[Bug rtl-optimization/51353] GCC incorrectly optimizes away assignment to return address

[nkeynes at deadcoderemoval dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51353

--- Comment #2 from Nathan Keynes <nkeynes at deadcoderemoval dot net> 
2011-12-15 02:14:48 UTC ---
Testing this out, 

     *(((volatile void **)__builtin_frame_address(0))+1) = exc;

still does not work in 4.4.6 and 4.5.3, but

     *(((void * volatile *)__builtin_frame_address(0))+1) = exc;

does work correctly.