[Bug tree-optimization/39804] [4.5 Regression] internal compiler error: in propagate_necessity, at tree-ssa-dce.c:754

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2009-04-18 13:02 -------
Subject: Bug 39804

Author: rguenth
Date: Sat Apr 18 13:02:00 2009
New Revision: 146314

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=146314
Log:
2009-04-18  Richard Guenther  <rguent...@suse.de>

        PR middle-end/39804
        * tree-ssa-ccp.c (fold_stmt_1): New function factored from ...
        (fold_stmt): ... this and ...
        (fold_stmt_inplace): ... this.
        (fold_stmt_1): Fold references in calls and asms.
        * tree-cfg.c (remove_useless_stmts_cond): Use fold_stmt.

        * gcc.target/i386/pr39804.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr39804.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-cfg.c
    trunk/gcc/tree-ssa-ccp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39804