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B4 Boc= a + b b = bxc d m = d f = 0 B₁ a = a e b = b + a B3 b f e=a+b d = d - e bx c 1 BA e = b - a B6 g = 30 B7 b = f + g d = d e B5C = bxc g = f + 3 B₂b = bx c a = b a g = f + 1

B4 Boc= a + b b = bxc d m = d f = 0 B₁ a = a e b = b + a B3 b f e=a+b d = d - e bx c 1 BA e = b - a B6 g = 30 B7 b = f + g d = d e B5C = bxc g = f + 3 B₂b = bx c a = b a g = f + 1

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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  1. Find the extended basic blocks and list their distinct paths. 
  2. Apply local value numbering (LVN) to each block. 
  3. Apply superlocal value numbering (SVN) to the EBBs. Note any improvements that it finds beyond those found by LVN. 
This diagram illustrates a flowchart of mathematical operations distributed across different blocks, labeled from \( B_0 \) to \( B_7 \). Each block contains a set of operations, likely representing a computational process or algorithm. Here is a detailed explanation of each block: - **Block \( B_0 \):** - \( c = a + b \) - \( b = b \times c \) - \( m = d - d \) - \( f = 0 \) - **Block \( B_1 \):** - \( a = a - e \) - \( b = b + a \) - **Block \( B_3 \):** - \( b = b \times c \) - \( f = 1 \) - **Block \( B_4 \):** - \( e = a + b \) - \( d = d - e \) - **Block \( B_6 \):** - \( g = 30 \) - \( e = b - a \) - **Block \( B_7 \):** - \( b = f + g \) - \( d = d - e \) - **Block \( B_5 \):** - \( c = b \times c \) - \( g = f + 3 \) - **Block \( B_2 \):** - \( b = b \times c \) - \( a = b - a \) - \( g = f + 1 \) **Flow Details:** - The process begins at \( B_0 \), with lines indicating the flow to \( B_1 \), \( B_3 \), and other subsequent blocks. - Each block seems to be connected, potentially indicating different paths or iterations in a loop. - Some blocks such as \( B_4 \), \( B_6 \), and \( B_7 \) branch out from the main line, modifying variables based on prior calculations. - Termination or continuation appears to be flexible, involving cycling back to earlier blocks like \( B_1 \) and \( B_3 \). This flowchart is representative of iterations and dependencies within a computational method, illustrating data manipulation and the conditional progression of variables.
Transcribed Image Text:This diagram illustrates a flowchart of mathematical operations distributed across different blocks, labeled from \( B_0 \) to \( B_7 \). Each block contains a set of operations, likely representing a computational process or algorithm. Here is a detailed explanation of each block: - **Block \( B_0 \):** - \( c = a + b \) - \( b = b \times c \) - \( m = d - d \) - \( f = 0 \) - **Block \( B_1 \):** - \( a = a - e \) - \( b = b + a \) - **Block \( B_3 \):** - \( b = b \times c \) - \( f = 1 \) - **Block \( B_4 \):** - \( e = a + b \) - \( d = d - e \) - **Block \( B_6 \):** - \( g = 30 \) - \( e = b - a \) - **Block \( B_7 \):** - \( b = f + g \) - \( d = d - e \) - **Block \( B_5 \):** - \( c = b \times c \) - \( g = f + 3 \) - **Block \( B_2 \):** - \( b = b \times c \) - \( a = b - a \) - \( g = f + 1 \) **Flow Details:** - The process begins at \( B_0 \), with lines indicating the flow to \( B_1 \), \( B_3 \), and other subsequent blocks. - Each block seems to be connected, potentially indicating different paths or iterations in a loop. - Some blocks such as \( B_4 \), \( B_6 \), and \( B_7 \) branch out from the main line, modifying variables based on prior calculations. - Termination or continuation appears to be flexible, involving cycling back to earlier blocks like \( B_1 \) and \( B_3 \). This flowchart is representative of iterations and dependencies within a computational method, illustrating data manipulation and the conditional progression of variables.
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