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* varasm.c (struct deferred_constant, defer_addressed_constants_flag)

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(defer_addressed_constants, output_deferred_addressed_constants): Kill.
	(output_constant_def): Remove code predicated on
	defer_addressed_constants_flag.

	* output.h: Remove prototypes of deleted functions.
	* c-typeck.c (constructor_subconstants_deferred): Kill.
	(struct initializer_stack): Remove 'deferred' field.
	(start_init): Remove all references to the above.
	(finish_init): Likewise. Also remove never-executed call to
	output_deferred_addressed_constants.  Pull assignment to
	defstr out of if expression.

From-SVN: r65865
This commit is contained in:
Zack Weinberg 2003-04-20 22:43:59 +00:00 committed by Zack Weinberg
parent 6f9106c2ec
commit b20cbca237
4 changed files with 36 additions and 108 deletions
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15
gcc/ChangeLog
View File

@ -1,3 +1,18 @@
2003-04-20 Zack Weinberg <zack@codesourcery.com>
* varasm.c (struct deferred_constant, defer_addressed_constants_flag)
(defer_addressed_constants, output_deferred_addressed_constants): Kill.
(output_constant_def): Remove code predicated on
defer_addressed_constants_flag.
* output.h: Remove prototypes of deleted functions.
* c-typeck.c (constructor_subconstants_deferred): Kill.
(struct initializer_stack): Remove 'deferred' field.
(start_init): Remove all references to the above.
(finish_init): Likewise. Also remove never-executed call to
output_deferred_addressed_constants. Pull assignment to
defstr out of if expression.
2003-04-20 Neil Booth <neil@daikokuya.co.uk>
* cpphash.h (NOTE_ESC_NL, NOTE_ESC_SPACE_NL, NOTE_TRIGRAPH,

13
gcc/c-typeck.c
View File

@ -4931,9 +4931,6 @@ static int constructor_simple;
/* 1 if this constructor is erroneous so far. */
static int constructor_erroneous;
/* 1 if have called defer_addressed_constants. */
static int constructor_subconstants_deferred;
/* Structure for managing pending initializer elements, organized as an
AVL tree. */
@ -5051,7 +5048,6 @@ struct initializer_stack
char top_level;
char require_constant_value;
char require_constant_elements;
char deferred;
};
struct initializer_stack *initializer_stack;
@ -5082,14 +5078,12 @@ start_init (decl, asmspec_tree, top_level)
p->spelling = spelling;
p->spelling_base = spelling_base;
p->spelling_size = spelling_size;
p->deferred = constructor_subconstants_deferred;
p->top_level = constructor_top_level;
p->next = initializer_stack;
initializer_stack = p;
constructor_decl = decl;
constructor_asmspec = asmspec;
constructor_subconstants_deferred = 0;
constructor_designated = 0;
constructor_top_level = top_level;
@ -5131,12 +5125,6 @@ finish_init ()
{
struct initializer_stack *p = initializer_stack;
/* Output subconstants (string constants, usually)
that were referenced within this initializer and saved up.
Must do this if and only if we called defer_addressed_constants. */
if (constructor_subconstants_deferred)
output_deferred_addressed_constants ();
/* Free the whole constructor stack of this initializer. */
while (constructor_stack)
{
@ -5159,7 +5147,6 @@ finish_init ()
spelling = p->spelling;
spelling_base = p->spelling_base;
spelling_size = p->spelling_size;
constructor_subconstants_deferred = p->deferred;
constructor_top_level = p->top_level;
initializer_stack = p->next;
free (p);

7
gcc/output.h
View File

@ -334,13 +334,6 @@ extern void assemble_real PARAMS ((REAL_VALUE_TYPE,
unsigned));
#endif
/* Start deferring output of subconstants. */
extern void defer_addressed_constants PARAMS ((void));
/* Stop deferring output of subconstants,
and output now all those that have been deferred. */
extern void output_deferred_addressed_constants PARAMS ((void));
/* Return the size of the constant pool. */
extern int get_pool_size PARAMS ((void));

109
gcc/varasm.c
View File

@ -2465,54 +2465,6 @@ compare_constant (t1, t2)
abort ();
}
/* Record a list of constant expressions that were passed to
output_constant_def but that could not be output right away. */
struct deferred_constant
{
struct deferred_constant *next;
tree exp;
int reloc;
int labelno;
};
static struct deferred_constant *deferred_constants;
/* Nonzero means defer output of addressed subconstants
(i.e., those for which output_constant_def is called.) */
static int defer_addressed_constants_flag;
/* Start deferring output of subconstants. */
void
defer_addressed_constants ()
{
defer_addressed_constants_flag++;
}
/* Stop deferring output of subconstants,
and output now all those that have been deferred. */
void
output_deferred_addressed_constants ()
{
struct deferred_constant *p, *next;
defer_addressed_constants_flag--;
if (defer_addressed_constants_flag > 0)
return;
for (p = deferred_constants; p; p = next)
{
output_constant_def_contents (p->exp, p->reloc, p->labelno);
next = p->next;
free (p);
}
deferred_constants = 0;
}
/* Make a copy of the whole tree structure for a constant. This
handles the same types of nodes that compare_constant handles. */
@ -2586,7 +2538,7 @@ copy_constant (exp)
If assembler code for such a constant has already been output,
return an rtx to refer to it.
Otherwise, output such a constant in memory (or defer it for later)
Otherwise, output such a constant in memory
and generate an rtx for it.
If DEFER is nonzero, the output of string constants can be deferred
@ -2680,9 +2632,7 @@ output_constant_def (exp, defer)
desc->label = XSTR (XEXP (desc->rtl, 0), 0);
}
if (found
&& STRING_POOL_ADDRESS_P (XEXP (rtl, 0))
&& (!defer || defer_addressed_constants_flag))
if (found && !defer && STRING_POOL_ADDRESS_P (XEXP (rtl, 0)))
{
defstr = (struct deferred_string **)
htab_find_slot_with_hash (const_str_htab, desc->label,
@ -2699,48 +2649,31 @@ output_constant_def (exp, defer)
}
/* If this is the first time we've seen this particular constant,
output it (or defer its output for later). */
if (! found)
output it. Do no output if -fsyntax-only. */
if (! found && ! flag_syntax_only)
{
if (defer_addressed_constants_flag)
{
struct deferred_constant *p
= (struct deferred_constant *)
xmalloc (sizeof (struct deferred_constant));
p->exp = desc->value;
p->reloc = reloc;
p->labelno = labelno;
p->next = deferred_constants;
deferred_constants = p;
}
if (!defer || TREE_CODE (exp) != STRING_CST
|| flag_writable_strings)
output_constant_def_contents (exp, reloc, labelno);
else
{
/* Do no output if -fsyntax-only. */
if (! flag_syntax_only)
defstr = (struct deferred_string **)
htab_find_slot_with_hash (const_str_htab, desc->label,
STRHASH (desc->label), INSERT);
if (!defstr)
output_constant_def_contents (exp, reloc, labelno);
else
{
if (TREE_CODE (exp) != STRING_CST
|| !defer
|| flag_writable_strings
|| (defstr = (struct deferred_string **)
htab_find_slot_with_hash (const_str_htab,
desc->label,
STRHASH (desc->label),
INSERT)) == NULL)
output_constant_def_contents (exp, reloc, labelno);
else
{
struct deferred_string *p;
struct deferred_string *p;
p = (struct deferred_string *)
ggc_alloc (sizeof (struct deferred_string));
p = (struct deferred_string *)
ggc_alloc (sizeof (struct deferred_string));
p->exp = desc->value;
p->label = desc->label;
p->labelno = labelno;
*defstr = p;
STRING_POOL_ADDRESS_P (XEXP (rtl, 0)) = 1;
}
p->exp = desc->value;
p->label = desc->label;
p->labelno = labelno;
*defstr = p;
STRING_POOL_ADDRESS_P (XEXP (rtl, 0)) = 1;
}
}
}