The output of lexical analyzer is
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If conversion from one type to another type is done automatically by the compiler then,it is called
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Syntax directed translation scheme is desirable because
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A top down parser generates
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Macro-processors are ______
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Inherited attribute is a natural choice in
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Concept which can be used to identify loops is
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Reduction in strength means
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the term environment in programming language semantics is said as
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A self relocating program is one which
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The lexical analyzer takes_________as input and produces a stream of_______as output.
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Intermediate code generation phase gets input from
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A grammar is meaningless
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The optimization technique which is typically applied on loops is
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resolution is externally defined symbols is performed by
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Which of the following is used for grouping of characters into tokens?
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Whether a given pattern constitutes a token or not depends on the
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A optimizing compiler
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Which of the following symbols table implementation is based on the property of locality of reference?
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Three address code involves
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A compiler is
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In a bottom up evaluation of a syntax direction definition ,inherited attributes can
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Which of the following actions an operator precedence parser may take to recover from an error ?
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DAG representation of a basic block allows
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Recursive descent parsing is an example
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The graph that shows basic blocks and their successor relationship is called
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Generation of intermediate code based on a abstract machine model is useful in compilers because
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Advantage of panic mode of error recovery is that
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In operator precedence parsing , precedence relations are defoned
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An intermediate code form is
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Code can be optimized at
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Consider the program given below, in a block-structured pseudo-language with lexical scoping and nesting of procedures permitted. Program main; Var ... Procedure A1; Var ... Call A2; End A1 Procedure A2; Var ... Procedure A21; Var ... Call A1; End A21 Call A21; End A2 Call A1; End main. Consider the calling chain: Main -> A1 -> A2 -> A21 -> A1 The correct set of activation records along with their access links is given by
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Pee hole optimization
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In which way(s) a macroprocessor for assembly language can be implemented ?
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A compiler for a high level language that runs on one machine and produce code for different machine is called
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Which of the following is used for grouping of characters into tokens (in a computer)
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Local and loop optimization in turn provide motivation for
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A simple two-pass assembler does which of the following the first phase
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the translator is best described as
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Which of the following is the most powerful parser?
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Which of the following are language processors?
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Relocating bits used by relocating loader are specified by
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Synthesized attribute can be easily simulated by a
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A compiler that runs on one machine and produces code for a different machine is called
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_________or scanning is the process where the stream of characters making up the source program is read from left to right and grouped into tokens.
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Input to code generator
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In analysis the compilation PL/I program the description Create of more optimal matrix is associated with
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A bottom up parser generates
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In an absolute loading scheme which loader function is accomplished by assembler ?
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