IELCGBB

IELCGBB is a compiler-generated subroutine that tests for '1' bits. Compiler- generated subroutines are used by the compiler to carry out certain functions. They have the advantage over library modules because they can be tailored for the most common case. The compiler-generated subroutines are held in separate control sections and are printed at the head of the object-program listing when they are used in a program.

Reference Sources

OS PL/I Optimizing Compiler: Execution Logic, SC33-0025.