[Bug middle-end/77740] [7 regression] internal compiler error: in format_floating, at gimple-ssa-sprintf.c:1165

[gerald at pfeifer dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77740

--- Comment #1 from Gerald Pfeifer <gerald at pfeifer dot com> ---
The minimum invocation to reproduce the issue is

  /some/where/gcc -c math.i -Wall -O1

Both warnings _and_ at least -O1 are required.