From 3d91966b0dcfe0bd0fc3a779a63d49546e46aea8 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Sun, 24 May 2020 20:07:49 -0700
Subject: qbe: Omit unnecessary add to help QBE's memopt pass

---
 test/struct-copy.qbe | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

(limited to 'test/struct-copy.qbe')

diff --git a/test/struct-copy.qbe b/test/struct-copy.qbe
index 4778921..eb2c955 100644
--- a/test/struct-copy.qbe
+++ b/test/struct-copy.qbe
@@ -3,19 +3,18 @@ function $f() {
 @start.1
 	%.1 =l alloc4 12
 @body.2
-	%.2 =l add %.1, 0
-	%.3 =l loaduw $x
-	storew %.3, %.2
-	%.4 =l add $x, 4
-	%.5 =l add %.2, 4
-	%.6 =l loaduw %.4
-	storew %.6, %.5
+	%.2 =l loaduw $x
+	storew %.2, %.1
+	%.3 =l add $x, 4
+	%.4 =l add %.1, 4
+	%.5 =l loaduw %.3
+	storew %.5, %.4
+	%.6 =l add %.3, 4
 	%.7 =l add %.4, 4
-	%.8 =l add %.5, 4
-	%.9 =l loaduw %.7
-	storew %.9, %.8
+	%.8 =l loaduw %.6
+	storew %.8, %.7
+	%.9 =l add %.6, 4
 	%.10 =l add %.7, 4
-	%.11 =l add %.8, 4
 	ret
 }
 export data $x = align 4 { z 12 }
-- 
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