-xalias_level in C and C++
By Darryl Gove-Oracle on Jan 24, 2008
The compiler flag -xalias_level takes various options, and specifies the amount of aliasing that the compiler should assume. For example -xalias_level=any (the default at optimisation levels below -fast) means that the compiler should assume that any pointers may alias (ie point to the same location in memory).
In Sun Studio the available levels have different names for C and C++. adopted the C levels for both C and C++. The following table shows the mapping between the C and C++ names: