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* Check un-init not-null constructor fieldsCliff Click2026-09-281-1/+5
| | | | | | | | 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.
* Remove -disablePeepholeCliff Click2026-09-279-100/+15
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* Extend and backport SubNode peephole (#254)Hsiang-Ying Fu2026-09-253-4/+50
| | | | | | | | | | | | | | | * 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 Click2026-09-252-2/+12
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* Keyboard shortcutsCliff Click2026-09-233-1/+13
| | | | | Fast forward/reverse, pick-a-frame. Shorter type names.
* int fallbacks for int opsCliff Click2026-09-226-15/+33
| | | | all chapters, a little sharper for int ops
* 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 Click2026-09-2226-354/+146
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* Unify GCM across chaptersCliff Click2026-09-207-73/+87
| | | | | | Remove the _anti field. Remove the isPinned() call. Add a copyEmpty call.
* Unify mixed-return checking and resultsCliff Click2026-09-198-17/+50
| | | | Unify dominator caching.
* Use isDead() instead of checking null inputsCliff Click2026-09-191-2/+2
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* debug printers no longer call self-optimizing accessorsCliff Click2026-09-193-5/+83
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* Handle double-negation preserving not-null knowledgeCliff Click2026-09-192-0/+47
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* Get makefiles and fuzzer testing uniform across chaptersCliff Click2026-09-172-4/+33
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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>
* Backport renaming of `Type::_print()` in Chapter13 to earlier chapters (#244)Hsiang-Ying Fu2026-07-039-17/+17
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* Move `addUse()` return statement to `keep()` (#243)Hsiang-Ying Fu2026-07-031-6/+3
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* Cleanup (#162)RobertObkircher2025-02-163-7/+6
| | | | | | | | | * remove unused method lazyFRef * remove unused method copyF(Node, Node) * make TypeMemPtr constants final * make ConstantNode value final
* Add testRedeclareVar in all later chapterstannal2025-01-191-0/+10
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* Test for "arg--2"Cliff Click2025-01-151-0/+6
| | | | Parse as "arg - -2" and not "arg-- 2" which is a syntax error
* New evaluator, more Compiler Driver cleanupCliff Click2025-01-151-1/+1
| | | | | | | | | | More compiler driver cleanup: Stop only has Return inputs, never an expr. Drop extra lexical scope. Linker table moves to CodeGen. Replace evaluator with a simpler design; I was unable to get the current design to work with the other changes. Updates to old eval; proper idoms; forced type checks; extensions for Fun, Return, Call, CallEnd. Accessor find next control to execute. Accessor for deciding when its ok to optimize a Function/Return, Call/CallEnd, Stop, ScopeMin (merge) Add local scheduling pass. IRPrinter uses SB instead of StringBuilder Spelling SubF comment
* Fix commentCliff Click2025-01-151-1/+1
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* Turn off all printing during test runsCliff Click2024-10-1211-139/+121
| | | | was making 10000 lines of ignored output
* remove peephole from ProjNode::idealize that is already handled by computeRobert Obkircher2024-09-161-10/+7
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* move x-x check up frontCliff Click2024-09-131-3/+4
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* x-x==0Cliff Click2024-09-132-5/+10
| | | | | | Move x-x==0 to compute. Add x/1 ==> x All chapters
* Fix GCM of CSE storesCliff Click2024-09-125-11/+24
| | | | | Stop CSE of stores. Backports to ch11,12,13,14
* Backport empty statement fixCliff Click2024-09-071-0/+1
| | | | | Split Ch13 tests from Chapter12Test.java Handle forward refs never defined.
* #98 Chapter 14 arraysdibyendumajumdar2024-09-071-0/+1
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* Update fuzzer for chapter 12. (#104)XmiliaH2024-08-182-37/+73
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* Unify type parsingCliff Click2024-08-051-48/+22
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* Fuzzer nit picksCliff Click2024-08-053-8/+4
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* auto-widen on assignCliff Click2024-08-052-125/+11
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* missing null checkCliff Click2024-08-052-2/+121
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* A series of minor fuzzer bugsCliff Click2024-08-055-27/+28
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* Better filter on Load cloneCliff Click2024-08-052-6/+20
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* Float bugsCliff Click2024-08-0520-42/+113
| | | | | | | | Fix bug infinite loop finding. Fix inf loops before printing graph. Missing float unary negate . Generator makes float exprs Fix missing dep in LCA finding
* Clean up floatsCliff Click2024-08-057-53/+48
| | | | Better pattern in the compiler.
* a little FP cleanupCliff Click2024-08-052-7/+6
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* more fp bugfixesCliff Click2024-08-054-6/+5
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* minor FP bugsCliff Click2024-08-056-17/+23
| | | | | Fix bug AddF+0, SubF+0 Fix bug flipping EQ sides.
* Add Float supportCliff Click2024-08-0513-47/+463
| | | | Parsing float constants; float +-*/, auto-widening float expressions.
* minimal empty test so "make" doesnt complainCliff Click2024-08-051-0/+11
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* #92 chapter 12 start from chapter 11dibyendumajumdar2024-08-0563-0/+10143
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