[SYSTEMDS-2801] Rewrite rule to remove (par)for-loops over empty sequences

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Done
• Fix Version/s: SystemDS 2.1
• Component/s: Compiler
• Assignee: Unassigned
• Reporter: Patrick Damme
• Created: 19/Jan/21 20:31
• Updated: 14/May/21 10:42
• Resolved: 14/May/21 10:42

Description

Sometimes, a (par)for-loop can be known to not have a single iteration. In these cases, the program structure could be simplified by removing the loop altogether. This is a short example:

for(i in seq(1, 0, 1)) {
    print(i);
}

Issue Links

• links to: GitHub Pull Request #1165