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r148718 - in /trunk/gcc: ChangeLog testsuite/Ch...
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 19 Jun 2009 16:47:36 -0000
- Subject: r148718 - in /trunk/gcc: ChangeLog testsuite/Ch...
Author: rguenth
Date: Fri Jun 19 16:47:35 2009
New Revision: 148718
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=148718
Log:
2009-06-19 Richard Guenther <rguenther@suse.de>
* tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Handle
ADDR_EXPR pointers.
(ptr_derefs_may_alias_p): Likewise.
(ptr_deref_may_alias_ref_p_1): New function.
(ptr_deref_may_alias_ref_p): Likewise.
(ref_maybe_used_by_call_p_1): Handle builtins that are not
covered by looking at the ESCAPED solution.
(call_may_clobber_ref_p_1): Likewise.
* tree-ssa-structalias.c (get_constraint_for_ptr_offset):
Handle NULL_TREE offset. Do not produce redundant constraints.
(process_all_all_constraints): New helper function.
(do_structure_copy): Use it.
(handle_lhs_call): Likewise.
(find_func_aliases): Handle some builtins with pointer arguments
and/or return values explicitly.
* gcc.c-torture/execute/20090618-1.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/20090618-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-alias.c
trunk/gcc/tree-ssa-structalias.c