https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033
--- Comment #5 from Rafael Avila de Espindola ---
The regression (at least with the reduced testcase I uploaded) is from:
commit 58487c21b6a47c3fff6c6958684de866216a5593 (HEAD)
Author: Jonathan Wakely
Date: Mon May 20 12:32:51 2019 +0100
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033
--- Comment #5 from Rafael Avila de Espindola ---
Created attachment 47994
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47994=edit
reduced testcase
I have reduced it a bit further.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033
--- Comment #4 from Avi Kivity ---
Type in build instructions, should be
g++ -std=gnu++17 -c database.cc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033
--- Comment #3 from Avi Kivity ---
Created attachment 47993
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47993=edit
reduced test case
Reduced test case, build with g++ -std=gnu++17 -c database
works on gcc 9.2.1, fails on gcc 10.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033
--- Comment #2 from Avi Kivity ---
It does not look similar to 93923. There, there is an incomplete type. In my
reproducer the type is complete but the default constructor is private.
Note that for simple cases is_trivially_constructible works
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033
--- Comment #1 from Jonathan Wakely ---
Probably another instance of PR 93983 and PR PR 93923.
