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tree-ssa-operands.c (add_call_clobber_ops): Fix unused variable warning with code disable.

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* tree-ssa-operands.c (add_call_clobber_ops): Fix unused variable
        warning with code disable.  Fix formatting.

From-SVN: r87567
This commit is contained in:
Richard Henderson 2004-09-15 15:05:39 -07:00 committed by Richard Henderson
parent c7f9021961
commit e776368b7a
2 changed files with 36 additions and 37 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-09-15 Richard Henderson <rth@redhat.com>
* tree-ssa-operands.c (add_call_clobber_ops): Fix unused variable
warning with code disable. Fix formatting.
2004-09-15 Steven Bosscher <stevenb@suse.de>
* Makefile.in (tree-ssa-dom.o): Depend on tree-ssa-propagate.h.

68
gcc/tree-ssa-operands.c
View File

@ -1581,58 +1581,52 @@ add_call_clobber_ops (tree stmt, tree callee)
else
{
size_t i;
bitmap not_read_b = NULL, not_written_b = NULL;
/* Get info for module level statics. There is a bit set for
each static if the call being processed does not read or
write that variable. */
/* hack to turn off the optimization until I can get the bug fixed. */
/* bitmap not_read_b = callee
? get_global_statics_not_read (callee) : NULL;
bitmap not_written_b = callee
? get_global_statics_not_written (callee) : NULL;
*/
bitmap not_read_b = NULL;
bitmap not_written_b = NULL;
/* ??? Turn off the optimization until it gets fixed. */
if (0 && callee)
{
not_read_b = get_global_statics_not_read (callee);
not_written_b = get_global_statics_not_written (callee);
}
EXECUTE_IF_SET_IN_BITMAP (call_clobbered_vars, 0, i,
{
tree var = referenced_var (i);
bool not_read = not_read_b
? bitmap_bit_p(not_read_b, i) : false;
bool not_written = not_written_b
? bitmap_bit_p(not_written_b, i) : false;
bool not_read
= not_read_b ? bitmap_bit_p (not_read_b, i) : false;
bool not_written
= not_written_b ? bitmap_bit_p (not_written_b, i) : false;
if (not_read)
{ /* The var is not read during the call. */
if (not_written)
{
/* Nothing. */
}
else
if (not_read)
{
/* The var is not read during the call. */
if (!not_written)
add_stmt_operand (&var, stmt, opf_is_def);
}
}
else
{ /* The var is read during the call. */
{
/* The var is read during the call. */
if (not_written)
add_stmt_operand (&var, stmt, opf_none);
else
/* The not_read and not_written bits are only set
for module static variables. Neither is set
here, so we may be dealing with a module static
or we may not. So we still must look anywhere
else we can (such as the TREE_READONLY) to get
better info. */
/* If VAR is read-only, don't add a V_MAY_DEF, just a
VUSE operand. */
if (TREE_READONLY (var))
add_stmt_operand (&var, stmt, opf_none);
else
add_stmt_operand (&var, stmt, opf_is_def);
}
/* The not_read and not_written bits are only set for module
static variables. Neither is set here, so we may be dealing
with a module static or we may not. So we still must look
anywhere else we can (such as the TREE_READONLY) to get
better info. */
/* If VAR is read-only, don't add a V_MAY_DEF, just a
VUSE operand. */
else if (TREE_READONLY (var))
add_stmt_operand (&var, stmt, opf_none);
else
add_stmt_operand (&var, stmt, opf_is_def);
}
});
}
}