https://bugs.llvm.org/show_bug.cgi?id=39642
Bug ID: 39642
Summary: Definition of destructor of vector not generated
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: hiradi...@msn.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
$ cat test.cpp
#include <memory>
#include <vector>
struct CtorMayThrow {
CtorMayThrow();
~CtorMayThrow();
};
struct IHaveVector {
std::vector<CtorMayThrow> v;
CtorMayThrow o;
};
IHaveVector f() {
return {
.v = {
{},
{},
},
.o = {},
};
}
$ clang++ -S -Oz -o - | grep
'__ZNSt3__16vectorI12CtorMayThrowNS_9allocatorIS1_EEED1Ev'
callq __ZNSt3__16vectorI12CtorMayThrowNS_9allocatorIS1_EEED1Ev
There is a call to "std::__1::vector<CtorMayThrow,
std::__1::allocator<CtorMayThrow> >::~vector()" but no definition. However
there is a definition of the destructor of vector_base
$ grep vector_base test.emptydestr.s
callq
__ZNSt3__113__vector_baseI12CtorMayThrowNS_9allocatorIS1_EEED2Ev
callq __ZNKSt3__120__vector_base_commonILb1EE20__throw_length_errorEv
.globl
__ZNSt3__113__vector_baseI12CtorMayThrowNS_9allocatorIS1_EEED2Ev
.weak_def_can_be_hidden
__ZNSt3__113__vector_baseI12CtorMayThrowNS_9allocatorIS1_EEED2Ev
__ZNSt3__113__vector_baseI12CtorMayThrowNS_9allocatorIS1_EEED2Ev:
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