[Bug middle-end/52209] [4.7 Regression] wrong code at -O0

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52209

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-13 
10:37:41 UTC ---
Author: jakub
Date: Mon Feb 13 10:37:35 2012
New Revision: 184151

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184151
Log:
    PR middle-end/52209
    * expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
    XOR for reduce_bit_field if type is unsigned.

    * gcc.c-torture/execute/pr52209.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr52209.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expr.c
    trunk/gcc/testsuite/ChangeLog