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Don't warn about undefined inline functions if they're dllexport/import 

llvm-svn: 209471
This commit is contained in:
Hans Wennborg 2014-05-22 20:45:53 +00:00
parent e1f62eca2d
commit 5ebffb5555
2 changed files with 14 additions and 1 deletions
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7
clang/lib/Sema/Sema.cpp
View File

@ -478,6 +478,13 @@ static void checkUndefinedButUsed(Sema &S) {
I = Undefined.begin(), E = Undefined.end(); I != E; ++I) {
NamedDecl *ND = I->first;
if (ND->hasAttr<DLLImportAttr>() || ND->hasAttr<DLLExportAttr>()) {
// An exported function will always be emitted when defined, so even if
// the function is inline, it doesn't have to be emitted in this TU. An
// imported function implies that it has been exported somewhere else.
continue;
}
if (!ND->isExternallyVisible()) {
S.Diag(ND->getLocation(), diag::warn_undefined_internal)
<< isa<VarDecl>(ND) << ND;

8
clang/test/SemaCXX/undefined-inline.cpp
View File

@ -1,4 +1,4 @@
// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -triple i686-pc-win32 -verify %s
// PR14993
namespace test1 {
@ -55,3 +55,9 @@ namespace test10 {
void test() { foo(); }
inline void foo() __attribute__((gnu_inline));
}
namespace test11 {
inline void foo() __attribute__((dllexport));
inline void bar() __attribute__((dllimport));
void test() { foo(); bar(); }
}