8c1f2d15b8
to dependent declarations. Treat an id-expression that names a local variable in a templated function as being instantiation-dependent. This addresses a language defect whereby a reference to a dependent declaration can be formed without any construct being value-dependent. Fixing that through value-dependence turns out to be problematic, so instead this patch takes the approach (proposed on the core reflector) of allowing the use of pointers or references to (but not values of) dependent declarations inside value-dependent expressions, and instead treating template arguments as dependent if they evaluate to a constant involving such dependent declarations. This ends up affecting a bunch of OpenMP tests, due to OpenMP imprecisely handling instantiation-dependent constructs, bailing out early instead of processing dependent constructs to the extent possible when handling the template.
96 lines
6.4 KiB
C++
96 lines
6.4 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp %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++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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int j;
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#pragma omp target simd collapse // expected-error {{expected '(' after 'collapse'}}
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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 simd collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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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 simd collapse () // 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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// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
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// expected-error@+1 2 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
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#pragma omp target simd collapse (argc
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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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// expected-error@+1 2 {{argument to 'collapse' clause must be a strictly positive integer value}}
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#pragma omp target simd collapse (ST // expected-error {{expected ')'}} expected-note {{to match this '('}}
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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 simd collapse (1)) // expected-warning {{extra tokens at the end of '#pragma omp target simd' are ignored}}
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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 simd collapse ((ST > 0) ? 1 + ST : 2) // expected-note 2 {{as specified in 'collapse' clause}}
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for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST]; // expected-error 2 {{expected 2 for loops after '#pragma omp target simd', but found only 1}}
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// expected-error@+3 2 {{directive '#pragma omp target simd' cannot contain more than one 'collapse' clause}}
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// expected-error@+2 {{argument to 'collapse' 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 target simd collapse (foobool(argc)), collapse (true), collapse (-5)
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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 simd collapse (S) // expected-error {{'S' does not refer to a value}}
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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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// expected-error@+1 1+{{integral constant expression}} expected-note@+1 0+{{constant expression}}
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#pragma omp target simd collapse (j=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
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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 simd collapse (1)
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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 simd collapse (N) // expected-error {{argument to 'collapse' clause must be a strictly positive integer value}}
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for (T i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
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#pragma omp target simd collapse (2) // expected-note {{as specified in 'collapse' clause}}
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foo(); // expected-error {{expected 2 for loops after '#pragma omp target simd'}}
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return argc;
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}
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int main(int argc, char **argv) {
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int j;
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#pragma omp target simd collapse // expected-error {{expected '(' after 'collapse'}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target simd collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target simd collapse () // expected-error {{expected expression}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target simd collapse (4 // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-note {{as specified in 'collapse' clause}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp target simd', but found only 1}}
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#pragma omp target simd collapse (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp target simd' are ignored}} expected-note {{as specified in 'collapse' clause}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp target simd', but found only 1}}
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#pragma omp target simd collapse (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++) argv[0][i] = argv[0][i] - argv[0][i-4];
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// expected-error@+3 {{integral constant expression}} expected-note@+3 0+{{constant expression}}
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// expected-error@+2 2 {{directive '#pragma omp target simd' cannot contain more than one 'collapse' clause}}
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// expected-error@+1 {{argument to 'collapse' clause must be a strictly positive integer value}}
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#pragma omp target simd collapse (foobool(argc)), collapse (true), collapse (-5)
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
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#pragma omp target simd collapse (S1) // expected-error {{'S1' does not refer to a value}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
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// expected-error@+1 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
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#pragma omp target simd collapse (j=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
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// expected-error@+3 {{statement after '#pragma omp target simd' must be a for loop}}
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// expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, -1, -2>' requested here}}
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#pragma omp target simd collapse(collapse(tmain<int, char, -1, -2>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
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foo();
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#pragma omp target simd collapse (2) // expected-note {{as specified in 'collapse' clause}}
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foo(); // expected-error {{expected 2 for loops after '#pragma omp target simd'}}
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// expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, 1, 0>' requested here}}
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return tmain<int, char, 1, 0>(argc, argv);
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}
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