https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88936
--- Comment #2 from Sergei Trofimovich <slyfox at inbox dot ru> --- The sample output different result with -fipa-pta and without. $ gcc -O2 -Wall -fno-stack-protector main.c -o c-bug && ./c-bug ff(1) = 1 $ gcc -O2 -Wall -fno-stack-protector -fipa-pta main.c -o c-bug-ipa-pta && ./c-bug-ipa-pta ff(1) = 3
