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https://github.com/Gericom/teak-llvm.git
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8a8c69808c
Summary: Reduction variables are the variables, for which the private copies must be created in the OpenMP regions. Then they are initialized with the predefined values depending on the reduction operation. After exit from the OpenMP region the original variable is updated using the reduction value and the value of the original reduction variable. Reviewers: NoQ Subscribers: guansong, jdoerfert, caomhin, kkwli0, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D65106 llvm-svn: 367116
399 lines
16 KiB
C++
399 lines
16 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 150 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 150 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
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extern int omp_default_mem_alloc;
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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 parallel sections reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
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{
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for (int i = 0; i < 10; ++i)
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;
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}
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}
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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 foobar(int &ref) {
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#pragma omp parallel sections reduction(+:ref)
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{
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foo();
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}
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}
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struct S1; // expected-note {{declared here}} expected-note 4 {{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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S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
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public:
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S2() : a(0) {}
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S2(S2 &s2) : a(s2.a) {}
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static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
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static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
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};
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const float S2::S2sc = 0;
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S2 b; // expected-note 3 {{'b' defined here}}
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const S2 ba[5]; // expected-note 2 {{'ba' defined here}}
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class S3 {
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int a;
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public:
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int b;
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S3() : a(0) {}
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S3(const S3 &s3) : a(s3.a) {}
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S3 operator+(const S3 &arg1) { return arg1; }
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};
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int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
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S3 c; // expected-note 3 {{'c' defined here}}
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const S3 ca[5]; // expected-note 2 {{'ca' defined here}}
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extern const int f; // expected-note 4 {{'f' declared here}}
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class S4 {
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int a;
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S4(); // expected-note {{implicitly declared private here}}
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S4(const S4 &s4);
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S4 &operator+(const S4 &arg) { return (*this); }
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public:
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S4(int v) : a(v) {}
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};
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S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
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class S5 {
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int a;
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S5() : a(0) {} // expected-note {{implicitly declared private here}}
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S5(const S5 &s5) : a(s5.a) {}
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S5 &operator+(const S5 &arg);
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public:
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S5(int v) : a(v) {}
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};
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class S6 { // expected-note 3 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
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#if __cplusplus >= 201103L // C++11 or later
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// expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
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#endif
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int a;
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public:
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S6() : a(6) {}
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operator int() { return 6; }
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} o;
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S3 h, k;
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#pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
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template <class T> // expected-note {{declared here}}
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T tmain(T argc) {
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const T d = T(); // expected-note 4 {{'d' defined here}}
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const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
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T qa[5] = {T()};
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T i, z;
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T &j = i; // expected-note 4 {{'j' defined here}}
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S3 &p = k; // expected-note 2 {{'p' defined here}}
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const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
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T &q = qa[(int)i]; // expected-note 2 {{'q' defined here}}
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T fl;
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#pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
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{
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foo();
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}
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#pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
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{
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foo();
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}
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#pragma omp parallel sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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{
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foo();
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}
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#pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(&& : 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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{
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foo();
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}
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#pragma omp parallel sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : z, a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 2 {{'operator+' is a private member of 'S2'}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 4 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
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{
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foo();
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}
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#pragma omp parallel sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
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{
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foo();
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}
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#pragma omp parallel private(k)
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#pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel shared(i)
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#pragma omp parallel reduction(min : i)
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#pragma omp parallel sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
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{
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foo();
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}
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#pragma omp parallel private(fl)
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#pragma omp parallel sections reduction(+ : fl)
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{
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foo();
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}
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#pragma omp parallel reduction(* : fl)
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#pragma omp parallel sections reduction(+ : fl)
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{
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foo();
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}
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return T();
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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; // expected-note 2 {{'d' defined here}}
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const int da[5] = {0}; // expected-note {{'da' defined here}}
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int qa[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; // expected-note 2 {{'j' defined here}}
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S3 &p = k; // expected-note 2 {{'p' defined here}}
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const int &r = da[i]; // expected-note {{'r' defined here}}
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int &q = qa[i]; // expected-note {{'q' defined here}}
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float fl;
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#pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
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{
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foo();
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}
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#pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
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{
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foo();
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}
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#pragma omp parallel sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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{
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foo();
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}
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#pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(&& : argc)
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{
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foo();
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}
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#pragma omp parallel sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{invalid operands to binary expression ('S4' and 'S4')}} expected-error {{calling a private constructor of class 'S5'}} expected-error {{invalid operands to binary expression ('S5' and 'S5')}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : o, z) // expected-error {{no viable overloaded '='}}
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{
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foo();
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}
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#pragma omp parallel sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
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{
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foo();
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}
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#pragma omp parallel private(k)
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#pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
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{
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foo();
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}
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#pragma omp parallel sections reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
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{
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foo();
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}
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#pragma omp parallel shared(i)
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#pragma omp parallel reduction(min : i)
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#pragma omp parallel sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
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{
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foo();
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}
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#pragma omp parallel private(fl)
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#pragma omp parallel sections reduction(+ : fl)
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{
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foo();
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}
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#pragma omp parallel reduction(* : fl)
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#pragma omp parallel sections reduction(+ : fl)
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{
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foo();
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}
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static int m;
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#pragma omp parallel sections reduction(+ : m) // OK
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{
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foo();
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}
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return tmain(argc) + tmain(fl); // expected-note {{in instantiation of function template specialization 'tmain<int>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<float>' requested here}}
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}
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