After clarification about the C standard, POSIX, and implementations: The C standard allows errno-setting, and it's (unfortunately for optimization) even more clearly stated in the newer additions to the standards. We can leave these functions as always constant ('c') because they don't actually do any math and therefore won't set errno: cimag ( http://en.cppreference.com/w/c/numeric/complex/cimag ) creal ( http://en.cppreference.com/w/c/numeric/complex/creal ) cproj ( http://en.cppreference.com/w/c/numeric/complex/cproj ) conj (http://en.cppreference.com/w/c/numeric/complex/conj ) Differential Revision: https://reviews.llvm.org/D39611 llvm-svn: 318598
The files are already large, and we may need to add even more RUNs to distinguish differences based on OS, environment, or other platform things. llvm-svn: 317583