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

41 lines
1.3 KiB
C

// RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE
// RUN: %clang_cc1 -fsyntax-only -verify %s -DALL -Wgnu
// RUN: %clang_cc1 -fsyntax-only -verify %s -DALL \
// RUN: -Wgnu-zero-variadic-macro-arguments \
// RUN: -Wgnu-zero-line-directive
// RUN: %clang_cc1 -fsyntax-only -verify %s -DNONE -Wgnu \
// RUN: -Wno-gnu-zero-variadic-macro-arguments \
// RUN: -Wno-gnu-zero-line-directive
// Additional disabled tests:
// %clang_cc1 -fsyntax-only -verify %s -DZEROARGS -Wgnu-zero-variadic-macro-arguments
// %clang_cc1 -fsyntax-only -verify %s -DLINE0 -Wgnu-zero-line-directive
#if NONE
// expected-no-diagnostics
#endif
#if ALL || ZEROARGS
// expected-warning@+9 {{passing no argument for the '...' parameter of a variadic macro is a C23 extension}}
// expected-note@+4 {{macro 'efoo' defined here}}
// expected-warning@+3 {{token pasting of ',' and '__VA_ARGS__' is a GNU extension}}
#endif
#define efoo(format, args...) foo(format , ##args)
void foo( const char* c )
{
efoo("6");
}
// This case is handled differently because lit has a bug whereby #line 0 is reported to be on line 4294967295
// http://llvm.org/bugs/show_bug.cgi?id=16952
#if ALL || LINE0
#line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
#else
#line 0
#endif
// WARNING: Do not add more tests after the #line 0 line! Add them before the LINE0 test