From 6d43ec50966cafb339eb6a370a5d767a24f673e1 Mon Sep 17 00:00:00 2001
From: Jeff Law <jeffreyalaw@gmail.com>
Date: Tue, 15 Jun 2021 12:42:42 -0400
Subject: Minor improvement to compare elimination

gcc/
	* compare-elim.c (try_eliminate_compare): Run DCE to clean things
	up before eliminating comparisons.
---
 gcc/compare-elim.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'gcc/compare-elim.c')

diff --git a/gcc/compare-elim.c b/gcc/compare-elim.c
index 85085cd..607eadc 100644
--- a/gcc/compare-elim.c
+++ b/gcc/compare-elim.c
@@ -906,6 +906,7 @@ try_eliminate_compare (struct comparison *cmp)
 static unsigned int
 execute_compare_elim_after_reload (void)
 {
+  df_set_flags (DF_LR_RUN_DCE);
   df_analyze ();
 
   gcc_checking_assert (!all_compares.exists ());
-- 
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