https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87515
ipelupes <ipelupes at hotmail dot com> changed:
What |Removed |Added
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CC| |ipelupes at hotmail dot com
--- Comment #4 from ipelupes <ipelupes at hotmail dot com> ---
I think the warning is not enough, because the resulting behaviour is quite
hard to debug, affecting the program flow, eg the following:
include <stdio.h>
int f()
{
}
int main()
{
printf("calling returnless nonvoid\n");
f();
return 0;
}
compiled with g++ -O2 test.C
prints out "calling returnless nonvoid" for a few thousand times before seg
faulting on my machine (gcc 9.3.1). I would not be helped by the warning in
tracking this down in a large project (often lots of warnings are present).
also: adding __builtin_unreachable(); hides the warning making it even harder
to find
