[llvm-dev] Compilation failure with on branch master in destroying_delete_t.pass.cpp

Chris Palmer via llvm-dev llvm-dev at lists.llvm.org
Mon Nov 4 14:01:03 PST 2019

Hi all,

I've been seeing this failure for a couple weeks. I assume I am doing
something wrong, but I can't tell what. :)

$ git pull --rebase
$ git checkout master
$ git diff origin/master
→ confirming no difference
$ cd build
$ ninja check-all
GNU C++17 (Debian 8.3.0-6) version 8.3.0 (x86_64-linux-gnu)
  compiled by GNU C version 8.3.0, GMP version 6.1.2, MPFR version
4.0.2-rc1, MPC version 1.1.0, isl version isl-0.20-GMP

warning: MPFR header version 4.0.2-rc1 differs from library version 4.0.2.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 5e2cda5349948e2d3e86e3d9186f42cf
error: ‘operator delete’ takes type ‘void*’ as first parameter
   void operator delete(A*, std::destroying_delete_t);
error: ‘operator delete’ takes type ‘void*’ as first parameter
 void A::operator delete(A* a, std::destroying_delete_t) {
In function ‘int main()’:
error: no suitable ‘operator delete’ for ‘A’
   delete ap;

I assume the problem is that I am using GNU C++17 to compile (as stated in
the message), and the feature requires C++20 (as stated at the top of

I tried setting my CXX environment variable to clang++, but that didn't
change the outcome. Following the docs <https://llvm.org/docs/CMake.html>,
I also tried that, plus:

$ cmake -G Ninja -DLLVM_CXX_STD=c++20 ../llvm
CMake Warning:
  Manually-specified variables were not used by the project:


So I'm sure I'm doing something wrong, but I don't know what else to try.
Any clues? Thanks. :)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20191104/3cad7e09/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 4843 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20191104/3cad7e09/attachment-0001.bin>

More information about the llvm-dev mailing list