstprivate variable with incomplete type 'S1'}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(argv[1]) // expected-error {{expected variable name}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd 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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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp parallel
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{
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int v = 0;
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int i;
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#pragma omp target simd allocate(omp_thread_mem_alloc: i) firstprivate(i) // expected-warning {{allocator with the 'thread' trait access has unspecified behavior on 'target simd' directive}}
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for (int k = 0; k < argc; ++k) {
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i = k;
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v += i;
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}
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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 target simd firstprivate(j)
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd firstprivate(i)
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target simd lastprivate(g) firstprivate(g) // expected-error {{calling a private constructor of class 'S5'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp parallel private(i)
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#pragma omp target simd firstprivate(i) // expected-note 2 {{defined as firstprivate}}
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for (i = 0; i < argc; ++i) // expected-error 2 {{loop iteration variable in the associated loop of 'omp target simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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#pragma omp parallel reduction(+ : i)
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#pragma omp target simd firstprivate(i) // expected-note 2 {{defined as firstprivate}}
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for (i = 0; i < argc; ++i) // expected-error 2 {{loop iteration variable in the associated loop of 'omp target simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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return 0;
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}
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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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S3 m;
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S6 n(2);
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int i, z;
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int &j = i;
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#pragma omp target simd firstprivate // expected-error {{expected '(' after 'firstprivate'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate() // expected-error {{expected expression}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(argc, z)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(argv[1]) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(2 * 2) // expected-error {{expected variable name}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(ba) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(ca) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(da) // OK
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for (i = 0; i < argc; ++i)
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foo();
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int xa;
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#pragma omp target simd firstprivate(xa) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(S2::S2s) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(S2::S2sc) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd safelen(5) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd 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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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(m) // OK
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be firstprivate}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd private(xa), firstprivate(xa) // expected-error {{private variable cannot be firstprivate}} expected-note {{defined as private}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(i) // expected-note {{defined as firstprivate}}
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for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp target simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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#pragma omp parallel shared(xa)
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#pragma omp target simd firstprivate(xa) // OK: may be firstprivate
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd firstprivate(j)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd lastprivate(g) firstprivate(g) // expected-error {{calling a private constructor of class 'S5'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target simd lastprivate(n) firstprivate(n) // OK
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for (i = 0; i < argc; ++i)
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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;
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#pragma omp target simd firstprivate(i)
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for (int k = 0; k < argc; ++k) {
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i = k;
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v += i;
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}
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}
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#pragma omp parallel private(i)
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#pragma omp target simd firstprivate(i) // expected-note {{defined as firstprivate}}
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for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp target simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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#pragma omp parallel reduction(+ : i)
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#pragma omp target simd firstprivate(i) // expected-note {{defined as firstprivate}}
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for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp target simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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static int si;
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#pragma omp target simd firstprivate(si) // OK
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for (i = 0; i < argc; ++i)
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si = i + 1;
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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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