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* c: case/default labels only create new blocks when necessarylemon2025-12-131-7/+11
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* fix position independent loads of function symbols.lemon2025-12-131-3/+3
| | | | | | | | 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.
* c: switch stmt diagnosticslemon2025-12-121-8/+49
| | | | For duplicate cases, case value overflow
* rename arraylength macro -> countoflemon2025-12-111-23/+23
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* c: accept C99 `[static N]` style array decls, changes to fn qualslemon2025-12-111-24/+45
| | | | | | Function parameters qualifiers don't matter outside of function definition. `int (const int)` should be compatible with `int(int)` etc. So no need to store them in the typedata.
* _Alignof and stufflemon2025-12-111-11/+18
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* c: use a look-up table for isdecltok()lemon2025-12-111-14/+18
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* c: optimize environment decl lookuplemon2025-12-111-6/+26
| | | | | Use a hashmap for the toplevel, optimizing for the common use case where the file-scope has many more declarations than local scopes do
* c: disallow mismatched nested extern decl, & more diagnosticslemon2025-12-111-17/+24
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* c: support for noreturn, and decl parsing cleanuplemon2025-12-111-107/+113
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* c: expr2reloc() change sig to return addendlemon2025-12-111-15/+12
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* c: fix static relocation for &sym[offset]lemon2025-12-101-7/+6
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* c: fix compound assignment type conversions when types don't matchlemon2025-12-101-2/+3
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* c: fix some static initialzierslemon2025-12-081-1/+3
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* c: fix more declaration parsing bugslemon2025-12-081-7/+17
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* c: allow redeclaration with K&R and non K&R prototypeslemon2025-12-031-2/+10
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* c: make tentative definitions worklemon2025-12-021-17/+34
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* c: narrowing ints of different signedness...lemon2025-12-011-1/+1
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* c: edgecase for redeclaration of implicit sized arraylemon2025-12-011-1/+1
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* c: fix some decl bugs and diagnosticslemon2025-11-301-18/+34
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* c/type: make implicit const T* -> T* conversion warning, not errorlemon2025-11-261-1/+8
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* c: more static initializer fixeslemon2025-11-261-7/+7
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* c: fix elided-braces initializers for nested unionslemon2025-11-261-5/+16
| | | | | | | | For example in ```c struct {int a; union { int b,c; }; int d; } X = {1,2,3}; ``` Fields `a`,`b`,`d` must get initialized to 1,2,3. Not `c`
* c: fix condexprvaluelemon2025-11-241-54/+42
| | | | | The original implementation was broken when presented with nested short-circuiting logical operators.
* c: remove unused functionlemon2025-11-241-8/+0
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* c: create dummy unreachable block after traplemon2025-11-241-5/+1
| | | | | | Reverts 9abe27f6712. This simplies expr codegen, otherwise would manually have to check `fn->curblk != NULL` repeatedly. Later passes will easily delete those unreachable blocks
* ir: implement cvtu64f. and other bug fixeslemon2025-11-231-1/+4
| | | | | compiler is bootstrapping?! however, stage1 and stage2+ executables aren't bit-identical.. small differences in the codegen.. need to look into that
* c: check actual reachability for non-void func may not return valuelemon2025-11-231-2/+6
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* c: implement compound initializer in static contextlemon2025-11-231-2/+18
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* c: fix runtime implicit-length array initializerlemon2025-11-231-2/+3
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* implement float varargs, and some other fixeslemon2025-11-231-0/+3
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* c: fix precedence of conditional expression rhslemon2025-11-221-2/+2
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* c: make the warning for '()' function declarations less strictlemon2025-11-221-1/+1
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* c: fix static eval for address of some array refslemon2025-11-221-1/+3
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* c: add decl.sym; avoid calling mkhiddensym repeatedlylemon2025-11-221-22/+16
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* c: move warning for extension keyword til after preprocessorlemon2025-11-221-2/+9
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* c: cast should narrow for narrow intslemon2025-11-221-2/+3
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* amd64/emit: fix REX-requiring 8-bit GPR encoding checking wrong reglemon2025-11-221-0/+2
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* remove umullemon2025-11-211-2/+2
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* change op names to match 285063eba44lemon2025-11-211-20/+20
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* rename IR classes to reflect bitsizelemon2025-11-211-16/+16
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* c: fix conditional expr not converting operands to final typelemon2025-11-211-9/+13
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* isel: lower allocas a different way, such that stk address gets materialized ↵lemon2025-11-201-1/+1
| | | | when necesary
* ir: for easier debugging, keep ctype in dats, print as literal when possiblelemon2025-11-201-1/+1
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* c: implement ++/-- for bitfieldslemon2025-11-191-7/+21
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* c: remove vestigial ins variablelemon2025-11-191-93/+88
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* debug output to stdoutlemon2025-11-191-2/+2
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* c: due to __builtin_trap (in the future also things like noreturn function ↵lemon2025-11-151-1/+5
| | | | calls), compileexpr() can terminate current block. add checks for that in callexpr. more are probably needed..
* c: disallow void argumentslemon2025-11-151-1/+3
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* ir: 'trap' jump; c: __builtin_trap; lex: __has_builtinlemon2025-11-151-2/+4
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