Intermediate Code Generation

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Q. In three-address code, how is a binary operation typically represented?
  • A. result = operand1 operator operand2
  • B. operand1 operator operand2 = result
  • C. result operator operand1 operand2
  • D. operand1 operand2 operator = result
Q. In three-address code, how many operands can each instruction have?
  • A. One
  • B. Two
  • C. Three
  • D. Four
Q. What is a common characteristic of intermediate code?
  • A. It is always in binary format
  • B. It is platform-specific
  • C. It is easier to analyze than high-level code
  • D. It cannot be optimized
Q. What is a common optimization technique applied during intermediate code generation?
  • A. Loop unrolling
  • B. Dead code elimination
  • C. Inlining
  • D. All of the above
Q. What is the advantage of using an abstract syntax tree (AST) in intermediate code generation?
  • A. It is easier to optimize than linear representations
  • B. It directly represents machine instructions
  • C. It simplifies lexical analysis
  • D. It is more compact than binary code
Q. What is the primary purpose of intermediate code generation in a compiler?
  • A. To optimize the source code
  • B. To translate high-level code to machine code
  • C. To provide a platform-independent representation of the source code
  • D. To perform lexical analysis
Q. What is the role of a semantic analyzer in the context of intermediate code generation?
  • A. To check for syntax errors
  • B. To generate machine code
  • C. To ensure type correctness and gather type information
  • D. To optimize the intermediate code
Q. What is the typical output of the intermediate code generation phase?
  • A. Source code
  • B. Assembly code
  • C. Intermediate representation
  • D. Executable code
Q. Which of the following best describes the relationship between syntax trees and intermediate code?
  • A. Syntax trees are generated after intermediate code
  • B. Intermediate code is generated directly from syntax trees
  • C. Syntax trees and intermediate code are the same
  • D. Intermediate code is generated before syntax trees
Q. Which of the following is a benefit of using intermediate code in a compiler?
  • A. It eliminates the need for parsing
  • B. It allows for easier debugging of the source code
  • C. It enables code generation for multiple target architectures
  • D. It simplifies lexical analysis
Q. Which of the following is an advantage of using intermediate code?
  • A. It simplifies the parsing process
  • B. It allows for easier debugging
  • C. It enables machine-independent optimizations
  • D. It eliminates the need for a front-end
Q. Which of the following is NOT a common form of intermediate code?
  • A. Three-address code
  • B. Abstract syntax tree
  • C. Bytecode
  • D. Machine code
Q. Which of the following optimizations can be performed on intermediate code?
  • A. Dead code elimination
  • B. Lexical analysis
  • C. Syntax checking
  • D. Code generation
Q. Which of the following statements about intermediate code is true?
  • A. It is always in a high-level programming language
  • B. It is specific to the target architecture
  • C. It can be optimized before final code generation
  • D. It is not used in modern compilers
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