From 50e0e555b538d1018287ade0845db95d4be8004d Mon Sep 17 00:00:00 2001
From: borutr <borutr@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Sun, 17 Feb 2008 07:25:53 +0000
Subject: [PATCH] * src/z80/peeph.def: applied patch   #1893626: Optimize tail
 calls on Z80, thanks to Philipp Krause

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@5014 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 ChangeLog         |  5 +++++
 src/z80/peeph.def | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 0e8c34e9..4db5e32b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-02-17 Borut Razem <borut.razem AT siol.net>
+
+	* src/z80/peeph.def: applied patch
+	  #1893626: Optimize tail calls on Z80, thanks to Philipp Krause
+
 2008-02-16 Maarten Brock <sourceforge.brock AT dse.nl>
 
 	* as/link/mcs51/aslink.dsp: removed SDK define
diff --git a/src/z80/peeph.def b/src/z80/peeph.def
index c88c3a78..90b1b2b1 100644
--- a/src/z80/peeph.def
+++ b/src/z80/peeph.def
@@ -702,4 +702,21 @@ replace restart {
 	; peephole 64 moved addition of constant 0x%3%2 to bc to constant.
 }
 
+replace restart {
+	call	%1
+	ret
+} by {
+	jp	%1
+	; peephole 65 replaced call at end of function by jump.
+}
 
+// Callee saves ix.
+replace restart {
+	call	%1
+	pop	ix
+	ret
+} by {
+	pop	ix
+	jp	%1
+	; peephole 66 replaced call at end of function by jump moving call beyond pop ix.
+}
-- 
2.30.2