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* tree-flow-inline.h (op_iter_next_must_and_may_def): New.
authorlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 26 Apr 2005 17:37:33 +0000 (17:37 +0000)
committerlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 26 Apr 2005 17:37:33 +0000 (17:37 +0000)
commitfb0c974d0fe4f065e1d8d328c9c3965e9b8db553
tree0d7eb68bfe51ab28e40b7b4005702e4ca1a156ff
parentbe70590f5139813bebb6cea275d56bdf0d361182
* tree-flow-inline.h (op_iter_next_must_and_may_def): New.
(op_iter_init_must_and_may_def): Likewise.
(unmodifiable_var_p): Move to a later point in the file.
* tree-ssa-operands.h (FOR_EACH_SSA_MUST_AND_MAY_DEF_OPERAND): New.
* tree-ssa-dse.c (need_imm_uses_for): Remove, no longer needed.
(dse_record_phis): Directly check for virtual operands rather than
using need_imm_uses_for.
(dse_optimize_stmt): Handle V_MUST_DEF operands.  Handle case where
store has multiple V_{MAY,MUST}_DEF operands.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@98780 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/tree-flow-inline.h
gcc/tree-ssa-dse.c
gcc/tree-ssa-operands.h