For
struct {} a[4]; int main() { return a[2] - a[1]; }
the C frontend emits
return 0 /[ex] 0;
which will, at -O0 fault at runtime, at -O not due to RTL CSE.
Is this even well-defined? Should the C-frontend rather emit
return 0;
? Of course this contradicts the C standard, but that does
rguenth at gcc dot gnu dot org [EMAIL PROTECTED] writes:
| For
|
| struct {} a[4]; int main() { return a[2] - a[1]; }
|
| the C frontend emits
|
| return 0 /[ex] 0;
|
| which will, at -O0 fault at runtime, at -O not due to RTL CSE.
|
| Is this even well-defined?
No, as you noted below.
|
