[Bug c++/30274] [4.2/4.3 Regression] bool bit-field: wrong increment and decremenet

["mmitchel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #11 from mmitchel at gcc dot gnu dot org  2007-03-11 03:09 -------
Subject: Bug 30274

Author: mmitchel
Date: Sun Mar 11 03:09:32 2007
New Revision: 122814

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122814
Log:
        PR c++/30274
        * cp-tree.h (unlowered_expr_type): New function.
        * typeck.c (is_bitfield_expr_with_lowered_type): Handle
        COMPOUND_EXPR, MODIFY_EXPR, and SAVE_EXPR.
        (unlowered_expr_type): New function.
        (build_unary_op): Disallow predecrements of bool bitfields.
        * call.c (build_conditional_expr): Use unlowered_expr_type.
        * pt.c (type_unification_real): Likewise.
        PR c++/30274
        * g++.dg/expr/bitfield3.C: New test.
        * g++.dg/expr/bitfield4.C: Likewise.
        * g++.dg/expr/bitfield5.C: Likewise.
        * g++.dg/expr/bitfield6.C: Likewise.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/g++.dg/expr/bitfield3.C
    branches/gcc-4_2-branch/gcc/testsuite/g++.dg/expr/bitfield4.C
    branches/gcc-4_2-branch/gcc/testsuite/g++.dg/expr/bitfield5.C
    branches/gcc-4_2-branch/gcc/testsuite/g++.dg/expr/bitfield6.C
Modified:
    branches/gcc-4_2-branch/gcc/cp/ChangeLog
    branches/gcc-4_2-branch/gcc/cp/call.c
    branches/gcc-4_2-branch/gcc/cp/cp-tree.h
    branches/gcc-4_2-branch/gcc/cp/pt.c
    branches/gcc-4_2-branch/gcc/cp/typeck.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30274