mirror of
https://github.com/Gericom/teak-llvm.git
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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
336 lines
12 KiB
C++
336 lines
12 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 taskloop 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) {} // expected-note 2 {{candidate constructor not viable: requires 0 arguments, but 1 was provided}}
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S3(S3 &s3) : a(s3.a) {} // expected-note 2 {{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); // 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop simd firstprivate(a, b) // 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 parallel
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#pragma omp taskloop simd firstprivate(z, 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 taskloop simd allocate(omp_thread_mem_alloc: i) firstprivate(i) // expected-warning {{allocator with the 'thread' trait access has unspecified behavior on 'taskloop 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 taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 taskloop 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 taskloop simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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#pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
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#pragma omp taskloop simd firstprivate(i) // expected-note {{defined as firstprivate}} expected-error {{argument of a reduction clause of a parallel construct must not appear in a firstprivate clause on a task construct}}
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for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp taskloop 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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void bar(S4 a[2]) {
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#pragma omp parallel
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#pragma omp taskloop simd firstprivate(a)
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for (int i = 0; i < 2; ++i)
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foo();
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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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop simd firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}} expected-error {{no matching constructor for initialization of 'S3'}}
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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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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop simd firstprivate(ca) // expected-error {{no matching constructor for initialization of 'S3'}}
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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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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop simd safelen(5)
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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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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop simd firstprivate(h) // expected-error {{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 parallel
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#pragma omp taskloop 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 parallel
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#pragma omp taskloop 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 taskloop 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 taskloop 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 parallel
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#pragma omp taskloop simd firstprivate(j)
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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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#pragma omp taskloop 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
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#pragma omp taskloop 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 taskloop 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 taskloop 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 taskloop simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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#pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
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#pragma omp taskloop simd firstprivate(i) // expected-error {{argument of a reduction clause of a parallel construct must not appear in a firstprivate clause on a task construct}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp taskloop 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 taskloop simd' directive may not be firstprivate, predetermined as linear}}
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foo();
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#pragma omp parallel
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#pragma omp taskloop simd firstprivate(B::x) // expected-error {{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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static int si;
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#pragma omp taskloop 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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