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tree-into-ssa.c (compute_global_livein): Use EXECUTE_IF_SET_IN_BITMAP rather than iterating through the blocks testing...

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* tree-into-ssa.c (compute_global_livein): Use EXECUTE_IF_SET_IN_BITMAP
        rather than iterating through the blocks testing each bit in
        livein to initialize the worklist.
        (mark_def_sites): Remove useless checks of KILLS for virtual
        operands.

From-SVN: r81811
This commit is contained in:
Jeff Law 2004-05-13 16:46:19 -06:00 committed by Jeff Law
parent 0e7b565cbf
commit 6c875a31e1
2 changed files with 12 additions and 9 deletions
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6
gcc/ChangeLog
View File

@ -13,6 +13,12 @@
2004-05-13 Jeff Law <law@redhat.com>
* tree-into-ssa.c (compute_global_livein): Use EXECUTE_IF_SET_IN_BITMAP
rather than iterating through the blocks testing each bit in
livein to initialize the worklist.
(mark_def_sites): Remove useless checks of KILLS for virtual
operands.
* tree-ssa-forwprop.c (record_single_argument_cond_exprs): Accept
new parameters for the statement and variable worklist as well
as a bitmap of interesting SSA_NAMEs. Walk over the statement

15
gcc/tree-into-ssa.c
View File

@ -136,16 +136,15 @@ static void
compute_global_livein (bitmap livein, bitmap def_blocks)
{
basic_block bb, *worklist, *tos;
int i;
tos = worklist
= (basic_block *) xmalloc (sizeof (basic_block) * (last_basic_block + 1));
/* Initialize the worklist. */
FOR_EACH_BB (bb)
EXECUTE_IF_SET_IN_BITMAP (livein, 0, i,
{
if (bitmap_bit_p (livein, bb->index))
*tos++ = bb;
}
*tos++ = BASIC_BLOCK (i);
});
/* Iterate until the worklist is empty. */
while (tos != worklist)
@ -244,8 +243,7 @@ mark_def_sites (struct dom_walk_data *walk_data,
{
tree *use_p = VUSE_OP_PTR (vuses, i);
if (prepare_operand_for_rename (use_p, &uid)
&& !TEST_BIT (kills, uid))
if (prepare_operand_for_rename (use_p, &uid))
set_livein_block (*use_p, bb);
}
@ -264,8 +262,7 @@ mark_def_sites (struct dom_walk_data *walk_data,
{
VDEF_RESULT (vdefs, i) = VDEF_OP (vdefs, i);
if (!TEST_BIT (kills, uid))
set_livein_block (VDEF_OP (vdefs, i), bb);
set_livein_block (VDEF_OP (vdefs, i), bb);
set_def_block (VDEF_RESULT (vdefs, i), bb);
}
}