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builtins.c (expand_builtin_memmove): Delete duplicate code and accept a tree type for the result. 

* builtins.c (expand_builtin_memmove): Delete duplicate code
	and accept a tree type for the result.
	(expand_builtin_bcopy): Accept a tree type for the result.
	(fold_builtin_memmove): Accept an arglist and tree type for
	the result.

From-SVN: r88563
This commit is contained in:
Kaveh R. Ghazi 2004-10-05 17:10:42 +00:00 committed by Kaveh Ghazi
parent 5544148e92
commit fdd5d9e2ec
2 changed files with 25 additions and 29 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2004-10-05 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* builtins.c (expand_builtin_memmove): Delete duplicate code
and accept a tree type for the result.
(expand_builtin_bcopy): Accept a tree type for the result.
(fold_builtin_memmove): Accept an arglist and tree type for
the result.
2004-10-05 Ulrich Weigand <uweigand@de.ibm.com>
* config/s390/s390.c (s390_dump_pool): Remove return value.

46
gcc/builtins.c
View File

@ -113,8 +113,8 @@ static rtx expand_builtin_strspn (tree, rtx, enum machine_mode);
static rtx expand_builtin_strcspn (tree, rtx, enum machine_mode);
static rtx expand_builtin_memcpy (tree, rtx, enum machine_mode);
static rtx expand_builtin_mempcpy (tree, rtx, enum machine_mode, int);
static rtx expand_builtin_memmove (tree, rtx, enum machine_mode);
static rtx expand_builtin_bcopy (tree);
static rtx expand_builtin_memmove (tree, tree, rtx, enum machine_mode);
static rtx expand_builtin_bcopy (tree, tree);
static rtx expand_builtin_strcpy (tree, rtx, enum machine_mode);
static rtx expand_builtin_stpcpy (tree, rtx, enum machine_mode);
static rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, enum machine_mode);
@ -163,7 +163,7 @@ static tree fold_builtin_round (tree);
static tree fold_builtin_bitop (tree);
static tree fold_builtin_memcpy (tree);
static tree fold_builtin_mempcpy (tree);
static tree fold_builtin_memmove (tree);
static tree fold_builtin_memmove (tree, tree);
static tree fold_builtin_strchr (tree);
static tree fold_builtin_memcmp (tree);
static tree fold_builtin_strcmp (tree);
@ -2735,7 +2735,8 @@ expand_builtin_mempcpy (tree arglist, rtx target, enum machine_mode mode,
if we failed the caller should emit a normal call. */
static rtx
expand_builtin_memmove (tree arglist, rtx target, enum machine_mode mode)
expand_builtin_memmove (tree arglist, tree type, rtx target,
enum machine_mode mode)
{
if (!validate_arglist (arglist,
POINTER_TYPE, POINTER_TYPE, INTEGER_TYPE, VOID_TYPE))
@ -2749,27 +2750,15 @@ expand_builtin_memmove (tree arglist, rtx target, enum machine_mode mode)
unsigned int src_align = get_pointer_alignment (src, BIGGEST_ALIGNMENT);
unsigned int dest_align
= get_pointer_alignment (dest, BIGGEST_ALIGNMENT);
tree result = fold_builtin_memmove (arglist, type);
if (result)
expand_expr (result, target, mode, EXPAND_NORMAL);
/* If DEST is not a pointer type, call the normal function. */
if (dest_align == 0)
return 0;
/* If the LEN parameter is zero, return DEST. */
if (integer_zerop (len))
{
/* Evaluate and ignore SRC in case it has side-effects. */
expand_expr (src, const0_rtx, VOIDmode, EXPAND_NORMAL);
return expand_expr (dest, target, mode, EXPAND_NORMAL);
}
/* If SRC and DEST are the same (and not volatile), return DEST. */
if (operand_equal_p (src, dest, 0))
{
/* Evaluate and ignore LEN in case it has side-effects. */
expand_expr (len, const0_rtx, VOIDmode, EXPAND_NORMAL);
return expand_expr (dest, target, mode, EXPAND_NORMAL);
}
/* If either SRC is not a pointer type, don't do this
operation in-line. */
if (src_align == 0)
@ -2805,7 +2794,7 @@ expand_builtin_memmove (tree arglist, rtx target, enum machine_mode mode)
if we failed the caller should emit a normal call. */
static rtx
expand_builtin_bcopy (tree arglist)
expand_builtin_bcopy (tree arglist, tree type)
{
tree src, dest, size, newarglist;
@ -2826,7 +2815,7 @@ expand_builtin_bcopy (tree arglist)
newarglist = tree_cons (NULL_TREE, src, newarglist);
newarglist = tree_cons (NULL_TREE, dest, newarglist);
return expand_builtin_memmove (newarglist, const0_rtx, VOIDmode);
return expand_builtin_memmove (newarglist, type, const0_rtx, VOIDmode);
}
#ifndef HAVE_movstr
@ -5491,13 +5480,13 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
break;
case BUILT_IN_MEMMOVE:
target = expand_builtin_memmove (arglist, target, mode);
target = expand_builtin_memmove (arglist, TREE_TYPE (exp), target, mode);
if (target)
return target;
break;
case BUILT_IN_BCOPY:
target = expand_builtin_bcopy (arglist);
target = expand_builtin_bcopy (arglist, TREE_TYPE (exp));
if (target)
return target;
break;
@ -7049,9 +7038,8 @@ fold_builtin_mempcpy (tree exp)
NULL_TREE if no simplification can be made. */
static tree
fold_builtin_memmove (tree exp)
fold_builtin_memmove (tree arglist, tree type)
{
tree arglist = TREE_OPERAND (exp, 1);
tree dest, src, len;
if (!validate_arglist (arglist,
@ -7064,11 +7052,11 @@ fold_builtin_memmove (tree exp)
/* If the LEN parameter is zero, return DEST. */
if (integer_zerop (len))
return omit_one_operand (TREE_TYPE (exp), dest, src);
return omit_one_operand (type, dest, src);
/* If SRC and DEST are the same (and not volatile), return DEST. */
if (operand_equal_p (src, dest, 0))
return omit_one_operand (TREE_TYPE (exp), dest, len);
return omit_one_operand (type, dest, len);
return 0;
}
@ -8014,7 +8002,7 @@ fold_builtin_1 (tree exp, bool ignore)
return fold_builtin_mempcpy (exp);
case BUILT_IN_MEMMOVE:
return fold_builtin_memmove (exp);
return fold_builtin_memmove (arglist, type);
case BUILT_IN_SIGNBIT:
case BUILT_IN_SIGNBITF: