2 Commits
Author SHA1 Message Date
adrien d53f92482d feat: switch from C to LLVM IR code generation
- Replace all C code generation with LLVM IR (flat DFA model with
  bb_ prefix labels to avoid SSA value name collisions)
- Remove c.min.js, add llvm.min.js highlight.js language definition
- Update shell.nix: gcc -> clang, remove sdl3/mesa deps
- Download LLVM Language Reference to docs/llvm/LangRef.html
- Rename #c-code to #ir-code in HTML, JS, and CSS
- Replace _generateIncludes with _generateLLVMDecls for extern
  function declarations using LLVM_DECL_MAP
- Add string pool (CodeGen.allocString, stringGlobal, llvmStringArg)
  for LLVM IR global string constants with getelementptr references
2026-06-23 03:39:22 +02:00
adrien 35959784de refactor: flat DFA code generation — every block is a label, every edge is a goto
Replace the nested if-else branch-analysis architecture with a flat DFA
model using CodeGen.emitFlat — a single DFS walk emitting each block as
a C label followed by its code and gotos to all successors.

Removed:
- _branchDescendants / emitBranch / generateCallWithError
- _generateCallWithError, _noWalkNext, _genVisited
- generateNextCode, findBackEdges
- WCDecision._branchDescendants / _emitBranch / overridden generateCode

Added:
- CodeGen.emitFlat(entry) — flat DFS emit with labels + gotos
- WCBlock.generateFlowCode() — base emits gotos from wcNextFlow
- WCDecision.generateFlowCode() — if-goto / goto for decisions
- WCProcCall.generateFlowCode() — if (call != 0) goto err / goto ok

Output is flat — zero nested if-else for branch/error handling.
Tests use local out/ directory.
2026-06-23 03:21:22 +02:00