[Bug c++/83756] gcc (mingw64) 7.2.0 ICE on boost::call_once

[jacobgodserv at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83756

--- Comment #5 from Jacob Godserv  ---
Created attachment 43081
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43081=edit
mingw-w64 7.2.0 TestClass.ii

This is the intermediate output from a 7.2.0 run.

[Bug c++/83756] gcc (mingw64) 7.2.0 ICE on boost::call_once

[jacobgodserv at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83756

--- Comment #4 from Jacob Godserv  ---
Created attachment 43080
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43080=edit
7.2.0 test case output

This is output from a 7.2.0 run. It produces the same crash.

[Bug c++/83756] gcc (mingw64) 7.2.0 ICE on boost::call_once

[jacobgodserv at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83756

--- Comment #3 from Jacob Godserv  ---
Created attachment 43078
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43078=edit
mingw-w64 5.4.0 TestClass.ii

I've attached gcc's intermediate output to make this even easier to reproduce.

Compile it like so:
x86_64-5.4.0-release-win32-seh-rt_v5-rev0/mingw64/bin/g++ -std=c++11
TestClass.ii

[Bug c++/83756] gcc (mingw64) 7.2.0 ICE on boost::call_once

[jacobgodserv at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83756

--- Comment #2 from Jacob Godserv  ---
Created attachment 43077
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43077=edit
Minimal test case

With:
x86_64-w64-mingw32-g++ -std=c++11 -I path/to/official/boost/1.57/includes/ -L
path/to/official/boost/1.57/64bit/libraries/ TestClass.cpp

I am able to reproduce the failure. See the attached file for the minimal test
case.

[Bug c++/83756] gcc (mingw64) 7.2.0 ICE on boost::call_once

[jacobgodserv at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83756

--- Comment #1 from Jacob Godserv  ---
Obviously you need a way to reproduce this bug. The original comment does not
include that information. I'm going to attach a minimal test case, instructions
on how to run it, and the .ii to make it even easier.