r210199 - in /trunk/gcc: testsuite/gcc.dg/unini...

[jye2@gcc.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.preudhomme@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