Each floating point constant is placed in a unique variable such that the linker will merge floating point constants which have the same value. (The variable names are not legal C/C++ and are not accessible by the user). This option works with either small data in TOC on or off. This option minimizes TOC entry usage for programs which frequently use the same floating point constant in many different source files.
#pragma merge_float_consts on|off
The default for this pragma is off for Freescale Power Architecture processors.