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https://github.com/Gericom/teak-llvm.git
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071dca24ce
A trivially copyable type provides a trivial copy constructor and a trivial copy assignment operator. This is enough for the runtime to memcpy the data to the device. Additionally there must be no virtual functions or virtual base classes and the destructor is guaranteed to be trivial, ie performs no action. The runtime does not require trivial default constructors because on alloc the memory is undefined. Thus, weaken the warning to be only issued if the mapped type is not trivially copyable. Differential Revision: https://reviews.llvm.org/D71134
374 lines
14 KiB
C++
374 lines
14 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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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 distribute parallel for 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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extern int omp_default_mem_alloc;
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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 2 {{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) {} // expected-note {{implicitly declared private here}}
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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, k;
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int &j = i;
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(a, b) // expected-error {{firstprivate variable with incomplete type 'S1'}} expected-warning {{Type 'const S2' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-warning {{Type 'S4' is not trivially copyable and not guaranteed to be mapped correctly}} expected-warning {{Type 'S5' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (int k = 0; k < argc; ++k)
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++k;
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(k, 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
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#pragma omp teams
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#pragma omp distribute parallel for 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 shared(i)
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#pragma omp parallel private(i)
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(i)
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for (int k = 0; k < argc; ++k)
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++k;
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// expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for lastprivate(g) firstprivate(g)
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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
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#pragma omp teams
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#pragma omp distribute parallel for 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 distribute parallel for' directive may not be firstprivate, predetermined as private}}
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foo();
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#pragma omp parallel reduction(+ : i)
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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 distribute parallel for' directive may not be firstprivate, predetermined as private}}
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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, k;
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int &j = i;
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(argc)
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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}} expected-warning {{Type 'const S2' is not trivially copyable and not guaranteed to be mapped correctly}} expected-warning {{Type 'const S3' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(ba) // expected-warning {{Type 'const S2 [5]' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(ca) // expected-warning {{Type 'const S3 [5]' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp distribute parallel for'}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-warning {{Type 'S4' is not trivially copyable and not guaranteed to be mapped correctly}} expected-warning {{Type 'S5' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(m) // expected-warning {{Type 'S3' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (i = 0; i < argc; ++i)
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foo();
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(k, 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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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 distribute parallel for' directive may not be firstprivate, predetermined as private}}
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foo();
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#pragma omp parallel shared(xa)
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for firstprivate(j)
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for (i = 0; i < argc; ++i)
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foo();
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// expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for lastprivate(g) firstprivate(g) // expected-warning {{Type 'S5' is not trivially copyable and not guaranteed to be mapped correctly}}
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for (i = 0; i < argc; ++i)
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foo();
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// expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for lastprivate(n) firstprivate(n) // expected-error {{calling a private constructor of class 'S6'}} expected-warning {{Type 'S6' is not trivially copyable and not guaranteed to be mapped correctly}}
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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
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#pragma omp teams
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#pragma omp distribute parallel for 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
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#pragma omp teams
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#pragma omp distribute parallel for 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 distribute parallel for' directive may not be firstprivate, predetermined as private}}
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foo();
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#pragma omp parallel reduction(+ : i)
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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 distribute parallel for' directive may not be firstprivate, predetermined as private}}
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foo();
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static int si;
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute parallel for 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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