[Bug tree-optimization/66828] [5/6 Regression] gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int'

[thopre01 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66828

--- Comment #4 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> ---
Indeed, I always forget. But as it goes, the excerpt you quote from C++
standard is exactly the same as in C99 so that doesn't invalidate the remaining
of my analysis.

The testing for the new patch is almost finished running so I'll soon post
something up for review.