[Bug tree-optimization/46985] [4.5 Regression] ICE: SIGSEGV in is_gimple_min_invariant (gimple.c:2742) with -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-fre

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46985

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-20 13:56:01 UTC ---
Author: rguenth
Date: Wed Jun 20 13:55:44 2012
New Revision: 188834

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188834
Log:
2012-06-20  Richard Guenther  <rguenther@suse.de>

    Backport from mainline
    2010-12-18  Jakub Jelinek  <jakub@redhat.com>

    PR tree-optimization/46985
    * tree-scalar-evolution.c (instantiate_scev_r): If chrec is NULL,
    return it immediately.

    * gfortran.dg/pr46985.f90: New test.

    2011-02-18  Jakub Jelinek  <jakub@redhat.com>

    PR debug/47780
    * cfgexpand.c (expand_debug_expr) <case SSA_NAME>: Call copy_rtx to
    avoid invalid rtx sharing.

    * gcc.target/i386/pr47780.c: New test.

    2011-02-27  Jakub Jelinek  <jakub@redhat.com>

    PR middle-end/47903
    * real.c (real_arithmetic) <case PLUS_EXPR, MINUS_EXPR,
    MULT_EXPR, RDIV_EXPR>: Clear padding bits in *r first if
    r isn't op0 nor op1.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/pr47780.c
    branches/gcc-4_5-branch/gcc/testsuite/gfortran.dg/pr46985.f90
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/cfgexpand.c
    branches/gcc-4_5-branch/gcc/real.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-scalar-evolution.c