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Makefile.in (tree-ssa-dom.o): Depend on tree-ssa-propagate.h.

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* Makefile.in (tree-ssa-dom.o): Depend on tree-ssa-propagate.h.
	* tree-ssa-dom.c (cprop_into_stmt): Recompute TREE_INVARIANT
	after propagating into an ADDR_EXPR.

From-SVN: r87566
This commit is contained in:
Steven Bosscher 2004-09-15 21:47:45 +00:00 • committed by Steven Bosscher
parent 2f021b673a
commit c7f9021961
3 changed files with 17 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-09-15 Steven Bosscher <stevenb@suse.de>
* Makefile.in (tree-ssa-dom.o): Depend on tree-ssa-propagate.h.
* tree-ssa-dom.c (cprop_into_stmt): Recompute TREE_INVARIANT
after propagating into an ADDR_EXPR.
2004-09-15 Andrew Pinski <apinski@apple.com>
PR rtl-opt/17427

3
gcc/Makefile.in
View file

@ -1636,7 +1636,8 @@ tree-ssa-propagate.o : tree-ssa-propagate.c $(TREE_FLOW_H) $(CONFIG_H) \
tree-ssa-dom.o : tree-ssa-dom.c $(TREE_FLOW_H) $(CONFIG_H) $(SYSTEM_H) \
$(RTL_H) $(TREE_H) $(TM_P_H) $(EXPR_H) $(GGC_H) output.h diagnostic.h \
errors.h function.h $(TIMEVAR_H) $(TM_H) coretypes.h $(TREE_DUMP_H) \
$(BASIC_BLOCK_H) domwalk.h real.h tree-pass.h $(FLAGS_H) langhooks.h
$(BASIC_BLOCK_H) domwalk.h real.h tree-pass.h $(FLAGS_H) langhooks.h \
tree-ssa-propagate.h
tree-ssa-threadupdate.o : tree-ssa-threadupdate.c $(TREE_FLOW_H) $(CONFIG_H) \
$(SYSTEM_H) $(RTL_H) $(TREE_H) $(TM_P_H) $(EXPR_H) $(GGC_H) output.h \
diagnostic.h errors.h function.h $(TM_H) coretypes.h $(TREE_DUMP_H) \

9
gcc/tree-ssa-dom.c
View file

@ -40,6 +40,7 @@ Boston, MA 02111-1307, USA. */
#include "domwalk.h"
#include "real.h"
#include "tree-pass.h"
#include "tree-ssa-propagate.h"
#include "langhooks.h"
/* This file implements optimizations on the dominator tree. */
@ -2646,6 +2647,7 @@ cprop_into_stmt (tree stmt, varray_type const_and_copies)
bool may_have_exposed_new_symbols = false;
use_operand_p op_p;
ssa_op_iter iter;
tree rhs;
FOR_EACH_SSA_USE_OPERAND (op_p, stmt, iter, SSA_OP_ALL_USES)
{
@ -2654,6 +2656,13 @@ cprop_into_stmt (tree stmt, varray_type const_and_copies)
|= cprop_operand (stmt, op_p, const_and_copies);
}
if (may_have_exposed_new_symbols)
{
rhs = get_rhs (stmt);
if (rhs && TREE_CODE (rhs) == ADDR_EXPR)
recompute_tree_invarant_for_addr_expr (rhs);
}
return may_have_exposed_new_symbols;
}