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| author | Jordan Rose <jordan_rose@apple.com> | 2012-06-06 17:25:21 +0000 |
|---|---|---|
| committer | Jordan Rose <jordan_rose@apple.com> | 2012-06-06 17:25:21 +0000 |
| commit | ccf43ca05cb1540f3d95a73b7b329bf926808c7b (patch) | |
| tree | f1c81126e272ce660655dd437fa5dbf9d058f303 /clang/test/Misc/warning-flags.c | |
| parent | faa389462835ab40ed8af86eb32c44abfcf4e48a (diff) | |
| download | llvm-ccf43ca05cb1540f3d95a73b7b329bf926808c7b.zip llvm-ccf43ca05cb1540f3d95a73b7b329bf926808c7b.tar.gz llvm-ccf43ca05cb1540f3d95a73b7b329bf926808c7b.tar.bz2 | |
Add pedantic warning -Wempty-translation-unit (C11 6.9p1).
In standard C since C89, a 'translation-unit' is syntactically defined to have
at least one "external-declaration", which is either a decl or a function
definition. In Clang the latter gives us a declaration as well.
The tricky bit about this warning is that our predefines can contain external
declarations (__builtin_va_list and the 128-bit integer types). Therefore our
AST parser now makes sure we have at least one declaration that doesn't come
from the predefines buffer.
Also, remove bogus warning about empty source files. This doesn't catch source
files that only contain comments, and never fired anyway because of our
predefines.
PR12665 and <rdar://problem/9165548>
llvm-svn: 158085
Diffstat (limited to 'clang/test/Misc/warning-flags.c')
| -rw-r--r-- | clang/test/Misc/warning-flags.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/clang/test/Misc/warning-flags.c b/clang/test/Misc/warning-flags.c index 98130c5..cdfb38f 100644 --- a/clang/test/Misc/warning-flags.c +++ b/clang/test/Misc/warning-flags.c @@ -17,7 +17,7 @@ This test serves two purposes: The list of warnings below should NEVER grow. It should gradually shrink to 0. -CHECK: Warnings without flags (242): +CHECK: Warnings without flags (241): CHECK-NEXT: ext_anonymous_struct_union_qualified CHECK-NEXT: ext_binary_literal CHECK-NEXT: ext_cast_fn_obj @@ -26,7 +26,6 @@ CHECK-NEXT: ext_designated_init CHECK-NEXT: ext_duplicate_declspec CHECK-NEXT: ext_ellipsis_exception_spec CHECK-NEXT: ext_empty_fnmacro_arg -CHECK-NEXT: ext_empty_source_file CHECK-NEXT: ext_enum_friend CHECK-NEXT: ext_enum_value_not_int CHECK-NEXT: ext_enumerator_list_comma |