From: George Koehler <xkernigh@netscape.net>
Date: Fri, 9 Dec 2016 23:40:14 +0000 (-0500)
Subject: Add a move from CONST smalls(%val) to GPR.
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=436114fce4fd0ba6b27adae2c583ae2f259fcfe2;p=ack.git

Add a move from CONST smalls(%val) to GPR.

This allows 'move {CONST, $1}, R3' with a small enough $1 to emit one
instruction (addi) instead of two instructions (addis, ori).  The
CONST token confusingly isn't in the CONST_ALL set.
---

diff --git a/mach/powerpc/ncg/table b/mach/powerpc/ncg/table
index cf3de92fd..d8b8082c7 100644
--- a/mach/powerpc/ncg/table
+++ b/mach/powerpc/ncg/table
@@ -389,7 +389,7 @@ MOVES
 
 /* Constants */
 
-	from CONST_ALL smalls(%val) to GPR
+	from CONST_ALL + CONST smalls(%val) to GPR
 		gen
 			COMMENT("move CONST_ALL->GPR smalls")
 			addi %2, R0, {CONST, %1.val}