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f7f2e4261a
callee in constant evaluation. We previously made a deep copy of function parameters of class type when passing them, resulting in the destructor for the parameter applying to the original argument value, ignoring any modifications made in the function body. This also meant that the 'this' pointer of the function parameter could be observed changing between the caller and the callee. This change completely reimplements how we model function parameters during constant evaluation. We now model them roughly as if they were variables living in the caller, albeit with an artificially reduced scope that covers only the duration of the function call, instead of modeling them as temporaries in the caller that we partially "reparent" into the callee at the point of the call. This brings some minor diagnostic improvements, as well as significantly reduced stack usage during constant evaluation.
179 lines
7.0 KiB
C++
179 lines
7.0 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp -std=c++98 %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp -std=c++11 %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 %s -Wuninitialized
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// expected-note@* 0+{{declared here}}
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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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struct S1;
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template <class T, typename S, int N, int ST>
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T tmain(T argc, S **argv) {
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen // expected-error {{expected '(' after 'safelen'}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen () // expected-error {{expected expression}}
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for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (argc // expected-note {{to match this '('}} expected-error 2 {{integral constant expression}} expected-note 0+{{constant expression}} expected-error {{expected ')'}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (ST // expected-error {{argument to 'safelen' clause must be a strictly positive integer value}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (1)) // expected-warning {{extra tokens at the end of '#pragma omp distribute simd' are ignored}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen ((ST > 0) ? 1 + ST : 2)
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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// expected-error@+3 2 {{directive '#pragma omp distribute simd' cannot contain more than one 'safelen' clause}}
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// expected-error@+2 {{argument to 'safelen' clause must be a strictly positive integer value}}
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// expected-error@+1 2 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
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#pragma omp distribute simd safelen (foobool(argc)), safelen (true), safelen (-5)
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (S) // expected-error {{'S' does not refer to a value}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#if __cplusplus <= 199711L
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// expected-error@+6 2 {{integral constant expression}} expected-note@+6 0+{{constant expression}}
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#else
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// expected-error@+4 2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
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#endif
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (4)
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for (int i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (N) // expected-error {{argument to 'safelen' clause must be a strictly positive integer value}}
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for (T i = ST; i < N; i++)
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argv[0][i] = argv[0][i] - argv[0][i-ST];
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return argc;
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}
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int main(int argc, char **argv) {
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen // expected-error {{expected '(' after 'safelen'}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen () // expected-error {{expected expression}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen (4 // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp parallel for simd' are ignored}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen (foobool(1) > 0 ? 1 : 2) // expected-error {{integral constant expression}} expected-note 0+{{constant expression}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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// expected-error@+3 {{argument to 'safelen' clause must be a strictly positive integer value}}
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// expected-error@+2 2 {{directive '#pragma omp parallel for simd' cannot contain more than one 'safelen' clause}}
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// expected-error@+1 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
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#pragma omp parallel for simd safelen (foobool(argc)), safelen (true), safelen (-5)
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target
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#pragma omp teams
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#pragma omp parallel for simd safelen (S1) // expected-error {{'S1' does not refer to a value}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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#if __cplusplus <= 199711L
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// expected-error@+6 {{integral constant expression}} expected-note@+6 0+{{constant expression}}
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#else
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// expected-error@+4 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
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#endif
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 4; i < 12; i++)
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argv[0][i] = argv[0][i] - argv[0][i-4];
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// expected-note@+3 {{in instantiation of function template specialization 'tmain<int, char, -1, -2>' requested here}}
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#pragma omp target
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#pragma omp teams
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#pragma omp distribute simd safelen(safelen(tmain<int, char, -1, -2>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
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foo(); // expected-error {{statement after '#pragma omp distribute simd' must be a for loop}}
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// expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, 12, 4>' requested here}}
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return tmain<int, char, 12, 4>(argc, argv);
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}
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