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* Docs: Proj is not always a data node (#250)Symious2026-09-091-1/+5
| | | | | | | | | | | | | | | | | | | The node recap tables in chapters 4 and 5 classify `Proj` as "Data", but `ProjNode.isCFG()` has returned true for control projections since chapter 4: ch4: return _idx==0; ch5+: return _idx==0 || ctrl() instanceof IfNode; So `Proj#0` off `Start` is a control node, and from chapter 5 both projections off an `If` are too -- which is exactly why the dominator walk in `IfNode.compute()` can step through them. Change the Type column to "Data / Control" and add a note under each table pointing at `isCFG()`. Table alignment is unchanged: "Data / Control" is the same width as "Abstract class". Docs-only change. Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
* Ch19 (#155)Cliff Click2025-02-071-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Initial push Major CodeGen cleanup; most static globals move into the CodeGen object. * Minor progress bug with mutual recursion * Add test from pr#148 * First cut x86 "port" Only "return 0;", no registers, no encoding, but yah gotta start somewhere * Update README.md * Update README.md * Update ListScheduler.java * command line launcher for simple Parser bug fref in args Some new test cases. * Add basic RegMask for more than 64 bits of register mask. Add calling convention basics to X86; con+ret RegMasks. GCM computes CFG for all users. Drop unused MultiUse. Pick up reg-pressure aware ListScheduler. Re-layout CodeGen file to get code & data chunks nearer each other. minor Ary extension * ASM Printer InstSel handles folding 2+ ideal ops into 1 machine op * handle instSel for some control flow Bool,If,CProj,Region,Phi Handle 2-op expansions Shuffle instSel graph walk back again. * Basic if-block inst selects and asm prints * Add mul-by-coinstant to shift * left shift codegen basic * exclude RSP from *write* mask * 2-arg add (not immediate) mul-by-small constant opt. Some utilities. * Handle first loop Change inst sel walk again to pre-order, to set an early visit bit to stop cycles. CFGNode copies dom/loop info. Cmp not-immediate form. Ret/Fun lazy updates * inst select for new struct allocation * Float, bitwise and arithmetic operands codegen x86-64 (#150) * left shift codegen basic * sar codegen basic * merge * some basic ops * addf * divf, subf, mulf * rsp allowed in bitwise input, not output * formatting * left shift codegen basic * sar codegen basic * merge * some basic ops * addf * divf, subf, mulf * rsp allowed in bitwise input, not output * formatting * Remove non-exsting FP+imm ops * Handle first loop Change inst sel walk again to pre-order, to set an early visit bit to stop cycles. CFGNode copies dom/loop info. Cmp not-immediate form. Ret/Fun lazy updates * float ops without imm values * merge * merge * inst select for new struct allocation * left shift codegen basic * sar codegen basic * merge * some basic ops * addf * divf, subf, mulf * rsp allowed in bitwise input, not output * formatting * Remove non-exsting FP+imm ops * left shift codegen basic * sar codegen basic * merge * some basic ops * addf * divf, subf, mulf * rsp allowed in bitwise input, not output * formatting * float ops without imm values * merge * merge * Rebased on ch 19 * Update tests --------- Co-authored-by: Cliff Click <cliffc@acm.org> * cleanup after merge alpha-sort helper fcns implicit test vs zero/null * Add LEA op asm print works on ideal nodes for all tests * Minor cleanup lea * x86 addressing modes during inst select Drop New taking inits; just follow with initializing stores. Simplifies inst selelection which otherwise needs to undo this optimization and emit following init stores. Basic load/store for now, op-to-mem comes later add same becomes Shl by 1. Drop DivF-immiedate * extended ch13, 14,15,16 (#153) * merge2 * merge3 * Fix a few minor fuzzer bugs * Force array layout ld/st get size (but not signed/unsigned) Add unsigned LT for later range checks. * Fix a bunch of float issues was deleting required inputs * simpler invariant defensive copy inputs for simpler invariant in complex sharing patterns inc/dec form (just the opcode now). * Call & CallR X86 instructions * Add-from-memory op Remove FP immediate forms. * Remove name from TFP Never shoulda been there (but was convenient for awhile). Moved into FunNode, found by checking the linker table with a TFP. * New (#154) * merge2 * merge3 * GCM for float ops fixed, other cleanup - small extensions * call setup * merge2 * remove debug prints add check for bad call convention fix 3 tests (bad merge?) * cleanup call convention abi Needs more love at some point... * one more cleanup ABI --------- Co-authored-by: Cliff Click <cliffc@acm.org> * Add CmpMem form Common addressing mode print LEA can skip a base * Add a AddFMemX86 A bunch of mem op patterns are missing, hopefully they are just cut-n-paste from the existing patterns. * Docs * XMM reg mask fix Minor README updates * Allow inverted cmp/mem narrowing stores can bypass an AndMask Array length loads do not need control Some missing print info * Support "*ptr op= val" at least for MemAdd * missed golden rule update * Array len is u32 load-after-store zero/sign-extends if the store is truncating * One more missed case --------- Co-authored-by: hadha <helsgithub15@gmail.com> Co-authored-by: Tamás Hadházy <85063808+Hels15@users.noreply.github.com>
* Link to linear history and tag chaptersThalia Archibald2024-10-231-0/+2
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* Cleanup on ch5 READMECliff Click2024-09-291-100/+116
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* c will die when the scope dies.Tamas Hadhazy2024-09-291-1/+3
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* add graph and explanationTamas Hadhazy2024-09-291-4/+72
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* Backport tests (#87)Thalia Archibald2024-06-211-1/+1
| | | | | | | | | | | | | | | | | * Fix unexpected number parse errors * Add chapter titles * Split test files by chapter * Backport rename Fuzzer08Test to FuzzerWrap * Replace graph build scripts with Makefile * Backport Chapter05Test.testRegress1 * Backport require space after 'return' * Backport check EOF after return statement
* Format whitespace (#86)Thalia Archibald2024-06-211-11/+11
| | | | | | | | | * Trim trailing whitespace * Ensure final new lines * Convert line endings from CRLF to LF * Replace tabs with spaces
* Documentation updates (#76)Dibyendu Majumdar2024-05-021-2/+2
| | | | | | | | | | | | | | | | | | * More clearly explain why we do not have an AST in the implementation * Improve the description of type lattice. Cross reference to future chapters. * Minor update * Add lattice visual Revise the text describing meet. * minor update * Add a lattice visual to the text * Update the lattice visual. Add description of the new edges in the SoN graph
* fix small typo in chapter 5 (#73)David Rubin2024-04-231-2/+2
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* Sync changes to previous chapters (#57)Dibyendu Majumdar2024-01-151-3/+3
| | | Also fix broken links in README
* Backport some of the code refactoring to previous chapters (#50)Dibyendu Majumdar2023-12-071-0/+1
| | | | | | | | | | | * #44 Revise docs and comments * #44 Add starting scope to xScopes * #44 back some of the code refactoring port to previous chapters * #44 add_def should not be public * #44 add_def should not be public. Rename method names so that they are camelcase
* Link to parseIf. (#36)Dibyendu Majumdar2023-11-051-138/+18
| | | | | | | * Link to parseIf. Reorder the table of nodes. Fix example. * Replace code with links
* Backport changes in Chapter 5 to previous chapters and update Chapter5 ↵Dibyendu Majumdar2023-11-031-1/+219
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | documentation (#34) * Backport changes from chapter 5 to older chapters (#30) * Fix wrong indent * Backport to chapter 4 * Backport to chapter 3 * Backport to chapter 2 * Backport to chapter 1 * Add if statement to comment (#32) * Update visuals for chapters 1,2 & 3. Reenable drawing of edges from constants to Start for these chapters. * Update visuals for chapters 4. Revise text to explain the labeling of edges in graphs and that we omit edge from Constant to Start nodes from chapter 4. * Add code snippets for if statement parsing and the duplication and merging of ScopeNodes. Explain how scopeNodes are duplicated and merged. * Add constant check to minus node (#31) * Fix closing root block with } (#33) * Backport fix closing root block with } to chapter 4 and 3 (#35) * Show use-def edge from Phi to Region as dotted edge. Add example of Phi peephole. Update visuals. Add more examples. * Fix visuals in chapter 1 and README in chapter 4. * Remove subheading * Adjust spaces --------- Co-authored-by: XmiliaH <45106915+XmiliaH@users.noreply.github.com>
* Small doc cleanup (#24)XmiliaH2023-11-011-59/+54
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* Update visualdibyendumajumdar2023-11-011-0/+6
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* Update the description of Region nodedibyendumajumdar2023-11-011-5/+30
| | | | | Update visuals Update chapter list
* Update READMECliff Click2023-11-011-25/+43
| | | | Add true/false
* Add descriptions of the new node types in Chapter 5.dibyendumajumdar2023-11-011-1/+29
| | | | Add references to Cliff's thesis.
* Small updatesdibyendumajumdar2023-11-011-6/+6
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* Fix typodibyendumajumdar2023-11-011-1/+1
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* Add writeup of if statement parsingdibyendumajumdar2023-11-011-3/+33
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* Add writeup of if statement parsingdibyendumajumdar2023-11-011-0/+24
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* Start on Chapter 5dibyendumajumdar2023-11-011-3/+5
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* Start on Chapter 5dibyendumajumdar2023-11-011-0/+38