Recent questions tagged static-single-assignment

+2 votes

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MadeEasy Test Series: Compiler Design - Static Single Assignment
Consider the following code segment: $c=b+a$ $e=c-a$ $f=c*e$ $h=c+a$ $i=h+f$ The minimum number of temporary variable required to convert the above code segment to static single assignment form is ________. Doubt : Are we ... do minimizations in SSA? if YES then is it always the case, if NO when do we have to do it. Please clarify.

asked Dec 26, 2018 in Compiler Design by shreyansh jain Active (2.2k points) | 240 views

+1 vote

1 answer

2

MadeEasy Test Series: Compiler Design - Static Single Assignment
X = A / b Y = C + D Y = Y - X X = D + Y Z = F + Y Z = Z + A MInimum number of total variables needed to convert above TAC to Static Single Assignment Answer given ==>11 My apporach X1 = A / b Y1 = C + D Y2 = Y1 - X1 X2 = D + Y2 Z1 = F + Y2 Z2 = Z1 + A Is above code in SSA ??

asked Nov 23, 2018 in Compiler Design by jatin khachane 1 Loyal (7.5k points) | 123 views

+1 vote

0 answers

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MadeEasy Test Series: Compiler Design - Static Single Assignment
What is the Static Single Assignment (SSA) form for the following code segment: a = b+c; c = a+x; d = b+c; d = a+x; Should we use only 1 temporary variable for c=a+x and d=a+x because both of them evaluate the same expression finally?

asked Nov 15, 2018 in Compiler Design by Heena Jain (209 points) | 392 views

+1 vote

1 answer

4

Static Single Assignment form
Consider the following code generation: a=b+c; c=a+x; d=b+c; b=a+x; The minimum no. of total variables required to convert the above code to static single assignment form is______

asked Nov 1, 2018 in Compiler Design by Sambhrant Maurya Active (3.9k points) | 383 views

0 votes

0 answers

5

Static Single Assignment (2)
Can we create one address code and two address code in static single assignment? Say expression is $q + r / 3 + s - t * 5 + u * v/w$ The least number of temporary variables required to create a ... expression_____________ The least number of temporary variables required to create a two-address code in static single assignment form for this expression ________________

asked May 31, 2018 in Compiler Design by srestha Veteran (119k points) | 168 views

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1 answer

6

Static Single Assignment
Definition of Static Single Assignment Static single-assignment form arranges for every value computed by a program to have a unique assignment (aka, “definition”) but p3 = a - b q4 = p3 * c p4 = u * v q5 = p4 + q4 is an valid example of SSA Now, tell me a,b,c,u,v are not assigned or previously recognized Then how this is a valid example of SSA? for ref see here

asked May 31, 2018 in Compiler Design by srestha Veteran (119k points) | 98 views

0 votes

2 answers

7

static-single
what will be the minimum number of temporary variables required in case of single static assignment? (a + (b*c)) - (b*c)

asked Feb 1, 2018 in Compiler Design by mohit_2010 (5 points) | 102 views

+2 votes

0 answers

8

MadeEasy Test Series 2018: Compiler Design - Static Single Asssignment
i got 5 but the given ans is 4 please confirm

asked Jan 28, 2018 in Compiler Design by Sukhdip Singh (133 points) | 94 views

+1 vote

0 answers

9

#SSA001
The minimum number of temporary variables to convert it into SSA is _________. a + b × c + d – e – a + b × c Assume order of precedence from highest to lowest as: ×, + and –. Consider associativity for + and × are not important but – is left associative. My ans : 5

asked Jan 25, 2018 in Compiler Design by Anjan Active (1.3k points) | 101 views

+1 vote

2 answers

10

MadeEasy Test Series 2018: Compiler Design - Single Static Assignment
I AM UNABLE TO DO THIS QUES EVERYTIME, CAN SOMEONE TELL ME THE CORRECT APPROACH ?

asked Jan 25, 2018 in Compiler Design by raviyogi Active (2.5k points) | 119 views

+1 vote

2 answers

11

MadeEasy Test Series 2018: Compiler Design - Single Static Assignment
Consider the following code segment: The minimum number of temporary variable required to convert the above code segment to static single assignment form is ________.

asked Jan 24, 2018 in Compiler Design by rahul sharma 5 Boss (25.6k points) | 366 views

+2 votes

0 answers

12

Static Single Assignment
x = 7 if b { x = 8 } print(x) Convert the following code in Static single assignment form.

asked Jan 21, 2018 in Compiler Design by Mk Utkarsh Boss (36.6k points) | 102 views

+1 vote

1 answer

13

Temporary variable required in SSA
Consider the following code segment: c = b + a e = c - a f = c * e h = c + a i = h + f The minimum number of temporary variable required to convert the above code segment to static single assignment form is ________.

asked Jan 19, 2018 in Compiler Design by Hemant Parihar Boss (16.5k points) | 252 views

+2 votes

0 answers

14

Test series

asked Jan 14, 2018 in Compiler Design by pa-try (155 points) | 67 views

+2 votes

1 answer

15

Static variable doubt

asked Jan 13, 2018 in Programming by thepeeyoosh Active (2k points) | 68 views

+1 vote

2 answers

16

#of variables in SSA
Consider the following code segment: c=b+a e=c-a f=c*e h=c+a i=h+f The minimum number of $\color{blue} {total}$ and $\color{blue} {temporary }$ variable required to convert the above code segment to static single assignment form are ________

asked Jan 10, 2018 in Compiler Design by Anjan Active (1.3k points) | 313 views

+1 vote

0 answers

17

Self doubt on SSA
Convert the following 3 address code to single Static Assignment. a = b + c d = d + a.

asked Dec 28, 2017 in Compiler Design by AnilGoudar Active (4.4k points) | 115 views

+1 vote

0 answers

18

Static Single Assignment
Consider below two question :- https://gateoverflow.in/39675/gate-2016-1-19 https://gateoverflow.in/8365/gate2015-1_55 Q1 >> Consider the following code segment. x = u - t; y = x * v; x = y + w; y = t - z; y = x * ... temp variable to "r", whereas in Solution 1 we have allocated temp variable to u and t both. Even both are using static single assignment?

asked Nov 4, 2017 in Compiler Design by Shubhanshu Boss (18.3k points) | 190 views

+1 vote

1 answer

19

Static single assignment
The least number of TOTAL variables required to create a three-address code in static single assignment form for the expression q + r / 3 + s - t * 5 + u * v/w is__________________. https://gateoverflow.in/8365/gate2015-1_55 https://gateoverflow.in/39675/gate-2016-1-19

asked Sep 5, 2017 in Compiler Design by VS Boss (10.9k points) | 371 views

+24 votes

4 answers

20

GATE2017-1-12
Consider the following intermediate program in three address code p = a - b q = p * c p = u * v q = p + q Which one of the following corresponds to a static single assignment form of the above code? p1 = a - b q1 = p1 * c p1 = u * v q1 = p1 + q1 p3 = a - b q4 = p3 * c p4 = u * v q5 = p4 + q4 p1 = a - b q1 = p2 * c p3 = u * v q2 = p4 + q3 p1 = a - b q1 = p * c p2 = u * v q2 = p + q

asked Feb 14, 2017 in Compiler Design by Arjun Veteran (431k points) | 4.2k views

0 votes

1 answer

21

Static Variable C Initialization
Why am i not getting any error while executing the following statements? int x=20; int z=x;//error expected but not coming int main() { int y=10; static int temp=y; //Error expected but not coming temp=99;//Error expected but not coming getch(); }

asked Dec 28, 2016 in Programming by rahul sharma 5 Boss (25.6k points) | 284 views

+8 votes

1 answer

22

Convert the given Three Address Code (TAC) into Static Single Assignment (SSA) ?

asked Dec 17, 2016 in Compiler Design by papesh Boss (25.7k points) | 820 views

+51 votes

12 answers

23

GATE2016-1-19
Consider the following code segment. x = u - t; y = x * v; x = y + w; y = t - z; y = x * y; The minimum number of total variables required to convert the above code segment to static single assignment form is __________.

asked Feb 12, 2016 in Compiler Design by Sandeep Singh Loyal (7.2k points) | 10.7k views

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