llvm-project/clang/test/Sema/attr-nonblocking-constraints-ms.cpp
Doug Wyatt 7fe43ada28
[Clang] nonblocking/nonallocating attributes: 2nd pass caller/callee analysis (#99656)
- In Sema, when encountering Decls with function effects needing
verification, add them to a vector, DeclsWithEffectsToVerify.
- Update AST serialization to include DeclsWithEffectsToVerify.
- In AnalysisBasedWarnings, use DeclsWithEffectsToVerify as a work
queue, verifying functions with declared effects, and inferring (when
permitted and necessary) whether their callees have effects.

---------

Co-authored-by: Doug Wyatt <dwyatt@apple.com>
Co-authored-by: Sirraide <aeternalmail@gmail.com>
Co-authored-by: Erich Keane <ekeane@nvidia.com>
2024-10-03 02:14:51 +02:00

27 lines
981 B
C++

// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -fblocks -fcxx-exceptions -fms-extensions -verify -Wfunction-effects %s
#pragma clang diagnostic ignored "-Wperf-constraint-implies-noexcept"
// These need '-fms-extensions' (and maybe '-fdeclspec')
void f1() [[clang::nonblocking]] {
__try {} __except (1) {} // expected-warning {{function with 'nonblocking' attribute must not throw or catch exceptions}}
}
struct S {
int get_x(); // expected-note {{declaration cannot be inferred 'nonblocking' because it has no definition in this translation unit}}
__declspec(property(get = get_x)) int x;
int get_nb() { return 42; }
__declspec(property(get = get_nb)) int nb;
int get_nb2() [[clang::nonblocking]];
__declspec(property(get = get_nb2)) int nb2;
};
void f2() [[clang::nonblocking]] {
S a;
a.x; // expected-warning {{function with 'nonblocking' attribute must not call non-'nonblocking' function 'S::get_x'}}
a.nb;
a.nb2;
}