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fix codegen support for alloc_size attribute for static C++ methods 

add test case for C++ codegen

llvm-svn: 157500
This commit is contained in:
Nuno Lopes 2012-05-25 21:45:08 +00:00
parent e9b0bdf804
commit f491fbd715
2 changed files with 22 additions and 2 deletions
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6
clang/lib/CodeGen/CGCall.cpp
View File

@ -2090,9 +2090,11 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
// add metadata for __attribute__((alloc_size(foo)))
if (TargetDecl) {
if (const AllocSizeAttr* Attr = TargetDecl->getAttr<AllocSizeAttr>()) {
std::vector<llvm::Value*> Args;
SmallVector<llvm::Value*, 4> Args;
llvm::IntegerType *Ty = llvm::IntegerType::getInt32Ty(getLLVMContext());
bool isMethod = isa<CXXMethodDecl>(TargetDecl);
bool isMethod = false;
if (const CXXMethodDecl *MDecl = dyn_cast<CXXMethodDecl>(TargetDecl))
isMethod = MDecl->isInstance();
for (AllocSizeAttr::args_iterator I = Attr->args_begin(),
E = Attr->args_end(); I != E; ++I) {

18
clang/test/CodeGenCXX/alloc_size.cpp Normal file
View File

@ -0,0 +1,18 @@
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
struct foo {
void *my_alloc(unsigned) __attribute__((alloc_size(2)));
static void* static_alloc(unsigned) __attribute__((alloc_size(1)));
};
void* f(bool a) {
// CHECK: call i8* {{.*}}alloc{{.*}}, !alloc_size !0
// CHECK: call i8* {{.*}}static_alloc{{.*}}, !alloc_size !1
foo obj;
return a ? obj.my_alloc(2) :
foo::static_alloc(42);
}
// CHECK: !0 = metadata !{i32 1}
// CHECK: !1 = metadata !{i32 0}