unwind

Applies to C Applies to C++

Purpose

Informs the compiler that the stack can be unwound while a routine in the compilation is active.

Syntax


Syntax Diagram

Notes

Specifying -qnounwind can improve optimization of non-volatile register saves and restores.

Applies to C++ For C++ programs, specifying -qnounwind also implies -qnoeh.

Related References

Compiler Command Line Options
eh IBM Copyright 2003