[Bug debug/48204] [4.5/4.6/4.7 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 #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-24 
18:59:02 UTC ---
Author: jakub
Date: Thu Mar 24 18:58:58 2011
New Revision: 171423

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171423
Log:
    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:
    trunk/gcc/testsuite/gcc.dg/dfp/pr48204.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/simplify-rtx.c
    trunk/gcc/testsuite/ChangeLog