More register optimizations

[fw/sdcc] / src / pic / peeph.def

diff --git a/src/pic/peeph.def b/src/pic/peeph.def
index e7a5a865f0be151301660b51947fdcfb1a3cd78b..79bdb92be38d297755261d2f70ed443a9d60ade0 100644 (file)
--- a/src/pic/peeph.def
+++ b/src/pic/peeph.def
@@ -247,3 +247,23 @@ replace restart {
        movf    %1,w
        movwf   %2
 }
+
+replace restart {
+       movwf   %1
+       movf    %1,w
+       movwf   %2
+} by {
+       ; peep 9d - Removed redundant move
+       movwf   %1
+       movwf   %2
+} if NZ
+
+replace restart {
+       movwf   %1
+       iorlw   0
+       movf    %1,w
+} by {
+       ; peep 10 - Removed unnecessary iorlw
+       movwf   %1
+       movf    %1
+}