Instruction scheduling in Compiler Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the main goal of instruction scheduling.

Compiler Design

The primary goal of instruction scheduling is to [1] the execution of instructions to improve performance.

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Aoptimize

Bdelay

Cignore

Drandomize

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'delay' because scheduling sounds like waiting.

Choosing 'randomize' thinking it adds variety.

Instruction scheduling aims to optimize the order of instructions to make the program run faster.

2fill in blank

medium

Complete the code to describe a key factor instruction scheduling tries to avoid.

Compiler Design

Instruction scheduling tries to avoid [1] hazards that cause delays in execution.

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Adata

Bsyntax

Clogic

Druntime

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'syntax' because it sounds like an error.

Choosing 'runtime' thinking about program crashes.

Data hazards occur when instructions depend on the results of previous instructions, causing delays.

3fill in blank

hard

Fix the error in the statement about instruction scheduling.

Compiler Design

Instruction scheduling rearranges instructions to [1] pipeline stalls and improve CPU efficiency.

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Acreate

Breduce

Cignore

Dincrease

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'increase' because it sounds like adding something.

Choosing 'ignore' thinking stalls are not important.

The goal is to reduce pipeline stalls, not increase or create them.

4fill in blank

hard

Fill both blanks to complete the description of instruction scheduling techniques.

Compiler Design

Static scheduling is done at compile time, while [1] scheduling happens during [2].

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Adynamic

Bruntime

Ccompile

Dlinking

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing compile time with runtime.

Choosing linking which is unrelated here.

Dynamic scheduling occurs during runtime, unlike static scheduling which is done at compile time.

5fill in blank

hard

Fill all three blanks to complete the code describing a scheduling method.

Compiler Design

In [1] scheduling, the processor uses a [2] window to reorder instructions and avoid [3] hazards.

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Adynamic

Bsliding

Cdata

Dstatic

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing static instead of dynamic scheduling.

Confusing control hazards with data hazards.

Dynamic scheduling uses a sliding window to reorder instructions and avoid data hazards.