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* c/c.c: cleanup exprparse a littlelemon2025-12-221-13/+12
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* c: Fix some dumb uses of initialized stufflemon2025-12-222-10/+12
| | | | | | 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..
* simpl: optimize unsigned & signed division by power of 2lemon2025-12-213-19/+66
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* ir: simpl: optimize some constant multiplicationslemon2025-12-212-18/+61
| | | | Reuse irbinop() and irunop() for the constant results cases.
* c: keyword aliaseslemon2025-12-214-67/+82
| | | | | Some linux headers use __signed__ for whatever reason.. this is a general fix for those alternate keyword
* c: allow `return voidfn()` extensionlemon2025-12-211-4/+30
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* lexer: more small optimizationslemon2025-12-211-14/+33
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* rega: fix 3ff0bfcblemon2025-12-211-4/+1
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* lexer: note source of #include when error occurs in #included filelemon2025-12-202-1/+8
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* isel: fix returning fixarg()'d templemon2025-12-201-4/+4
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* c: small typechecking bugfixeslemon2025-12-201-3/+3
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* driver: -fsyntax-onlylemon2025-12-202-8/+12
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* rega: fix infinite loop when compiling infinite looplemon2025-12-202-1/+9
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* some static assertions for packed type sizeslemon2025-12-203-6/+11
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* backend: unify pass memory allocation strategieslemon2025-12-2010-39/+24
| | | | | | 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.
* bootstrap.sh optionslemon2025-12-201-7/+8
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* backend: general simplification pass skeletonlemon2025-12-204-2/+155
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* c: support CRLF newlineslemon2025-12-201-3/+11
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* c: fix a silly C edge case with function redeclaration storage classlemon2025-12-201-14/+21
| | | | | | C (or at least clang and gcc) allows declaring `static int f(...);` and defining it later as `int f(...) {...}`, omitting the 'static' in the latter definition.
* copyopt: optimize same-arg phis with multiple predslemon2025-12-201-2/+6
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* lexer: fix remnant use of TKEOF for characterlemon2025-12-201-9/+7
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* quit after emitting too many errorslemon2025-12-201-0/+5
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* optimize lexer a bit morelemon2025-12-204-68/+100
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* lexer: convert pp-idents to keywords only after preprocessinglemon2025-12-202-71/+75
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* ir/regalloc: struct alloc -> union alloclemon2025-12-201-16/+15
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* c: factor out to tldecl(), improve error recovery,lemon2025-12-201-73/+97
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* emit: fix errata in flagslivep()lemon2025-12-201-1/+1
| | | | This little typo inhibited a small optimization. Oops
* test/run.sh: shellchecklemon2025-12-201-11/+10
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* x86-64: peephole optimization for 3-address shift -> lealemon2025-12-202-1/+15
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* c.h init zero bitset portabilitylemon2025-12-191-1/+1
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* driver: -w, update helplemon2025-12-193-2/+9
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* c: support 0-length arrays as syntax for flexible array memberslemon2025-12-191-19/+29
| | | | | Keeping the expr around in the decllist paves the way for VLA support later on
* ir: move some filluses() to ir.c, rename optmem.c -> mem2reg.clemon2025-12-195-31/+30
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* c: fix incr/decr codegen for floatslemon2025-12-191-2/+2
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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
* c: hack to support __FUNCTION__ GNU extensionlemon2025-12-191-4/+10
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* cpp: GNU extension for named variadic argumentslemon2025-12-182-4/+11
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* cpp: better error recovery for #define syntax errorlemon2025-12-181-6/+7
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* x86-64 abi: fix wrong class being used in float vararglemon2025-12-181-1/+1
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* ir: move cls2load to interfacelemon2025-12-183-7/+7
| | | | | There's plenty of code duplication like this around I'm looking to reduce.
* x86-64/emit: remove some superfluous rex.W prefixeslemon2025-12-181-2/+2
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* regalloc+emit: get rid of xsave/xrestore hacklemon2025-12-184-58/+64
| | | | | | | Was used for situation where we needed to spill more than 1 temporary and have to use a register that is already used. Instead of push/pop, we can just allocate and set aside specific stack slots for this purpose. Also, reworked linearscan() interval sets to separate FPR/GPR intervals.
* rega: implement stack<->stack swap for parallel moveslemon2025-12-181-29/+34
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* x86_64: for vararg calls, write to EAX in isellemon2025-12-183-22/+30
| | | | Also, in regalloc ensure fixed intervals are sorted
* c: fix uninitiliazed field in decltypeslemon2025-12-171-0/+1
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* nicer defaults and facilities for cross-compilationlemon2025-12-177-32/+195
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* emit: don't put the exit block always at the end of the functionlemon2025-12-171-1/+6
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* x86-64/emit: implement single-exit-point ret with jump threadinglemon2025-12-163-26/+40
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* bitset: better implementation of bsiter() and stufflemon2025-12-163-11/+17
| | | | Also changed the type to size_t for portability
* mem2reg: fix obvious inefficiencylemon2025-12-161-16/+10
| | | | | | | deltrivialphis() was iterating over every variably instead of just looking at the variable being examined. And I'd been wondering why mem2reg was such a bottleneck for a testcase like sqlite3 amalgamation.. it's easy to miss the forest for the trees.
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