Pipeline Constraint Ignored - Pipeline Constraint Ignored - 2026.1 English - UG1448

Vitis HLS Messaging (UG1448)

Document ID
UG1448
Release Date
2026-06-23
Version
2026.1 English

Description

Warning: [200-939] Pipeline directive for loop %s has been removed because the loop is unrolled completely.
This message reports that one of the user constraint is ignored.

Solution

The loop is unrolled completely either by a user constraint or an automatic global configuration option. This causes the tool to ignore the pipeline directive. Verify that user and automatic global constraints are not contradicting with expected behavior.