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| author | Dibyendu Majumdar <dibyendumajumdar@users.noreply.github.com> | 2023-11-11 23:17:22 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-11-11 23:17:22 +0000 |
| commit | 1a9cac97df063af82516ca35bde34fde62d24c56 (patch) | |
| tree | 7bab31bac1cf890466b3f0884a0f59c784cc0027 /chapter06/docs/06-graph3-nonconst.svg | |
| parent | 077b25007cf8af3c3673d017625ea255bda87620 (diff) | |
| download | Simple-1a9cac97df063af82516ca35bde34fde62d24c56.tar.gz Simple-1a9cac97df063af82516ca35bde34fde62d24c56.zip | |
Chapter 6 (#38)
* #37 Create chapter 6 skeleton
* #37 Revise type system - TOP, BOTTOM, CONTROL are now directly implemented in Type, XCONTROL is a new type and that's implemented directly too.
We have a _type field that is like an enum.
* #37 Revise Type.meet() - this is now final.
Subclasses can override xmeet() which is protected but
now handles simple types in Type itself.
* #37 Basic test for peephole of CFG
* #37 Revise compute of if
* #37 Revise compute of if
* #37 WIP peephole of If
* #37 WIP peephole of If
* #37 WIP peephole of If
* #37 WIP peephole of If
* #37 WIP peephole of If
* #37 WIP fix the chars inserted by IntelliJ
* #37 WIP Fix compute type in IfNode
* #37 WIP Null check region inputs
* #37 WIP Fix where we choose great grand parent instead of grand parent
Add new test
* #37 WIP More fixes and tests
* #37 WIP Some minor adjustments
* Cleanup folding dead IF tests
Remove isDeadCtrl & just test for the constant.
Remove DEAD_CTRL, doesn't properly reset between tests.
Move keep/unkeep to Node.
PhiNode has a proper compute() call.
ProjNode ideal is a lot simpler.
Region doesn't ever get a null.
Move the mergeScopes Region peep till after all Phis are added.
Type TOP and XCONTROL count as constants.
TypeTuple gets a toString
* #37 WIP Upate README
* #37 WIP Region node should check if one of its inputs is a region that needs to be peepholed
* #37 WIP If node should check if its ctrl input is a Region that has only 1 live input so can be peepholed
* #37 WIP Further update to README to make the peephole logic clearer. Also discuss the relationship between Region and Phi nodes
* Region removes dead input paths
Remove region-folding in Return, If.
Add a Makefile.
Reformat triple-quote lines to be emacs-friendly.
* StopNode idealize
Return type sharpens to include control input.
* Remove !=, >=, >; use Not and <, <=, ==
Fix bug mixing rotating different ops.
Generalize Add fold constants; apply to Mul, EQ.
Fix Div.copy
* Fix bug rotating e.g. < or <=
Peep is only valid for associative ops
* #37 WIP Doc updates
* Work over the Ch6 Readme
Major issue: Region inputs align 1-to-1 with Phi inputs, but a Region can have zero to many Phis. When we lose a Region input (dead path), we need to lose the same inputs to each Phi - but we don't lose the Phis themselves, unless we're folding away down to the last live input.
* Update chapter06/README.md
Co-authored-by: Yichen Yan <oraluben@outlook.com>
* Update chapter06/README.md
Co-authored-by: Yichen Yan <oraluben@outlook.com>
* #37 Backport type system changes to chapter 2
* #37 Backport type system changes to chapter 3
* #37 Backport type system changes to chapter 4
* #37 Backport type system changes to chapter 5
* #37 Merge chapter 5 updates from main.
Remove language grammar module as we describe the grammar incrementally in each chapter.
* #37 Chapter 6 doc updates - added visuals to show effects of CFG peephole
* #37 Sync some updates to chapter 2
* #37 Sync some updates to chapter 3
* #37 Sync some updates to chapter 4
---------
Co-authored-by: Cliff Click <cliffc@acm.org>
Co-authored-by: Yichen Yan <oraluben@outlook.com>
Diffstat (limited to 'chapter06/docs/06-graph3-nonconst.svg')
| -rw-r--r-- | chapter06/docs/06-graph3-nonconst.svg | 290 |
1 files changed, 290 insertions, 0 deletions
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x="296" y="-491.8" font-family="Times,serif" font-size="14.00">True</text> +<polygon fill="yellow" stroke="transparent" points="333,-485 333,-506 377,-506 377,-485 333,-485"/> +<polygon fill="none" stroke="black" points="333,-485 333,-506 377,-506 377,-485 333,-485"/> +<text text-anchor="start" x="336" y="-491.8" font-family="Times,serif" font-size="14.00">False</text> +</g> +<!-- If8->Start2 --> +<g id="edge2" class="edge"> +<title>If8->Start2:p0</title> +<path fill="none" stroke="red" d="M312.41,-540.3C306.75,-550.38 301.75,-562.04 299.83,-573.96"/> +<polygon fill="red" stroke="red" points="296.34,-573.75 299,-584 303.31,-574.32 296.34,-573.75"/> +<text text-anchor="middle" x="309.41" y="-542.9" font-family="Helvetica,sans-Serif" font-size="8.00">0</text> +</g> +<!-- If8->Start2 --> +<g id="edge3" class="edge"> +<title>If8->Start2:p1</title> +<path fill="none" stroke="black" d="M335,-540.02C335,-550.47 335,-562.42 335,-573.98"/> +<polygon fill="black" stroke="black" 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304,-304 370,-304 370,-340"/> +<text text-anchor="middle" x="337" y="-318.3" font-family="Times,serif" font-size="14.00">Region</text> +</g> +<!-- Region19->If13 --> +<g id="edge6" class="edge"> +<title>Region19->If13:p0</title> +<path fill="none" stroke="red" d="M315.29,-340.1C306.12,-348.94 296.78,-360.62 293.36,-373.72"/> +<polygon fill="red" stroke="red" points="289.84,-373.63 292,-384 296.78,-374.54 289.84,-373.63"/> +<text text-anchor="middle" x="312.29" y="-342.7" font-family="Helvetica,sans-Serif" font-size="8.00">1</text> +</g> +<!-- Region19->If13 --> +<g id="edge7" class="edge"> +<title>Region19->If13:p1</title> +<path fill="none" stroke="red" d="M335.71,-340.08C335.08,-349.53 334.4,-361.76 334.13,-373.68"/> +<polygon fill="red" stroke="red" points="330.62,-373.96 334,-384 337.62,-374.04 330.62,-373.96"/> +<text text-anchor="middle" x="332.71" y="-342.68" font-family="Helvetica,sans-Serif" font-size="8.00">2</text> +</g> +<!-- Phi_b20 --> +<g id="node11" class="node"> 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