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really fix 6473 by handling weakref in constant expressions.

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llvm-svn: 97750
This commit is contained in:
Rafael Espindola
2010-03-04 21:26:03 +00:00
parent 1abd1a9f4b
commit bef98689ad
2 changed files with 11 additions and 1 deletions
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4
clang/lib/CodeGen/CGExprConstant.cpp
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@@ -761,7 +761,9 @@ public:
return C;
}
case Expr::DeclRefExprClass: {
NamedDecl *Decl = cast<DeclRefExpr>(E)->getDecl();
ValueDecl *Decl = cast<DeclRefExpr>(E)->getDecl();
if (Decl->hasAttr<WeakRefAttr>())
return CGM.GetWeakRefReference(Decl);
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(Decl))
return CGM.GetAddrOfFunction(FD);
if (const VarDecl* VD = dyn_cast<VarDecl>(Decl)) {

8
clang/test/CodeGen/attr-weakref.c
View File

@@ -52,3 +52,11 @@ void test6_h(void) {
void test6_foo(void) {
test6_f();
}
// CHECK: declare extern_weak void @test7_f()
void test7_f(void);
static void test7_g(void) __attribute__((weakref("test7_f")));
static void *const test7_zed = (void *) &test7_g;
void* test7_h(void) {
return test7_zed;
}