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TheRock/compiler/amd-llvm/clang/test/Sema/attr-weak.c
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

31 lines
1.5 KiB
C

// RUN: %clang_cc1 -verify -fsyntax-only %s
extern int f0(void) __attribute__((weak));
extern int g0 __attribute__((weak));
extern int g1 __attribute__((weak_import));
int f2(void) __attribute__((weak));
int g2 __attribute__((weak));
int g3 __attribute__((weak_import)); // expected-warning {{'weak_import' attribute cannot be specified on a definition}}
int __attribute__((weak_import)) g4(void);
void __attribute__((weak_import)) g5(void) {
}
struct __attribute__((weak)) s0 {}; // expected-warning {{'weak' attribute only applies to variables, functions, and classes}}
struct __attribute__((weak_import)) s1 {}; // expected-warning {{'weak_import' attribute only applies to variables and functions}}
static int f(void) __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
static int x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
int C; // expected-note {{previous definition is here}}
extern int C __attribute__((weak_import)); // expected-warning {{'C' cannot be declared 'weak_import'}}
int C2; // expected-note {{previous definition is here}}
extern int C2;
extern int C2 __attribute__((weak_import)); // expected-warning {{'C2' cannot be declared 'weak_import'}}
static int pr14946_x;
extern int pr14946_x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
static void pr14946_f(void);
void pr14946_f(void) __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}