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> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of Arnold Schwaighofer > Subject: [LLVMdev] inttoptr and basicaa > BasicAA treats it conservatively if used on its own. It will return mayalias > for the two pointers. > TBAA operates based on the guarantee that pointers to different types cannot > alias (think C's strict

BasicAA treats it conservatively if used on its own. It will return mayalias for the two pointers. TBAA operates based on the guarantee that pointers to different types cannot alias (think C's strict aliasing rules). Therein lies its power but also its danger, that is, nothing prevents the programmer to write code that violates these rules (That's why we have -fno-strict-aliasing). So