The following issue has been SUBMITTED. ====================================================================== http://public.kitware.com/Bug/view.php?id=13469 ====================================================================== Reported By: Stefan Eilemann Assigned To: ====================================================================== Project: CMake Issue ID: 13469 Category: CMake Reproducibility: always Severity: major Priority: normal Status: new ====================================================================== Date Submitted: 2012-08-14 05:28 EDT Last Modified: 2012-08-14 05:28 EDT ====================================================================== Summary: OpenMP flags enable IPA optimization for IBM xlC compiler Description: FindOpenMP sets '-qsmp' which turns on IPA, even in debug builds where it is extremely inconvenient.
Our temporary workaround is to switch it off again: https://github.com/Eyescale/CMake/commit/fbe0c8a87a1ba5fe683beeb697ecebaab26fd730 I'm new to xlC, but '-qsmp=noomp' looks better? Steps to Reproduce: Compile simple test program in debug with: find_package(OpenMP REQUIRED) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") And observer ipa process running, or examine optimized program in debugger. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2012-08-14 05:28 Stefan EilemannNew Issue ====================================================================== -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
