gcc-12 (12.1.0-2) unstable; urgency=medium
* Update to git
20210513 from the gcc-12 branch.
- Fix PR ipa/100413, PR tree-optimization/105528, PR target/105292 (SPARC),
PR c++/105476, PR libstdc++/105284, PR libstdc++/105284,
PR libstdc++/104731.
* Refresh the cross-fixes patch.
* Update NEWS files for GCC 12.1.
[dgit import unpatched gcc-12 12.1.0-2]