7.3.1. Execution Model - Execution of enqueued component calls only occurs when the ihc_hls_component_run_all(void* funcptr) function is called. All externally visible side effects of the execution (for example, return data, pointers, or hosts) are not visible in the testbench until the ihc_hls_component_run_all() function explicitly triggers the execution. - 2025-12-15

Altera High Level Synthesis Compiler Pro Edition User Guide

Version
24.1
Execution of enqueued component calls only occurs when the ihc_hls_component_run_all(void* funcptr) function is called. All externally visible side effects of the execution (for example, return data, pointers, or hosts) are not visible in the testbench until the ihc_hls_component_run_all() function explicitly triggers the execution.