http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39246
--- Comment #36 from jye2 at gcc dot gnu.org --- Author: jye2 Date: Thu May 8 01:20:17 2014 New Revision: 210199 URL: http://gcc.gnu.org/viewcvs?rev=210199&root=gcc&view=rev Log: 2014-05-07 Thomas Preud'homme <thomas.preudho...@arm.com> PR middle-end/39246 * tree-complex.c (expand_complex_move): Keep line info when expanding complex move. * tree-ssa-uninit.c (warn_uninit): New argument. Ignore assignment of complex expression. Use new argument to display correct location for values coming from phi statement. (warn_uninitialized_vars): Adapt to new signature of warn_uninit. (warn_uninitialized_phi): Pass location of phi argument to warn_uninit. * tree-ssa.c (ssa_undefined_value_p): For SSA_NAME initialized by a COMPLEX_EXPR, recurse on each part of the COMPLEX_EXPR. testsuite: * gcc.dg/uninit-13.c: Move warning on the actual source line where the uninitialized complex is used. * gcc.dg/uninit-17.c: New test to check partial initialization of complex with branches. * gcc.dg/uninit-17-O0.c: Likewise. Modified: trunk/gcc/testsuite/gcc.dg/uninit-13.c trunk/gcc/tree-complex.c trunk/gcc/tree-ssa-uninit.c trunk/gcc/tree-ssa.c