r109703 - in /trunk/gcc: ChangeLog Makefile.in ...

[rguenth at gcc dot gnu dot org]

Author: rguenth
Date: Sat Jan 14 14:30:33 2006
New Revision: 109703

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109703
Log:
2006-01-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/22548
	PR tree-optimization/22555
	PR tree-optimization/22501
	* Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
	* params.def (salias-max-array-elements): New parameter.
	* params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
	* doc/invoke.texi (salias-max-array-elements): Document.
	* tree-flow-inline.h (var_can_have_subvars): We also handle
	arrays now.
	* tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
	COMPONENT_REF.
	* tree-ssa-structalias.c (params.h): Include.
	(push_fields_onto_fieldstack): Handle ARRAY_TYPE.
	(find_func_aliases): Handle multiple constraints from ARRAY_REF.
	(get_constraint_for): For ADDR_EXPR operating on something
	containing an ARRAY_REF, add all subvars to the solution.
	(handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
	* tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
	for creating MUST_DEFs.
	(get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.

	* gcc.dg/tree-ssa/alias-4.c: New testcase.
	* gcc.dg/tree-ssa/alias-5.c: Likewise.
	* gcc.dg/tree-ssa/alias-6.c: Likewise.
	* gcc.dg/tree-ssa/alias-7.c: Likewise.
	* gcc.dg/tree-ssa/alias-8.c: Likewise.
	* gcc.dg/tree-ssa/alias-9.c: Likewise.
	* gcc.dg/tree-ssa/alias-10.c: Likewise.
	* gcc.dg/tree-ssa/alias-11.c: Likewise.
	* gcc.dg/tree-ssa/alias-12.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-10.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-11.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-12.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-4.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-5.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-6.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-7.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-8.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-9.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/doc/invoke.texi
    trunk/gcc/params.def
    trunk/gcc/params.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-flow-inline.h
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-operands.c
    trunk/gcc/tree-ssa-structalias.c