GATE CS 2015 Set 1 — Question 47
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Compiler Design → Intermediate Code Generation → Three-Address Code
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Question
The least number of temporary variables required to create a three-address code in static single assignment form for the expression is ___________.
Correct answer
8 to 8
Solution
The expression is .
Static Single Assignment (SSA) form requires a new temporary variable for every assignment (result of an operation).Three-address code sequence:
Static Single Assignment (SSA) form requires a new temporary variable for every assignment (result of an operation).Three-address code sequence:
1.
2.
3.
4.
5.
6.
7.
8.
There are 8 operations, each producing a result. In SSA, each result must be stored in a unique variable. Thus, 8 temporary variables are required.Continue learning with Success Tracker
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