IBM Support

Internal Compiler Error

Preventive Service Planning


Abstract

This page provides details about internal compiler errors from IBM compilers. It explains what actions you can take if you experience this error.

Content

A compiler generates an internal compiler error message when it encounters an exception from which it cannot recover. In almost all cases internal compiler errors can be attributed to the compiler application code.

Resolving The Problem
1.  The first step is to install the latest PTF/Fix Pack update for the compiler to verify if the problem has already been corrected.  Links to IBM compiler Fix Lists can be found below:
 
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2.  If the error is still present, it can be reported to IBM Support or your organization's OEM provider, depending on where the compiler was obtained from. The service request may be subject to a valid software maintenance agreement - for more information please contact your organization's IBM Sales Representative or OEM provider.

3.  A self-contained test case will be required by the support team so that the issue can be reproduced and investigated. A preprocessed test case from the file that triggers the error is the easiest way to provide a reproducible example, otherwise please include all required source, headers, includes or module files along with the compile options used and any other relevant information about the build environment.

4.  To temporarily work around the internal compiler error it is recommended to isolate the source input file causing the error, and review the compile options used. Lower levels of optimization, and removal of certain functional options might avoid the cause of the error. Reduction of the source code itself might aide in determining the source line triggering the error - modifications to this code might avoid the error.

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Document Information

Modified date:
09 May 2025

UID

ibm17233093

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