https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101236
Bug ID: 101236
Summary: [12 Regression] bits/unique_ptr.h:658:48: error:
invalid use of incomplete type ‘class llvm::APFloat’
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: jwakely at redhat dot com
Target Milestone: ---
Created attachment 51068
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51068&action=edit
test-case
Happens when one builds something that uses libLLVM:
$ g++ AggregateToScalar.ii -c
In file included from /home/marxin/bin/gcc2/include/c++/12.0.0/memory:76,
from /usr/include/llvm/ADT/SmallVector.h:30,
from /usr/include/llvm/ADT/ArrayRef.h:14,
from /usr/include/llvm/ADT/DenseMapInfo.h:18,
from /usr/include/llvm/ADT/DenseMap.h:16,
from
/home/marxin/Programming/cvise/clang_delta/AggregateToScalar.h:16,
from
/home/marxin/Programming/cvise/clang_delta/AggregateToScalar.cpp:15:
/home/marxin/bin/gcc2/include/c++/12.0.0/bits/unique_ptr.h: In instantiation of
‘typename std::add_lvalue_reference<_Tp>::type std::unique_ptr<_Tp [],
_Dp>::operator[](std::size_t) const [with _Tp = llvm::APFloat; _Dp =
std::default_delete<llvm::APFloat []>; typename
std::add_lvalue_reference<_Tp>::type = llvm::APFloat&; std::size_t = long
unsigned int]’:
/usr/include/llvm/ADT/APFloat.h:634:40: required from here
/home/marxin/bin/gcc2/include/c++/12.0.0/bits/unique_ptr.h:658:48: error:
invalid use of incomplete type ‘class llvm::APFloat’
658 |
noexcept(noexcept(std::declval<pointer>()[std::declval<size_t&>()]))
| ~~~~~~~~~~~~~~~~~~~~~~~^
In file included from /usr/include/clang/AST/APValue.h:17,
from /usr/include/clang/AST/Decl.h:16,
from /usr/include/clang/AST/Attr.h:18,
from /usr/include/clang/AST/RecursiveASTVisitor.h:16,
from
/home/marxin/Programming/cvise/clang_delta/AggregateToScalar.cpp:19:
/usr/include/llvm/ADT/APFixedPoint.h:25:7: note: forward declaration of ‘class
llvm::APFloat’
25 | class APFloat;
| ^~~~~~~
