The Production Quality Compiler-Compiler Project (PQCC) was a long-term project led by William Wulf at Carnegie Mellon University to produce an industrial-strength compiler-compiler. PQCC would produce full, optimizing programming languagecompilers from descriptions of the programming language and the target machine. Though the goal of a fully automatic process was not realized, PQCC technology and ideas were the basis of production compilers from Intermetrics, Tartan Laboratories, and others.[1][2][3]
^Benjamin M. Brosgol, "TCOLAda and the “Middle End” of the PQCC Ada compiler", Proceedings of the ACM-SIGPLAN symposium on The ADA programming language (1980). ISBN0-89791-030-3. Documents part of an industrial compiler using PQCC technology.