[Bug middle-end/51994] [4.6/4.7 Regression] git-1.7.8.3 miscompiled due to negative bitpos from get_inner_reference

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51994

--- Comment #37 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-02-07 
17:24:32 UTC ---
Author: ebotcazou
Date: Tue Feb  7 17:24:27 2012
New Revision: 183975

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183975
Log:
    PR middle-end/51994
    * expr.c (get_inner_reference): If there is an offset, add a negative
    bit position to it (if any).

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.c-torture/execute/20120207-1.c
      - copied unchanged from r183974,
trunk/gcc/testsuite/gcc.c-torture/execute/20120207-1.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/expr.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog