From 7ba69be87b3910cac2a8cd1cfe021e58f57f58d7 Mon Sep 17 00:00:00 2001
From: Quentin Carbonneaux <quentin@c9x.me>
Date: Sun, 5 May 2019 14:34:17 +0200
Subject: fuse epilog deduplication with jump threading

---
 rega.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'rega.c')

diff --git a/rega.c b/rega.c
index 8f2fbd0..ba405e5 100644
--- a/rega.c
+++ b/rega.c
@@ -417,10 +417,11 @@ doblk(Blk *b, RMap *cur)
 			}
 		for (r=0; r<nr; r++)
 			*ra[r] = ralloc(cur, ra[r]->val);
+		if (i->op == Ocopy && req(i->to, i->arg[0]))
+			curi++;
 
 		/* try to change the register of a hinted
 		 * temporary if rf is available */
-		x = 1;
 		if (rf != -1 && (t = cur->w[rf]) != 0)
 		if (!bshas(cur->b, rf) && *hint(t) == rf
 		&& (rt = rfree(cur, t)) != -1) {
-- 
cgit 1.4.1