[Bug debug/48204] [4.5/4.6 Regression] ICE: in decimal_to_decnumber, at dfp.c:115 with -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-fre -g

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48204

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-26 09:24:08 UTC ---
Author: jakub
Date: Sat Mar 26 09:24:06 2011
New Revision: 171549

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171549
Log:
    Backport from mainline
    2011-03-24  Jakub Jelinek  <jakub@redhat.com>

    PR debug/48204
    * simplify-rtx.c (simplify_const_unary_operation): Call
    real_convert when changing mode class with FLOAT_EXTEND.

    * gcc.dg/dfp/pr48204.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.dg/dfp/pr48204.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/simplify-rtx.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog