https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91172
--- Comment #2 from Ian Lance Taylor <ian at airs dot com> --- That is the function (*Package).gccDebug, which on GCC 7 branch starts on line 1262 of libgo/go/cmd/cgo/gcc.go. Like Richard I don't understand how you could get that warning. -Wreturn-type is a C frontend warning, and it shouldn't be enabled when using the Go frontend. However, the warning is enabled, it appears that it is being triggered because the analysis doesn't understand that the panic function does not return. In the middle-end the Go panic function will appear as the function "runtime.gopanic". On trunk the Go frontend will tell the middle-end that that function does not return. It looks like that is true as of GCC 8 branch, but is not true on GCC 7 branch. But since the warning shouldn't be enabled when using the Go frontend, it shouldn't matter. So I don't understand what is going on.
