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* Fix memory on Load splitting upCliff Click3 days1-2/+3
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* Cleanup & backportclinitCliff Click3 days17-296/+368
| | | | The phase rework, made new phases explicit and add them to the CodeGen driver. Fix the flag-spilling on X86 and ARM. Fix the GCM conservative anti-deps and backport.
* More test case vs RA cleanupCliff Click2026-10-076-7/+12
| | | | | Missing a few risc/arm encodings. Make private many tests, so they don't escape and the escaped fcn inflate x86 spill numbers
* Towrds getting RA spill counts comparableCliff Click2026-10-072-1/+111
| | | | Ignore JIGs. Get test suites more conical, so reg alloc spill counts are comparable
* flt->int conversionCliff Click2026-10-078-0/+92
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* RoundF32 actually roundsCliff Click2026-10-071-0/+1
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* Make RA deterministicCliff Click2026-10-071-4/+12
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* Small peep to drop simple store-updates out of loopsCliff Click2026-10-052-0/+45
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* Require matching types to use algebraic identiesCliff Click2026-10-059-9/+9
| | | | Fixes some bugs `flit x; return x ^ 0;` should give an error instead of returning the plain `x`
* Slides for 2026 REBASEreadmeCliff Click2026-10-041-3/+4
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* Chapter renumber, and split ch 17Cliff Click2026-10-0313-80/+152
| | | | | | Renumber chapters 10a, 10b, 11, 12, 13, 14 -> 10, 11, 13, 12, [11,14]. Split ch 17 into a 17a and 17b; shuffle around im/mutable syntax to be consistent, and present it more slowly. THe new immutable syntax is pushed through all later chapters
* Fix bug loop tree depth on inf loopsCliff Click2026-10-025-9/+29
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* Restore missing anti-dependence walkCliff Click2026-10-011-10/+15
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* Move much of the ISA support to shared codeCliff Click2026-10-01124-1350/+360
| | | | The ISA shared handlers here are required for a proper compiler, but contain only trivial bit-massaging operations.
* Move debug printing into shared spaceCliff Click2026-10-0152-967/+359
| | | | Same as the graph viewer, moves a lot of code out of all Nodes
* Finish forward-port mem ops thru ch25Cliff Click2026-09-3021-529/+748
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* Forward port mem stuff to ch21Cliff Click2026-09-301-2/+14
| | | | Also a minor reg-alloc improvement for BrainFuck, ported up to ch25
* Extend smaller-width C results to full widthCliff Click2026-09-287-1/+115
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* Backport FunPtrCliff Click2026-09-289-15/+44
| | | | | Helps keep functions alive via ptr only (no calls). A few RISC 5 TFP encoding fixes.
* Support extern C ver direct updatesCliff Click2026-09-281-3/+3
| | | | FIx minor RISC encodings.
* Check un-init not-null constructor fieldsCliff Click2026-09-283-3/+4
| | | | | | | | Propagate BOT inputs; Arith, Load. CallEnd inlining, the FUnPtr dies early. Load asserts when loading against uninit not-null field. Keep not-nill state for storage class. Clean up Node.peep as constant.
* bug fix widenCliff Click2026-09-266-69/+68
| | | | Failed lattice law tests mixing constants and have wide type ints; or mixing wide ints and constant arrays.
* Extend and backport SubNode peephole (#254)Hsiang-Ying Fu2026-09-251-4/+15
| | | | | | | | | | | | | | | * Extend and backport SubNode peephole * Add tests * Restrict subtraction zero peepholes to integer operands Require resolved integer mode in chapter 25 so zero subtraction preserves floating-point signed zero. Keep nonnumeric operands in the graph for subtraction diagnostics. Add signed-zero coverage from chapter 12 and null-subtraction diagnostics from chapter 22. Confirmed the regressions fail on the original PR. Full Make suites pass in chapters 4-25 (5462 tests), including fresh chapter 25 sys.o compilation. --------- Co-authored-by: Cliff Click <cliffc@acm.org>
* Bunch more animation workCliff Click2026-09-255-3/+20
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* Bunch better layout optionsCliff Click2026-09-241-1/+3
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* Keyboard shortcutsCliff Click2026-09-234-4/+20
| | | | | Fast forward/reverse, pick-a-frame. Shorter type names.
* Graph cleanupCliff Click2026-09-222-1/+3
| | | | Phis stay with regions, stop sinks to bottom,
* Tidy up scope displayCliff Click2026-09-221-1/+1
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* Add shared graph viewer to all chaptersCliff Click2026-09-2230-980/+130
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* move the graph visualizer into shared codeCliff Click2026-09-212-27/+87
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* Final reg-alloc across chapters cleanupCliff Click2026-09-205-18/+15
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* Split self-conflict phis once at a loop headCliff Click2026-09-202-6/+33
| | | | if this works, saves a copy-per-loop. If it fails, next round split as normal
* Popular use grouping for RegAllocCliff Click2026-09-204-55/+40
| | | | Fix arm BL encodings; ADD/SUB with reversed sign.
* Forward-port allocator bug fixes and test support through ch25Cliff Click2026-09-206-48/+59
| | | | Improved spilling
* Backport TypeFunPtr normalizationCliff Click2026-09-201-1/+18
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* Unify GCM across chaptersCliff Click2026-09-206-111/+89
| | | | | | Remove the _anti field. Remove the isPinned() call. Add a copyEmpty call.
* Unify mixed-return checking and resultsCliff Click2026-09-1910-47/+38
| | | | Unify dominator caching.
* Use isDead() instead of checking null inputsCliff Click2026-09-191-1/+1
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* debug printers no longer call self-optimizing accessorsCliff Click2026-09-1912-20/+59
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* Tighter recursive-struct testCliff Click2026-09-191-1/+1
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* Handle double-negation preserving not-null knowledgeCliff Click2026-09-191-2/+59
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* Backport string escapes and many op-assignCliff Click2026-09-171-11/+53
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* Parser fix OR tempsCliff Click2026-09-171-1/+1
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* Backport x86 Not encodingCliff Click2026-09-171-10/+7
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* x86 mul reg reg encoding fixCliff Click2026-09-171-1/+1
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* Back point cmpmem encodingCliff Click2026-09-171-1/+1
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* Fix stale copy-pasted comment on BoolNode's phiCon call (#249)Symious2026-09-091-3/+3
| | | | | | | | | | | | | | | | | | The three comment lines above `AddNode.phiCon(this, ...)` in BoolNode were copy-pasted from MulNode and never adapted: they use `*` as the operator and describe the rotated shape `(x * (phi cons)) * con`. For BoolNode neither is right. The operator is a compare, and in chapters 6-9 `rotate` is hard-coded `false`, so the rotated shape is never matched; the shapes actually handled are `(phi cons) cmp con` and `(phi cons) cmp (phi cons)`. Reword the comment accordingly, and in chapters 6-9 add a line noting why rotate is off. Chapters 10-25 pass `this instanceof EQ`, so no such claim is made there. Comment-only change; no code is touched. Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
* Move `addUse()` return statement to `keep()` (#243)Hsiang-Ying Fu2026-07-031-7/+4
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* minor typoesCliff Click2026-01-251-1/+1
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* Missing depCliff Click2025-10-111-1/+5
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