5.4 Performance Checks

DVT SystemVerilog IDE User Guide

Rev. 23.2.28, 28 November 2023

Installation Checklist
- Install DVT Using a pre-packed Distribution
- Install DVT Using the Update Site
- Set the License
Predefined Projects
Getting Started
- What is a Workspace
- What is a Project
- Project Natures
- Workspace and Workbench
- Refresh
- Linked Resources
- Backup and Local History
- Basic Tutorial
Build Configurations
- Non-top files
- default.build
- Auto-config
- Simulator Log-config
- Emulating compiler invocations
- Multiple .build Files
- Compatibility Modes
  - Default DVT Compatibility Mode
  - gcc Compatibility Mode
  - ius.irun Compatibility Mode
  - ius.perspec Compatibility Mode
  - questa.vcom Compatibility Mode
  - questa.vlog Compatibility Mode
  - questa.qrun Compatibility Mode
  - vcs.vhdlan Compatibility Mode
  - vcs.vlogan Compatibility Mode
  - xcelium.xrun Compatibility Mode
- Paths
- Strings
- Comments
- Environment Variables
- Including Other Argument Files
- Build Persistence
- DVT Auto-Linked
- Run a Script Before Build
- All Build Directives
- e Language Test Files
- e Language SPECMAN_PATH
- SystemVerilog OVM or UVM Library Compilation
- Xilinx Libraries Compilation
- Intel(Altera) Quartus Libraries Compilation
- Questa Libraries Compilation
- Use of External Programs
> Compile Checks
- Compile Waivers
- Semantic Checks
- Synthesis Checks
- > Performance Checks
- Dead Code Checks
- Non Standard Checks
Content Assist (Autocomplete)
- Content assist for CamelCase and Underscore
- Code Templates
- Module Automatic Instantiation
- Override Functions Using Autocomplete
- Implement Extern Functions Using Autocomplete
- Use Assignment Pattern for Struct Type Variable
Quick Fix Proposals
- Add Parameter to Module
- Add Port to Module
- Add Signal to Sensitivity List
- Add Virtual Qualifier to Interface Type
- Correct Spelling In Comments and Strings
- Create Class In New File
- Create File From Build Config Editor
- Create Included File
- Create Interface Class In New File
- Declare Method
- Declare Variable
- Did You Mean
- Explicitly Declare
- Fully Qualify Type
- Implement Extern Method
- Implement Missing Pure Virtual Methods
- Import Type
- Remove 'local' or 'protected' Qualifier
- Remove Signal from Sensitivity List
- Remove Signal Never Used
- Update Extern Prototype/Implementation
- Update Module Instance
- Update Virtual Method Signature
- Waive Compilation Problems
Quick Assist Proposals
- Bind Method Call Arguments by Name
- Bind Method Call Arguments by Position
- Connect Instance Ports by Name
- Connect Instance Ports by Position
- Expand .* Port Connections
- Extract to Variable
- Extract to Method
- Extract to Module
- Move Selection to New File
- Join Extern and Implementation
- Split to Extern and Implementation
- Rename in File
Content Filters
- Content Filters XML syntax
- Filtering by element type
- Content Filters Examples
- Predefined Content Filters
Code Templates
- Code Templates in Autocomplete
- Method Code Templates
- Global Code Templates
- Project Level Code Templates
- Code Templates View
File Templates
Project Templates
- What is a project template?
- How to generate code from a project template
  - Step 1. Specify Directories
  - Step 2. Specify Parameters
- Template Configuration
  - template-config.xml
  - template.config
- Add from Template
Code Formatting
- Whitespace
- Indentation
- Vertical Alignment
- Line Wrapping
- Disable Format for Code Sections
- Format Multiple Files
- External
- Preferences Keys
Override Functions
- Override Annotation
- Inspect Overrides in the Quick Type Hierarchy View
- Inspect Overrides in the Layers View
- Override Using the Dialog
- Override Using Autocomplete
- Override Using the Type Hierarchy View
Generate Getters and Setters
Module Automatic Instantiation
- Autoinstance Using Autocomplete
- Autoinstance Using Drag and Drop
Semantic Search
Show Usages, Readers or Writers
Favorite Searches
Show Constraints
Show Instances
- Show Instances in the Search View
- Show Instances in the Design Hierarchy View
Quick Search in Views
- CamelCase
- Simple Regex
- Hierarchical Search
- Search for Members
- Search Port in Design Hierarchy
- Search Port in Verification Hierarchy
- Search all UVM Phase Overrides
- Search Global API
Trace Connections
- Trace Connections from Design Hierarchy
- Trace Connections from Editor
- Trace Connections View
- Trace Path
Breadcrumb Navigation Bar
- Design Breadcrumb
- Verification Breadcrumb
- Scope Breadcrumb
- Filesystem Breadcrumb
Code Factory
Refactoring
- Rename Refactoring
- Rename Port Across the Design Hierarchy
- Rename File
- Bind Method Call Arguments by Name
- Bind Method Call Arguments by Position
- Connect Instance Ports by Name
- Connect Instance Ports by Position
- Expand .* Port Connections
- Extract to Variable
- Extract to Method
- Extract to Module
- Move Selection to New File
- Join Extern and Implementation
- Split to Extern and Implementation
- Change Method Signature
- Connect Instances Across the Design Hierarchy
  - Connect Instances Using New Ports
  - Connect Instances Using Existing Ports
  - Structural Changes Preview Diagram
  - Refactoring Connect View
- Add Port to Module from Selected Field
- Add New Port to Module
- Add New Parameter to Module
- Refactoring Scripts
  - Writing a Refactoring Script
  - Applying a Refactoring Script
Diagrams
- UML Diagrams
- Architecture UML Diagrams
- Sequences UML Diagrams
- Design Diagrams
- UVM Components Diagrams
- Diagram Actions
- Diagram Toolbar
- Diagram Magnifier
- WaveDrom Timing Diagrams
- Bit Field Diagrams
  - Bit Field Diagrams for UVM registers
  - Bit Field Diagrams for packed data types
Low Power Format Support
- Supply Network Diagram
Export HTML Documentation
External Tools Integration
- Run Configurations
- Smart Log
- External Builders
- External Documentation
Debugger Integration
- Simulation Prerequisites
- Launch a Debug Simulation
- Connect to an Existing Simulation
- Breakpoints
- Threads, Call Stack, Stepping
- Variables
- Watch Expressions
- Debug Specific Configurations
Custom Dialogs
- Quick Steps
- Customizing the Dialog Output
- SWT/XML Reference
  - Layouts
  - Widgets
- Custom Dialog Snapshots
  - Custom Dialog Snapshots File Syntax (XML)
Command Line Interface
- dvt_cli.sh
- Syntax
- Examples
- Makefile Example
- Commands
Macros Support
- Inactive Code Highlight
  - Overview
  - Settings
- Macro Expansion
- Macros and Quick Macros Views
Reminders (TODO Markers)
OVM Support
- OVM Compliance Review
- OVM Field Editor
  - Triggering
  - Interface
  - Problems
  - Tips
- OVM Smart Log
- Quick OVM Documentation Access
- OVM Templates
UVM Support
- Runtime UVM Configuration Queries
- Static UVM Configuration Queries
- UVM Browser
- UVM Compliance Review
- UVM Content Filters
- UVM Field Editor
  - Triggering
  - Interface
  - Problems
  - Tips
- UVM Runtime Elaboration
- UVM Sequence Tree
- UVM Smart Log
- UVM Templates
- UVM Verification Hierarchy
- OVM to UVM Migration
VMM Support
- VMM Smart Log
- Quick VMM Documentation Access
- VMM Templates
Settings Management
- Managed Settings
- Unmanaged Settings
- User and Common Settings Location
- Use Cases
- Examples
- Deprecated Settings Management (before DVT 3.5)
Reference
- Comments Formatting
  - Javadoc
  - Natural Docs
- Common Shortcuts
- Custom Pragmas
- DVT Resource Monitor
- Editor Notification
- Editor Right Click Menu
  - Folding
  - Macros
  - Source
  - Code Factory
  - Show
  - References
  - Trace
  - Refactor
- Hyperlinks
  - Hyperlinks in Comments
- Icons and Decorations
- Inactive Generates Code Highlight
- Lazy Bring up Resources
- Memory Monitor
- Scripts
- Syntax Coloring
- Themes
- Toolbar Actions
- Tooltips
- Views
Application Notes
- C/C++ support
- Design Elaboration
- Compilation Speed-up
- Precompilation Support
- Encrypted VIP Support
- FPGA Support
  - Intel(Altera) Quartus
    - Intel(Altera) Quartus Libraries Compilation
  - Xilinx ISE/Vivado
    - Xilinx Libraries Compilation
- Generating External Tool Scripts from the DVT Build Configuration
- Incremental Compilation
- Preprocessed Files Support
  - Using the PVerilog editor
  - Advanced functionality in preprocessing files
- Output and logging
- UVM Library Compilation Troubleshooting
- Visual Artifacts
Tips and Tricks
Q & A
- I am new to Eclipse, where should I start from?
- Where can I find DVT Help?
- How do I see and configure the key shortcuts?
- Are there any backup files in Eclipse?
- Workspace in use, cannot launch eclipse...
- Locking is not possible in the directory...
- How to start DVT Eclipse with a different eclipse.ini
- Save could not be completed
- IBM Clearcase Plugin
- Non existing package mti_fli
- How to use Working Sets for filtering Problems/Task/Search views?
- How to handle Simulator and Command Line Macros
- How do I Access Files Outside Project Dir - Working with Linked Resources
- Mapping Linux to Windows (/proj/ to Z:\proj\)
- Subversive vs Subclipse
- How do I associate a project with both DVT and CDT?
- Can I use vi/vim along with DVT?
- Can I perform dos2unix or unix2dos from DVT?
- How can I configure Eclipse to use a local CVS repository?
- I am using the Common Desktop Environment via Citrix and experiencing crashes. What can I do?
- How do I change the background color of the Editor?
- Some widget colors are not displayed properly. What can I do?
- How do I change the tooltip colors?
- How do I change Internet Proxy Settings?
- Eclipse does not start, there is no Workspace, metadata or log file created
- Workspace permissions
- How do I link mylyn with Bugzilla?
- How do I print source code?
- How do I disable Eclipse Software Sites?
- How do I revert to a previous version?
- What are the most common shortcuts in DVT?
- How does DVT integrate with emacs?
- How does DVT integrate with CVS?
- How to set an environment variable within a Run Configuration?
- How to run a remote Unix commnad from DVT Eclipse for Windows?
- Rebuild shortcut (Ctrl + Alt + R) does not work
- I want to use an alias in a DVT Generic Run Configuration, but it's not recognized
- How to set multiple paths as sources of predefined projects ?
- Lines are suddenly changing indentation when I edit text or move the cursor through the editor.
- How to change the directory where the build log file is saved ?
- How to find the DVT logs on Linux/Unix ?
- How to create resource filters ?
- How to create custom shortcut and button for a Run Configuration?
- I know that file.foo is present in the project location, but I can't see it in the Navigator View
- How to copy the full path to the file in the current editor?
- How to adjust the console logs filters matching parameters?
- When I switch to Block (Column) Selection mode the font changes
- In Block (Column) Selection mode I see strange editng artifacts
- How to modify the font size in the code editors?
- How to automatically checkout/lock files from the revision control system ?
- How can I see if a file is read-only?
- How can I open a file in DVT from the terminal?
- How can I open a file in DVT from Questa?
- How do I change the name of the xterm opened by a DVT Generic Run Configuration?
- I get errors while installing or updating a plugin from an update site
What is New?
How to Report an Issue?
Legal Notices
Third Party Licenses

5.4 Performance Checks

ID	Message
ASSIGNMENT_NON_BLOCKING	Non-blocking assignment of # in combinational logic (use blocking assignment)
ASSIGNMENT_NON_BLOCKING	Non-blocking assignment of local variable # (use blocking assignment)
SENSITIVITY_UNUSED	The process is not sensitive to #

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