[Bug middle-end/108623] We need to grow the precision field in tree_type_common for PowerPC

[joseph at codesourcery dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108623

--- Comment #8 from joseph at codesourcery dot com <joseph at codesourcery dot 
com> ---
See also bug 102989 (C2x _BitInt) regarding another case for which growing 
TYPE_PRECISION would be useful.