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* cpp: nicer handling of predefined macroslemon2025-12-291-40/+29
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* backend: start implementing aarch64lemon2025-12-281-0/+4
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* preprocessor make some errors just warningslemon2025-12-221-4/+6
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* c: Fix some dumb uses of initialized stufflemon2025-12-221-3/+7
| | | | | | Can't figure out what's wrong with the change to struct expr from 9721d6ba40 but it makes valgrind complain and causes miscompilation of the compiler itself..
* c: keyword aliaseslemon2025-12-211-4/+17
| | | | | Some linux headers use __signed__ for whatever reason.. this is a general fix for those alternate keyword
* lexer: more small optimizationslemon2025-12-211-14/+33
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* lexer: note source of #include when error occurs in #included filelemon2025-12-201-0/+6
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* c: support CRLF newlineslemon2025-12-201-3/+11
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* lexer: fix remnant use of TKEOF for characterlemon2025-12-201-9/+7
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* optimize lexer a bit morelemon2025-12-201-60/+86
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* lexer: convert pp-idents to keywords only after preprocessinglemon2025-12-201-63/+65
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* cpp: GNU extension for named variadic argumentslemon2025-12-181-4/+7
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* cpp: better error recovery for #define syntax errorlemon2025-12-181-6/+7
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* nicer defaults and facilities for cross-compilationlemon2025-12-171-2/+16
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* create distinct interned string typelemon2025-12-151-22/+21
| | | | | | | | | | | | | | Interned strings are used pervasively, so it's a good idea to add a layer of type safety to differentiate them from general cstrs and avoid potential bugs from comparing non-interned and interned strings. Not that that's happened so far that I can remember, but it could. I'm 90% sure it's legal to alias `struct {char c;}` pointers with `char` pointers. This specific typedef gives type safety but with a simple one-way `internstr -> const char *` typecast (with `&istr->c`). Converting the other way around is more intentional: a straight up cast `(internstr)cstr` which sticks out as unchecked and probably wrong, or calling the intern(cstr) function, which is the right way.
* move intern() to mem.clemon2025-12-151-45/+0
| | | | | Being in lex.c was vestigial, since it was being used all over the frontend and backend.
* lex: loop with goto instead of tail recursionlemon2025-12-151-7/+8
| | | | | This uncovered a edgecase with loops and lifetime construction in regalloc!
* lexer: use a hashmap to lookup keywordslemon2025-12-151-27/+27
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* cpp: support #line directiveslemon2025-12-141-10/+75
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* cpp: correctly handle extra tokens after directiveslemon2025-12-141-16/+21
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* s/amd64/x86_64/lemon2025-12-121-1/+1
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* lex: use pmap for macro lookuplemon2025-12-121-125/+69
| | | | To reduce hashmap code repetition. Also add pmap_del for this purpose
* rename arraylength macro -> countoflemon2025-12-111-20/+20
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* -trigraphs optionlemon2025-12-111-3/+3
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* lex/expr(): cleanuplemon2025-12-111-29/+29
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* lexer: properly add padding for cpppredefslemon2025-12-101-2/+2
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* lex: make some hashtables resizablelemon2025-12-091-29/+67
| | | | Was hiting the fixed limits trying to preprocess sqlite3amalgamation
* add command-line predefined macros (-D, -U)lemon2025-12-061-4/+52
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* cpp: implement preprocessor expressions short circuiting behaviourlemon2025-12-031-17/+23
| | | | This only affects whether an error is given for something like `0 && 0/0` (it shouldn't)
* preprocessor: add #ifndef...#endif include guard optimizationlemon2025-12-021-11/+27
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* lex: remove some hacks and optimize preprocessorlemon2025-11-281-39/+34
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* pp: fix token pasting (hopefully)lemon2025-11-241-27/+15
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* lex: TEMP hack: #define __x86_64__ or some system headers break subtlylemon2025-11-231-0/+1
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* cpp: fix bugs with recursive macro expansion (hopefully)lemon2025-11-231-28/+24
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* cpp: fix ## buglemon2025-11-231-1/+1
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* c: move warning for extension keyword til after preprocessorlemon2025-11-221-2/+2
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* lex: #include ".." should also look in working directorylemon2025-11-221-19/+17
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* lex: move token data from tmp to glob arena when used in a macro bodylemon2025-11-221-2/+7
| | | | | | maybe introduce per-macro arenas to tie their lifetimes to that. but most macros have global lifetime (i.e. aren't #undef'd) so there probably wouldn't be much benefit to that
* cpp: add predefined __antcc__ macro, for debugginglemon2025-11-201-0/+1
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* ir: 'trap' jump; c: __builtin_trap; lex: __has_builtinlemon2025-11-151-4/+25
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* lex: fix single-line comment eating up preprocessor directive in next linelemon2025-11-081-1/+1
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* lex: #warning and #errorlemon2025-11-081-2/+13
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* lex: fix bugs filling char bufferlemon2025-10-271-14/+22
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* lex enlarge internhtlemon2025-10-231-1/+1
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* lex: fix expansion for fn like macros passed as macro argumentslemon2025-10-231-1/+1
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* lex: fix consecutive preprocessor concatenationlemon2025-10-231-7/+10
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* use libc's stdout/stderr; also eliminate some unnecessary recursion in bfmtlemon2025-10-231-1/+1
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* lex: fix base-16 literals adding an extra zero when there's a type suffixlemon2025-10-231-4/+3
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* lex: handle all the whitespace characterslemon2025-10-211-1/+1
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* refactor vec_of(T) and misclemon2025-10-201-7/+14
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