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Combined with 'da98651 - Revert "DR2064: decltype(E) is only a dependent', this change (5a391d3) caused verifier errors when building Chromium. See https://crbug.com/1168494#c1 for a reproducer. Additionally it reverts changes that were dependent on this one, see below. > Following up on PR48517, fix handling of template arguments that refer > 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. > > Previously committed as 8c1f2d15b826591cdf6bd6b468b8a7d23377b29e, and > reverted because a dependency commit was reverted. This reverts commit 5a391d38ac6c561ba908334d427f26124ed9132e. It also restores clang/test/SemaCXX/coroutines.cpp to its state before da986511fb9da1a46a0ca4dba2e49e2426036303. Revert "[c++20] P1907R1: Support for generalized non-type template arguments of scalar type." > Previously committed as 9e08e51a20d0d2b1c5724bb17e969d036fced4cd, and > reverted because a dependency commit was reverted. This incorporates the > following follow-on commits that were also reverted: > > 7e84aa1b81e72d44bcc58ffe1731bfc7abb73ce0 by Simon Pilgrim > ed13d8c66781b50ff007cb089c5905f9bb9e8af2 by me > 95c7b6cadbc9a3d4376ef44edbeb3c8bb5b8d7fc by Sam McCall > 430d5d8429473c2b10b109991d7577a3cea41140 by Dave Zarzycki This reverts commit 4b574008aef5a7235c1f894ab065fe300d26e786. Revert "[msabi] Mangle a template argument referring to array-to-pointer decay" > [msabi] Mangle a template argument referring to array-to-pointer decay > applied to an array the same as the array itself. > > This follows MS ABI, and corrects a regression from the implementation > of generalized non-type template parameters, where we "forgot" how to > mangle this case. This reverts commit 18e093faf726d15f210ab4917142beec51848258.
67 lines
4.6 KiB
C++
67 lines
4.6 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -verify -fopenmp -ferror-limit 100 -o - %s -Wuninitialized
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// RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -verify -fopenmp-simd -ferror-limit 100 -o - %s -Wuninitialized
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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; // expected-note {{declared here}} expected-note {{declared here}}
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template <class T, int N>
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T tmain(T argc) {
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T b = argc, c, d, e, f, g;
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char ** argv;
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static T a;
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T z;
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#pragma omp distribute dist_schedule // expected-error {{expected '(' after 'dist_schedule'}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule ( // expected-error {{expected 'static' in OpenMP clause 'dist_schedule'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule () // expected-error {{expected 'static' in OpenMP clause 'dist_schedule'}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (argc)) // expected-error {{expected 'static' in OpenMP clause 'dist_schedule'}} expected-warning {{extra tokens at the end of '#pragma omp distribute' are ignored}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, argc > 0 ? argv[1] : argv[2]) // expected-error2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static), dist_schedule (static, 1 + z) // expected-error {{directive '#pragma omp distribute' cannot contain more than one 'dist_schedule' clause}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, S1) // expected-error {{'S1' does not refer to a value}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error3 {{expression must have integral or unscoped enumeration type, not 'char *'}}
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for (int i = 0; i < 10; ++i) foo();
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return T();
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}
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int main(int argc, char **argv) {
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int z;
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#pragma omp distribute dist_schedule // expected-error {{expected '(' after 'dist_schedule'}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule ( // expected-error {{expected 'static' in OpenMP clause 'dist_schedule'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule () // expected-error {{expected 'static' in OpenMP clause 'dist_schedule'}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static // expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (argc)) // expected-error {{expected 'static' in OpenMP clause 'dist_schedule'}} expected-warning {{extra tokens at the end of '#pragma omp distribute' are ignored}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, argc > 0 ? argv[1] : argv[2]) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static), dist_schedule (static, 1 -z ) // expected-error {{directive '#pragma omp distribute' cannot contain more than one 'dist_schedule' clause}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, S1) // expected-error {{'S1' does not refer to a value}}
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for (int i = 0; i < 10; ++i) foo();
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#pragma omp distribute dist_schedule (static, argv[1]=2) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
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for (int i = 0; i < 10; ++i) foo();
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return (tmain<int, 5>(argc) + tmain<char, 1>(argv[0][0])); // expected-note {{in instantiation of function template specialization 'tmain<int, 5>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<char, 1>' requested here}}
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}
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