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tree-ssa-propagate.c (stmt_makes_single_load): Remove.

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* tree-ssa-propagate.c (stmt_makes_single_load): Remove.
	* tree-ssa-propagate.h: Remove the prototype for
	stmt_makes_single_load.

From-SVN: r146213
This commit is contained in:
Kazu Hirata 2009-04-16 18:48:16 +00:00 committed by Kazu Hirata
parent 43dd320186
commit 78fe4f1fab
3 changed files with 6 additions and 31 deletions

6
gcc/ChangeLog

@ -1,3 +1,9 @@
2009-04-16 Kazu Hirata <kazu@codesourcery.com>
* tree-ssa-propagate.c (stmt_makes_single_load): Remove.
* tree-ssa-propagate.h: Remove the prototype for
stmt_makes_single_load.
2009-04-16 Kazu Hirata <kazu@codesourcery.com>
* emit-rtl.c (set_mem_attrs_from_reg): Remove.

30
gcc/tree-ssa-propagate.c

@ -828,36 +828,6 @@ ssa_propagate (ssa_prop_visit_stmt_fn visit_stmt,
}
/* Return true if STMT is of the form 'LHS = mem_ref', where 'mem_ref'
is a non-volatile pointer dereference, a structure reference or a
reference to a single _DECL. Ignore volatile memory references
because they are not interesting for the optimizers. */
bool
stmt_makes_single_load (gimple stmt)
{
tree rhs;
if (gimple_code (stmt) != GIMPLE_ASSIGN)
return false;
/* Only a GIMPLE_SINGLE_RHS assignment may have a
declaration or reference as its RHS. */
if (get_gimple_rhs_class (gimple_assign_rhs_code (stmt))
!= GIMPLE_SINGLE_RHS)
return false;
if (!gimple_vuse (stmt))
return false;
rhs = gimple_assign_rhs1 (stmt);
return (!TREE_THIS_VOLATILE (rhs)
&& (DECL_P (rhs)
|| REFERENCE_CLASS_P (rhs)));
}
/* Return true if STMT is of the form 'mem_ref = RHS', where 'mem_ref'
is a non-volatile pointer dereference, a structure reference or a
reference to a single _DECL. Ignore volatile memory references

1
gcc/tree-ssa-propagate.h

@ -118,7 +118,6 @@ bool valid_gimple_rhs_p (tree);
bool valid_gimple_call_p (tree);
void move_ssa_defining_stmt_for_defs (gimple, gimple);
bool update_call_from_tree (gimple_stmt_iterator *, tree);
bool stmt_makes_single_load (gimple);
bool stmt_makes_single_store (gimple);
bool substitute_and_fold (prop_value_t *, bool);