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Sema: err_after_alias is unreachable, remove it 

Examples this would have catched are now handled by the attribute
verification code.

llvm-svn: 226626
This commit is contained in:
David Majnemer 2015-01-21 00:52:17 +00:00
parent 83887fb7dc
commit 1efd55ff21
3 changed files with 5 additions and 7 deletions
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2
clang/include/clang/Basic/DiagnosticSemaKinds.td
View File

@ -3902,8 +3902,6 @@ def warn_missing_variable_declarations : Warning<
def err_static_data_member_reinitialization :
Error<"static data member %0 already has an initializer">;
def err_redefinition : Error<"redefinition of %0">;
def err_alias_after_tentative :
Error<"alias definition of %0 after tentative definition">;
def err_alias_is_definition :
Error<"definition %0 cannot also be an alias">;
def err_definition_of_implicitly_declared_member : Error<

6
clang/lib/Sema/SemaDecl.cpp
View File

@ -2223,11 +2223,7 @@ static void checkNewAttributesAfterDef(Sema &S, Decl *New, const Decl *Old) {
S.CheckForFunctionRedefinition(FD, cast<FunctionDecl>(Def));
else {
VarDecl *VD = cast<VarDecl>(New);
unsigned Diag = cast<VarDecl>(Def)->isThisDeclarationADefinition() ==
VarDecl::TentativeDefinition
? diag::err_alias_after_tentative
: diag::err_redefinition;
S.Diag(VD->getLocation(), Diag) << VD->getDeclName();
S.Diag(VD->getLocation(), diag::err_redefinition) << VD->getDeclName();
S.Diag(Def->getLocation(), diag::note_previous_definition);
VD->setInvalidDecl();
}

4
clang/test/Sema/alias-redefinition.c
View File

@ -28,3 +28,7 @@ static int var2 __attribute((alias("v2"))) = 2; // expected-error {{definition '
extern int var3 __attribute__((alias("C"))); // expected-note{{previous definition is here}}
int var3 = 3; // expected-error{{redefinition of 'var3'}}
int v4;
int var4;
int var4 __attribute((alias("v4"))); // expected-error {{definition 'var4' cannot also be an alias}}