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Cheat SheetCDGATE CS 2027

Compiler Design Cheat Sheet Pack

Fast Revision · Formulas · Traps · Visual Recall

Phases and lexing, FIRST and FOLLOW, LL(1) and LR parsing, a parser comparison table, SDT, three-address code, DAGs and data-flow analysis.

  • 12 A4 pagesone topic per page
  • PDF (A4)Version 1.0.2
  • Screen editionPhones, tablets, laptops
  • Print editionPrepared for A4 printing

₹29Regular price ₹39Launch price

Launch price: ₹29 instead of the regular ₹39.

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3 of 12 pages shown as images. The purchased PDF is sharper, searchable and has clickable bookmarks.

Page 1 of 12

What is inside

12 pages, one purpose each

  1. p. 1Cover, contents and how to useThe page map, a key to every box type, and the order to read on the last day.
  2. CD-02Compiler Phases and Lexical AnalysisWhich phase does what, which error belongs to which phase, and how do you count tokens?
  3. CD-03Grammars, FIRST and FOLLOWHow do you compute FIRST and FOLLOW without missing ε or $?
  4. CD-04LL(1) Parsing: Table, Conditions and ConflictsHow do you build an LL(1) table and prove a grammar is or is not LL(1)?
  5. CD-05LR Parsing: Items, Automata and TablesHow do you build the LR(0) automaton and fill ACTION and GOTO for each LR method?
  6. CD-06LL(1) vs LR(0) vs SLR(1) vs CLR(1) vs LALR(1)Which parser accepts which grammar, and how do you spot the conflict that rules one out?
  7. CD-07SDT and Runtime EnvironmentsIs a definition S- or L-attributed, and where does each value live at run time?
  8. CD-08Intermediate Code: TAC, SSA, Blocks, DAGsHow do you write TAC, split it into basic blocks and build the DAG of a block?
  9. CD-09Optimisation and Data-Flow AnalysisWhich analysis runs in which direction, and how do you solve liveness on a flow graph?
  10. CD-10GATE Traps SheetThe wrong turns that cost marks, each with the rule that fixes it
  11. CD-11Question Patterns and Solving ApproachRecognise the pattern in the stem, then run the matching routine
  12. CD-12Master Last-Day Revision SheetEverything to reread on the last evening, one page

How each page works

Built for fast revision

  • Quick Recall boxes: the facts to hold in memory
  • Formula boxes with variables, when each applies and the usual mistake
  • Students Think / Actually: the wrong intuition next to the correct rule
  • If You See This / Do This: a cue in the question and the steps to take
  • Compare tables for look-alike concepts
  • Trap boxes: a known wrong turn and its fix
  • Edge cases that change the answer
  • Decision flows to run in order
  • Master tables for quick lookup
  • Worked mini-examples
  • Diagrams

About this pack

Scope

Revision pages for Compiler Design in the GATE CS 2027 syllabus: compiler phases and lexical analysis, grammars with FIRST and FOLLOW, LL(1) tables, conditions and conflicts, LR items, automata and tables, an LL(1) vs LR(0) vs SLR(1) vs CLR(1) vs LALR(1) comparison, syntax-directed translation and runtime environments, intermediate code (TAC, SSA, basic blocks, DAGs), and optimisation with data-flow analysis. Every FIRST and FOLLOW set, conflict claim, LR item-set count and liveness set was produced by a grammar and data-flow script.

Is it right for you?

Who it is for, and how you get it

Who it is for

GATE CS 2027 candidates who have studied the subject and want fast, reliable revision: one page per sitting of about ten minutes, then the last-day sheet before the exam.

Screen edition

For phones, tablets and laptops. Clickable bookmarks jump between pages.

Print edition

The same pages prepared for A4 printing. Both editions are included.

Preparing more than one subject?Complete GATE CS Cheat Sheet CollectionAll 12 packs including Compiler Design, for ₹199 (launch price).

Before you buy

Common questions

What exactly will I receive?

A 12-page A4 PDF in two editions: a screen edition for reading on a device and a print edition prepared for A4 printing. Nothing is shipped; it is a download.

Can I read it on my phone, and can I print it?

Yes. The PDF opens in any PDF reader on phones, tablets and computers, and the bookmarks jump between pages. You may print it for your own study.

Is it for GATE 2027?

Yes. The packs follow the official GATE CS 2027 syllabus, and each pack says what is in scope and what is covered in another pack. GATE CS Mastery is independent and not affiliated with IIT, IISc or the GATE organising committee.

How is this different from ordinary short notes?

Each page answers one question and uses labelled boxes: rules with their conditions, traps with the fix, comparison tables and small worked examples. Every pack ends with a traps sheet, a question-patterns sheet and a one-page last-day sheet.

What happens after I pay?

When Razorpay confirms the payment, download buttons appear straight away and a receipt is emailed to you. Later, My library sends a one-time link to your purchase email and shows fresh download links.

What if the payment succeeds but the download fails?

Do not pay again. Your purchase is recorded as soon as the payment is verified. Open My library, or write to support@gatecsmastery.com with your order ID or Razorpay payment ID. See the refund policy for when a refund applies.