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https://github.com/Gericom/teak-llvm.git
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3234887fe2
Without this patch, APSInt inherits APInt::isNegative, which merely checks the sign bit without regard to whether the type is actually signed. isNonNegative and isStrictlyPositive call isNegative and so are also affected. This patch adjusts APSInt to override isNegative, isNonNegative, and isStrictlyPositive with implementations that consider whether the type is signed. A large set of Clang OpenMP tests are affected. Without this patch, these tests assume that `true` is not a valid argument for clauses like `collapse`. Indeed, `true` fails APInt::isStrictlyPositive but not APSInt::isStrictlyPositive. This patch adjusts those tests to assume `true` should be accepted. This patch also adds tests revealing various other similar fixes due to APSInt::isNegative calls in Clang's ExprConstant.cpp and SemaExpr.cpp: `++` and `--` overflow in `constexpr`, evaluated object size based on `alloc_size`, `<<` and `>>` shift count validation, and OpenMP array section validation. Reviewed By: lebedev.ri, ABataev, hfinkel Differential Revision: https://reviews.llvm.org/D59712 llvm-svn: 359012
111 lines
7.2 KiB
C++
111 lines
7.2 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp %s
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// RUN: %clang_cc1 -verify -fopenmp -std=c++98 %s
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// RUN: %clang_cc1 -verify -fopenmp -std=c++11 %s
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// RUN: %clang_cc1 -verify -fopenmp-simd %s
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// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 %s
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// RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 %s
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void foo() {
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}
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#if __cplusplus >= 201103L
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// expected-note@+2 4 {{declared here}}
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#endif
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bool foobool(int argc) {
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return argc;
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}
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struct S1; // expected-note {{declared here}}
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template <class T, typename S, int N, int ST> // expected-note {{declared here}}
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T tmain(T argc, S **argv) { //expected-note 2 {{declared here}}
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#pragma omp taskloop 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 taskloop 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 taskloop 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@+3 {{expected ')'}} expected-note@+3 {{to match this '('}}
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// expected-error@+2 2 {{expression is not an integral constant expression}}
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// expected-note@+1 2 {{read of non-const variable 'argc' is not allowed in a constant expression}}
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#pragma omp taskloop 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 taskloop 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 taskloop collapse (1)) // expected-warning {{extra tokens at the end of '#pragma omp taskloop' 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 taskloop 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 taskloop', but found only 1}}
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// expected-error@+6 2 {{directive '#pragma omp taskloop' cannot contain more than one 'collapse' clause}}
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// expected-error@+5 {{argument to 'collapse' clause must be a strictly positive integer value}}
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// expected-error@+4 2 {{expression is not an integral constant expression}}
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#if __cplusplus >= 201103L
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// expected-note@+2 2 {{non-constexpr function 'foobool' cannot be used in a constant expression}}
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#endif
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#pragma omp taskloop 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 taskloop 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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#if __cplusplus <= 199711L
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// expected-error@+4 2 {{expression is not an integral constant expression}}
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#else
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// expected-error@+2 2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
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#endif
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#pragma omp taskloop collapse (argv[1]=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 taskloop 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 taskloop 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 taskloop collapse (2) // expected-note {{as specified in 'collapse' clause}}
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foo(); // expected-error {{expected 2 for loops after '#pragma omp taskloop'}}
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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 taskloop 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 taskloop 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 taskloop 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 taskloop 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 taskloop', but found only 1}}
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#pragma omp taskloop collapse (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp taskloop' 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 taskloop', but found only 1}}
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// expected-error@+4 {{expression is not an integral constant expression}}
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#if __cplusplus >= 201103L
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// expected-note@+2 {{non-constexpr function 'foobool' cannot be used in a constant expression}}
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#endif
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#pragma omp taskloop collapse (foobool(1) > 0 ? 1 : 2)
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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@+6 {{expression is not an integral constant expression}}
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#if __cplusplus >= 201103L
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// expected-note@+4 {{non-constexpr function 'foobool' cannot be used in a constant expression}}
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#endif
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// expected-error@+2 2 {{directive '#pragma omp taskloop' 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 taskloop 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 taskloop 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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#if __cplusplus <= 199711L
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// expected-error@+4 {{expression is not an integral constant expression}}
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#else
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// expected-error@+2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
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#endif
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#pragma omp taskloop collapse (argv[1]=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 taskloop' 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 taskloop 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 taskloop collapse (2) // expected-note {{as specified in 'collapse' clause}}
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foo(); // expected-error {{expected 2 for loops after '#pragma omp taskloop'}}
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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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