SYNTAX ANALYSIS
ROLE OF THE PARSER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When code is generated for “a < b and c > d", the locations left for backpatching are
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falselist of a < b
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falselist of a < b and falselist of c > d
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falselist of a < b, falselist of c > d, truelist of c > d
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truelist of a < b, falselist of a < b, truelist of c > d, falselist of c > d
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Explanation:
Detailed explanation-1: -Backpatching technique is incorporated using three functions. Makelist(), merge() and backpatch() are the three functions carried out in two passes to generate code using backpatching. makelist(i) – This is used to create a new list containing three-address location i, and it returns a pointer to the list.
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