Compiler Design · Intermediate Code Generation
Official IIT answer key · IIT Guwahati · Audited Aug 2026
GATE CSE 2025 Set 2 Q21 · MCQ · 1 mark
Key concept
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Topic notes
In GATE CS, Intermediate Code Generation (ICG) is tested through both theoretical/architectural concepts and precise algorithmic computations. Core recurring topics include Static Single Assignment (SSA) form variable counting and renaming, basic block partitioning via leader identification, register allocation on expression trees (Sethi-Ullman / Ershov labeling), array address calculation in 3-address code, and IR structures (Triples, AST, CFG, backpatching). The topic maintains an even split between 1-mark conceptual questions and 2-mark procedural NAT/MCQ problems.
Full Intermediate Code Generation guide →Consider the following statements about the use of backpatching in a compiler for intermediate code generation: (I) Backpatching can be used to generate code for Boolean expression in one pass. (II) Backpatching can be used to generate code for flow-of-control statements in one pass. Which ONE of the following options is CORRECT?
Topic-wise GATE CS PYQs with verified steps
Independent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.
