[Bug rtl-optimization/47337] [4.6 Regression] Wrong RTL dce of calls

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47337

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-19 
15:13:05 UTC ---
Author: jakub
Date: Wed Jan 19 15:13:01 2011
New Revision: 168997

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168997
Log:
    PR rtl-optimization/47337
    * dce.c (check_argument_store): New function.
    (find_call_stack_args): Ignore debug insns.  Use check_argument_store.

    * gcc.c-torture/execute/pr47337.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr47337.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dce.c
    trunk/gcc/testsuite/ChangeLog