From 3b7eecca20bcb05e0220b3d012df012902a23534 Mon Sep 17 00:00:00 2001
From: Andrew Pinski <apinski@marvell.com>
Date: Tue, 2 May 2023 00:08:19 -0700
Subject: [PATCH] Add stats to simple_dce_from_worklist
While looking to move substitute_and_fold_engine
over to use simple_dce_from_worklist, I noticed
that we don't record the stats of the removed stmts/phis.
So this does that.
OK? Bootstrapped and tested on x86_64-linux-gnu.
gcc/ChangeLog:
* tree-ssa-dce.cc (simple_dce_from_worklist): Record
stats on removed number of statements and phis.
---
gcc/tree-ssa-dce.cc | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/gcc/tree-ssa-dce.cc b/gcc/tree-ssa-dce.cc
index 1fd88e8ee37c..e4c32e630dfd 100644
--- a/gcc/tree-ssa-dce.cc
+++ b/gcc/tree-ssa-dce.cc
@@ -2099,6 +2099,8 @@ make_pass_cd_dce (gcc::context *ctxt)
void
simple_dce_from_worklist (bitmap worklist)
{
+ int phiremoved = 0;
+ int stmtremoved = 0;
while (! bitmap_empty_p (worklist))
{
/* Pop item. */
@@ -2144,12 +2146,20 @@ simple_dce_from_worklist (bitmap worklist)
}
gimple_stmt_iterator gsi = gsi_for_stmt (t);
if (gimple_code (t) == GIMPLE_PHI)
- remove_phi_node (&gsi, true);
+ {
+ remove_phi_node (&gsi, true);
+ phiremoved++;
+ }
else
{
unlink_stmt_vdef (t);
gsi_remove (&gsi, true);
release_defs (t);
+ stmtremoved++;
}
}
+ statistics_counter_event (cfun, "PHIs removed",
+ phiremoved);
+ statistics_counter_event (cfun, "Statements removed",
+ stmtremoved);
}
--
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