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* REFACTOR: move sources to src/lemon2026-03-171-652/+0
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* c: static eval refactoringlemon2026-03-141-8/+13
| | | | | Explicit node for static symbol (addresses). Should not break with edge cases like the previous ad-hoc approach. And some other bugfixes
* x86_64/isel: fix edge case with branch on float add resultlemon2026-03-111-1/+1
| | | | | | | | In `if (x + 1)` the implicit `!= 0` can be omitted for integers, because the x86 `add` instruction sets the zero flag accordingly. But for floats it doesn't, so applying that optimization there was wrong. Luckily it was caught by a nullptr dereference later in `emit::Xjcc()` for the (missing) unordered branch target, instead of miscompiling.
* fix some more cases of signed integer overflowlemon2026-03-081-1/+1
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* x86_64/isel: cleanup and fix edge caseslemon2026-03-081-79/+57
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* add bswap16/32/64lemon2026-03-021-0/+8
| | | | | - frontend: __builtin_bswapX intrinsics - backend: ObswapX instructions
* ir: make address ref hash table resizablelemon2026-02-281-2/+2
| | | | Would hit the limit on very large functions (thanks csmith).
* backend: fix edgecases where imm32 immediate overflowslemon2026-02-281-3/+9
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* fix various warningslemon2026-02-241-1/+0
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* x86_64/isel: fix regression with cmp instrs edge caselemon2026-02-241-1/+1
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* driver: recognize shared libraries; & backend: misc fixes for PIC isel edgecaseslemon2026-02-221-4/+6
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* IR: just use an array for extended constantslemon2026-02-191-4/+4
| | | | | The extra work of using a hashtable to intern them is probably unnecessary.
* ir: regalloc & x86-64 isel bugfixeslemon2026-02-181-4/+18
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* x86_64/isel: fix edgecase of fixarg from seljmp derefing nullpointerlemon2026-01-091-1/+1
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* backend: separate instrs for integer/float storelemon2025-12-311-2/+2
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* x86_64: optimize away some redundant zero extensionslemon2025-12-291-1/+9
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* x86_64/isel: aimm should take vlonglemon2025-12-291-1/+1
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* backend: start implementing aarch64lemon2025-12-281-14/+2
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* avoid GOT relocations in unnecessary instanceslemon2025-12-251-1/+1
| | | | | Also change xcon to have a flagset for symbols (whether it's a function, locally defined; later: thread local, etc).
* x86_64: fix isel for 7036e19lemon2025-12-241-1/+1
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* lower alloca as a separate pass before isellemon2025-12-231-27/+10
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* isel: fix returning fixarg()'d templemon2025-12-201-4/+4
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* backend: unify pass memory allocation strategieslemon2025-12-201-2/+1
| | | | | | It was all over the place for temporary data structures used by individual passes. Now there is an arena specifically for that, which is nicer.
* x86-64: peephole optimization for 3-address shift -> lealemon2025-12-201-0/+1
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* isel: fix wrong instr cls being used in some caseslemon2025-12-191-2/+2
| | | | Specifically comparisons where operation cls != result cls
* x86_64: for vararg calls, write to EAX in isellemon2025-12-181-4/+5
| | | | Also, in regalloc ensure fixed intervals are sorted
* fix position independent loads of function symbols.lemon2025-12-131-1/+1
| | | | | | | | For `extern int x[1];`, can use PCREL32 for &x. But for `extern int x(int)`, must use GOTREL, when not being called directly (that's PLT). Therefore the type of an external symbol (actually just whether it denotes a function) matters when deciding what kind of relocation to emit, so keep that information.
* s/amd64/x86_64/lemon2025-12-121-0/+660
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