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tree-sra.c (duplicate_expr_for_different_base): Removed.

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2009-09-03  Martin Jambor  <mjambor@suse.cz>

	* tree-sra.c (duplicate_expr_for_different_base): Removed.
	(create_artificial_child_access): Use build_ref_for_offset instead
	of duplicate_expr_for_different_base.
	(propagate_subacesses_accross_link): Likewise.

From-SVN: r151394
This commit is contained in:
Martin Jambor 2009-09-03 23:25:00 +02:00 • committed by Martin Jambor
parent 755d55bbe5
commit 687b5078a5
2 changed files with 18 additions and 22 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2009-09-03 Martin Jambor <mjambor@suse.cz>
* tree-sra.c (duplicate_expr_for_different_base): Removed.
(create_artificial_child_access): Use build_ref_for_offset instead
of duplicate_expr_for_different_base.
(propagate_subacesses_accross_link): Likewise.
2009-09-03 Richard Sandiford <rdsandiford@googlemail.com>
* config/mips/mips.c (USEFUL_INSN_P): Use NONDEBUG_INSN_P instead

33
gcc/tree-sra.c
View file

@ -1496,26 +1496,6 @@ child_would_conflict_in_lacc (struct access *lacc, HOST_WIDE_INT norm_offset,
return false;
}
/* Set the expr of TARGET to one just like MODEL but with is own base at the
bottom of the handled components. */
static void
duplicate_expr_for_different_base (struct access *target,
struct access *model)
{
tree t, expr = unshare_expr (model->expr);
gcc_assert (handled_component_p (expr));
t = expr;
while (handled_component_p (TREE_OPERAND (t, 0)))
t = TREE_OPERAND (t, 0);
gcc_assert (TREE_OPERAND (t, 0) == model->base);
TREE_OPERAND (t, 0) = target->base;
target->expr = expr;
}
/* Create a new child access of PARENT, with all properties just like MODEL
except for its offset and with its grp_write false and grp_read true.
Return the new access. Note that this access is created long after all
@ -1528,6 +1508,7 @@ create_artificial_child_access (struct access *parent, struct access *model,
{
struct access *access;
struct access **child;
bool ok;
gcc_assert (!model->grp_unscalarizable_region);
@ -1536,10 +1517,13 @@ create_artificial_child_access (struct access *parent, struct access *model,
access->base = parent->base;
access->offset = new_offset;
access->size = model->size;
duplicate_expr_for_different_base (access, model);
access->type = model->type;
access->grp_write = true;
access->grp_read = false;
access->expr = access->base;
ok = build_ref_for_offset (&access->expr, TREE_TYPE (access->expr),
new_offset, access->type, false);
gcc_assert (ok);
child = &parent->first_child;
while (*child && (*child)->offset < new_offset)
@ -1571,7 +1555,12 @@ propagate_subacesses_accross_link (struct access *lacc, struct access *racc)
if (!lacc->first_child && !racc->first_child
&& is_gimple_reg_type (racc->type))
{
duplicate_expr_for_different_base (lacc, racc);
bool ok;
lacc->expr = lacc->base;
ok = build_ref_for_offset (&lacc->expr, TREE_TYPE (lacc->expr),
lacc->offset, racc->type, false);
gcc_assert (ok);
lacc->type = racc->type;
return false;
}