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re PR tree-optimization/33562 (aggregate DSE disabled)

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PR tree-optimization/33562
	PR tree-optimization/61912
	PR tree-optimization/77485
	* tree-ssa-dse.c (delete_dead_call): Accept gsi rather than
	a statement.
	(delete_dead_assignment): Likewise.
	(dse_dom_walker::dse_optimize_stmt): Pass in the gsi rather than
	statement to delete_dead_call and delete_dead_assignment.

From-SVN: r244461
This commit is contained in:
Jeff Law 2017-01-13 23:16:23 -07:00 • committed by Jeff Law
parent a2bd02aecf
commit 1a15be6865
2 changed files with 20 additions and 9 deletions
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11
gcc/ChangeLog
View file

@ -1,3 +1,14 @@
2017-01-13 Jeff Law <law@redhat.com>
PR tree-optimization/33562
PR tree-optimization/61912
PR tree-optimization/77485
* tree-ssa-dse.c (delete_dead_call): Accept gsi rather than
a statement.
(delete_dead_assignment): Likewise.
(dse_dom_walker::dse_optimize_stmt): Pass in the gsi rather than
statement to delete_dead_call and delete_dead_assignment.
2017-01-13 David Malcolm <dmalcolm@redhat.com>
PR c/78304

18
gcc/tree-ssa-dse.c
View file

@ -602,8 +602,9 @@ private:
/* Delete a dead call STMT, which is mem* call of some kind. */
static void
delete_dead_call (gimple *stmt)
delete_dead_call (gimple_stmt_iterator *gsi)
{
gimple *stmt = gsi_stmt (*gsi);
if (dump_file && (dump_flags & TDF_DETAILS))
{
fprintf (dump_file, " Deleted dead call: ");
@ -612,13 +613,12 @@ delete_dead_call (gimple *stmt)
}
tree lhs = gimple_call_lhs (stmt);
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
if (lhs)
{
tree ptr = gimple_call_arg (stmt, 0);
gimple *new_stmt = gimple_build_assign (lhs, ptr);
unlink_stmt_vdef (stmt);
if (gsi_replace (&gsi, new_stmt, true))
if (gsi_replace (gsi, new_stmt, true))
bitmap_set_bit (need_eh_cleanup, gimple_bb (stmt)->index);
}
else
@ -627,7 +627,7 @@ delete_dead_call (gimple *stmt)
unlink_stmt_vdef (stmt);
/* Remove the dead store. */
if (gsi_remove (&gsi, true))
if (gsi_remove (gsi, true))
bitmap_set_bit (need_eh_cleanup, gimple_bb (stmt)->index);
release_defs (stmt);
}
@ -636,8 +636,9 @@ delete_dead_call (gimple *stmt)
/* Delete a dead store STMT, which is a gimple assignment. */
static void
delete_dead_assignment (gimple *stmt)
delete_dead_assignment (gimple_stmt_iterator *gsi)
{
gimple *stmt = gsi_stmt (*gsi);
if (dump_file && (dump_flags & TDF_DETAILS))
{
fprintf (dump_file, " Deleted dead store: ");
@ -649,9 +650,8 @@ delete_dead_assignment (gimple *stmt)
unlink_stmt_vdef (stmt);
/* Remove the dead store. */
gimple_stmt_iterator gsi = gsi_for_stmt (stmt);
basic_block bb = gimple_bb (stmt);
if (gsi_remove (&gsi, true))
if (gsi_remove (gsi, true))
bitmap_set_bit (need_eh_cleanup, bb->index);
/* And release any SSA_NAMEs set in this statement back to the
@ -717,7 +717,7 @@ dse_dom_walker::dse_optimize_stmt (gimple_stmt_iterator *gsi)
}
if (store_status == DSE_STORE_DEAD)
delete_dead_call (stmt);
delete_dead_call (gsi);
return;
}
@ -760,7 +760,7 @@ dse_dom_walker::dse_optimize_stmt (gimple_stmt_iterator *gsi)
&& !gimple_clobber_p (use_stmt))
return;
delete_dead_assignment (stmt);
delete_dead_assignment (gsi);
}
}