llvm-capstone/clang/test/OpenMP/target_parallel_reduction_messages.cpp
Alexey Bataev 8a8c69808c [OPENMP]Add support for analysis of reduction variables.
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
2019-07-26 14:50:05 +00:00

290 lines
16 KiB
C++

// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 150 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 150 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
typedef void **omp_allocator_handle_t;
extern const omp_allocator_handle_t omp_default_mem_alloc;
extern const omp_allocator_handle_t omp_large_cap_mem_alloc;
extern const omp_allocator_handle_t omp_const_mem_alloc;
extern const omp_allocator_handle_t omp_high_bw_mem_alloc;
extern const omp_allocator_handle_t omp_low_lat_mem_alloc;
extern const omp_allocator_handle_t omp_cgroup_mem_alloc;
extern const omp_allocator_handle_t omp_pteam_mem_alloc;
extern const omp_allocator_handle_t omp_thread_mem_alloc;
void xxx(int argc) {
int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
#pragma omp target parallel reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
for (int i = 0; i < 10; ++i)
;
}
void foo() {
}
bool foobool(int argc) {
return argc;
}
void foobar(int &ref) {
#pragma omp target parallel reduction(+:ref)
foo();
}
struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
extern S1 a;
class S2 {
mutable int a;
S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
public:
S2() : a(0) {}
S2(S2 &s2) : a(s2.a) {}
static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
};
const float S2::S2sc = 0;
S2 b; // expected-note 3 {{'b' defined here}}
const S2 ba[5]; // expected-note 2 {{'ba' defined here}}
class S3 {
int a;
public:
int b;
S3() : a(0) {}
S3(const S3 &s3) : a(s3.a) {}
S3 operator+(const S3 &arg1) { return arg1; }
};
int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
S3 c; // expected-note 3 {{'c' defined here}}
const S3 ca[5]; // expected-note 2 {{'ca' defined here}}
extern const int f; // expected-note 4 {{'f' declared here}}
class S4 {
int a;
S4(); // expected-note {{implicitly declared private here}}
S4(const S4 &s4);
S4 &operator+(const S4 &arg) { return (*this); }
public:
S4(int v) : a(v) {}
};
S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
class S5 {
int a;
S5() : a(0) {} // expected-note {{implicitly declared private here}}
S5(const S5 &s5) : a(s5.a) {}
S5 &operator+(const S5 &arg);
public:
S5(int v) : a(v) {}
};
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}}
#if __cplusplus >= 201103L // C++11 or later
// expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
#endif
int a;
public:
S6() : a(6) {}
operator int() { return 6; }
} o;
S3 h, k;
#pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
template <class T> // expected-note {{declared here}}
T tmain(T argc) {
const T d = T(); // expected-note 4 {{'d' defined here}}
const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
T qa[5] = {T()};
T i, z;
T &j = i; // expected-note 4 {{'j' defined here}}
S3 &p = k; // expected-note 2 {{'p' defined here}}
const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
T &q = qa[(int)i]; // expected-note 2 {{'q' defined here}}
T fl;
#pragma omp target parallel reduction // expected-error {{expected '(' after 'reduction'}}
foo();
#pragma omp target parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
foo();
#pragma omp target parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
foo();
#pragma omp target parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
foo();
#pragma omp target parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
foo();
#pragma omp target parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
foo();
#pragma omp target parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
foo();
#pragma omp target parallel reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
foo();
#pragma omp target parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
foo();
#pragma omp target parallel reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
foo();
#pragma omp target parallel 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'}}
foo();
#pragma omp target parallel 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 '('}}
foo();
#pragma omp target parallel reduction(^ : T) // expected-error {{'T' does not refer to a value}}
foo();
#pragma omp target parallel 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'}}
foo();
#pragma omp target parallel 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}}
foo();
#pragma omp target parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
foo();
#pragma omp target parallel reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
foo();
#pragma omp target parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
foo();
#pragma omp target parallel private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
foo();
#pragma omp parallel private(k)
#pragma omp target parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
foo();
#pragma omp target parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
foo();
#pragma omp target parallel reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel shared(i)
foo();
#pragma omp parallel reduction(min : i)
#pragma omp target parallel reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
foo();
#pragma omp target parallel
#pragma omp for private(fl)
for (int i = 0; i < 10; ++i)
{}
#pragma omp target parallel reduction(+ : fl) allocate(omp_thread_mem_alloc: fl) // expected-warning 2 {{allocator with the 'thread' trait access has unspecified behavior on 'target parallel' directive}}
foo();
#pragma omp target parallel
#pragma omp for reduction(- : fl)
for (int i = 0; i < 10; ++i)
{}
#pragma omp target parallel reduction(+ : fl)
foo();
return T();
}
namespace A {
double x;
#pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
}
namespace B {
using A::x;
}
int main(int argc, char **argv) {
const int d = 5; // expected-note 2 {{'d' defined here}}
const int da[5] = {0}; // expected-note {{'da' defined here}}
int qa[5] = {0};
S4 e(4);
S5 g(5);
int i, z;
int &j = i; // expected-note 2 {{'j' defined here}}
S3 &p = k; // expected-note 2 {{'p' defined here}}
const int &r = da[i]; // expected-note {{'r' defined here}}
int &q = qa[i]; // expected-note {{'q' defined here}}
float fl;
#pragma omp target parallel reduction // expected-error {{expected '(' after 'reduction'}}
foo();
#pragma omp target parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
foo();
#pragma omp target parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
foo();
#pragma omp target parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
foo();
#pragma omp target parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
foo();
#pragma omp target parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
foo();
#pragma omp target parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
foo();
#pragma omp target parallel reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
foo();
#pragma omp target parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
foo();
#pragma omp target parallel reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
foo();
#pragma omp target parallel reduction(~ : argc) // expected-error {{expected unqualified-id}}
foo();
#pragma omp target parallel reduction(&& : argc, z)
foo();
#pragma omp target parallel reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
foo();
#pragma omp target parallel 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'}}
foo();
#pragma omp target parallel 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}}
foo();
#pragma omp target parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
foo();
#pragma omp target parallel reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
foo();
#pragma omp target parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{nvalid 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')}}
foo();
#pragma omp target parallel reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
foo();
#pragma omp target parallel reduction(+ : o) // expected-error {{no viable overloaded '='}}
foo();
#pragma omp target parallel private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
foo();
#pragma omp parallel private(k)
#pragma omp target parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
foo();
#pragma omp target parallel reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
foo();
#pragma omp target parallel reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
foo();
#pragma omp target parallel shared(i)
foo();
#pragma omp parallel reduction(min : i)
#pragma omp target parallel reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
foo();
#pragma omp target parallel
#pragma omp for private(fl)
for (int i = 0; i < 10; ++i)
{}
#pragma omp target parallel reduction(+ : fl)
foo();
#pragma omp target parallel
#pragma omp for reduction(- : fl)
for (int i = 0; i < 10; ++i)
{}
#pragma omp target parallel reduction(+ : fl)
foo();
static int m;
#pragma omp target parallel reduction(+ : m) // OK
m++;
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}}
}