2dbee9f19f
The test to exit the loop if the integer control value would overflow an int32 turns out not to work on some ICC versions, as it's dependent on the assumption that the compiler will execute the code as written rather than "optimize" it. ICC lacks any equivalent of gcc's -fwrapv switch, so it was optimizing on the assumption of no integer overflow, and that breaks this. Rewrite into a form that in fact does not do any overflowing computations. Per Tomas Vondra and buildfarm member fulmar. It's been like this for a long time, although it was not till we added a regression test case covering the behavior (in commit dd2243f2a) that the problem became apparent. Back-patch to all supported versions. Discussion: https://postgr.es/m/50562fdc-0876-9843-c883-15b8566c7511@2ndquadrant.com
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.