.. Copyright 1988-2022 Free Software Foundation, Inc. This is part of the GCC manual. For copying conditions, see the copyright.rst file. GNU Compiler Collection (GCC) Internals ======================================= .. only:: html Contents: .. toctree:: copyright introduction contributing-to-gcc-development gcc-and-portability interfacing-to-gcc-output the-gcc-low-level-runtime-library language-front-ends-in-gcc source-tree-structure-and-build-system testsuites option-specification-files passes-and-files-of-the-compiler sizes-and-offsets-as-runtime-invariants generic gimple analysis-and-optimization-of-gimple-tuples rtl-representation control-flow-graph analysis-and-representation-of-loops machine-descriptions target-macros host-configuration makefile-fragments collect2 standard-header-file-directories memory-management-and-type-information plugins link-time-optimization match-and-simplify static-analyzer user-experience-guidelines funding contributors-to-gcc general-public-license-3 gnu-free-documentation-license indices-and-tables