Developer Guide and Reference

Contents

Passing and Returning Bounds

The pointer checker is not supported on
macOS*
systems.
When you pass a pointer to a function, the pointer checker also passes the bounds information associated with the pointer. The feature uses the following methods to pass and return arguments:
  • If you pass a pointer on the stack, the pointer is in a memory location, so the pointer checker stores the bounds information when you compile your enabled module. The bounds information is stored in the bounds table entry associated with the address of the pointer.
  • If you pass a pointer on a register, the compiler uses a location in thread local storage to pass the bounds. There is one such location associated with each register in which a pointer can be passed. This same location is used to return the bounds when a pointer is returned by a function.

Product and Performance Information

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Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804