[Bug middle-end/62103] Incorrect folding of bitfield in a union on big endian targets

[thopre01 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62103

--- Comment #4 from thopre01 at gcc dot gnu.org ---
Author: thopre01
Date: Wed Aug 13 09:37:41 2014
New Revision: 213899

URL: https://gcc.gnu.org/viewcvs?rev=213899&root=gcc&view=rev
Log:
2014-08-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    Backport from mainline
    2014-08-12  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    PR middle-end/62103
    * gimple-fold.c (fold_ctor_reference): Don't fold in presence of
    bitfields, that is when size doesn't match the size of type or the
    size of the constructor.

    gcc/testsuite/
    PR middle-end/62103
    * gcc.c-torture/execute/bitfld-6.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/bitfld-6.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/gimple-fold.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog