How dmohanty640/gcc works
GCC is a multi-language compiler collection: users provide source and compilation options, and language front ends translate programs into GCC’s intermediate representation for shared optimization and target-specific code generation. The repository also contains an optional static analyzer and several language-specific front ends and target back ends. The README identifies GCC and points to usage and porting manuals; the tree supports the component paths below, while sampled source is limited, so links for unsampled compiler stages reflect the documented compiler workflow rather than inspected call sites.
Main entry points: cfg.cc GIMPLE and CFG · gcc Optimization passes · engine.cc Analysis engine · config Target backend
Components 20
Language front ends
- C parser
gcc/c/c-parser.cc - C semantics
gcc/c/c-typeck.cc - Rust session
gcc/rust/rust-session-manager.cc - Ada front end
gcc/ada - Algol 68 front end
gcc/algol68 - COBOL front end
gcc/cobol - Modula-2 front end
gcc/m2
Compiler core
- GIMPLE and CFG
gcc/cfg.cc - Optimization passes
gcc - Compiler diagnostics
gcc/c-family
Program analysis
- Analyzer pass
gcc/analyzer/analyzer-pass.cc - Analysis engine
gcc/analyzer/engine.cc - Program state model
gcc/analyzer/region-model.cc
Target code generation
- Target backend
gcc/config - NDS32 scheduling
gcc/config/nds32/nds32-pipelines-auxiliary.cc
Other components
- Compiler user
- Source files
- Object code
- Linker
- Executable
Connections 25
- Compiler user → Source files: provides
- Source files → C parser: parses
- Source files → Rust session: parses
- Source files → Ada front end: parses
- Source files → Algol 68 front end: parses
- Source files → COBOL front end: parses
- Source files → Modula-2 front end: parses
- C parser → C semantics: checks
- C semantics → GIMPLE and CFG: lowers
- Rust session → GIMPLE and CFG: lowers
- Ada front end → GIMPLE and CFG: lowers
- Algol 68 front end → GIMPLE and CFG: lowers
- COBOL front end → GIMPLE and CFG: lowers
- Modula-2 front end → GIMPLE and CFG: lowers
- GIMPLE and CFG → Optimization passes: optimizes
- Optimization passes → Target backend: feeds
- Target backend → Object code: emits
- Target backend → NDS32 scheduling: uses scheduling
- Object code → Linker: links
- Linker → Executable: produces
- Compiler user → Analyzer pass: enables analysis
- Analyzer pass → Analysis engine: runs
- Analysis engine → Program state model: models states
- Analysis engine → Compiler diagnostics: reports
- Optimization passes → Compiler diagnostics: emits