[Bug tree-optimization/44485] [4.6 Regression] ICE in get_expr_operands, at tree-ssa-operands.c:1020

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2010-08-26 16:39 -------
Subject: Bug 44485

Author: jakub
Date: Thu Aug 26 16:39:26 2010
New Revision: 163568

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163568
Log:
        PR tree-optimization/44485
        * calls.c (flags_from_decl_or_type): For const or pure
        noreturn functions return ECF_LOOPING_CONST_OR_PURE|ECF_NORETURN
        together with ECF_CONST resp. ECF_PURE.
        * builtins.c (expand_builtin): Use flags_from_decl_or_type
        instead of querying flags directly.
        * tree-ssa-loop-niter.c (finite_loop_p): Likewise.
        * tree-ssa-dce.c (find_obviously_necessary_stmts): Likewise.

        * gcc.dg/pr44485.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr44485.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/calls.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-dce.c
    trunk/gcc/tree-ssa-loop-niter.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44485