From 63949dcd13e24bdc73336b0f5e88d4f06cce56c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= <egil@erlang.org>
Date: Mon, 15 Sep 2014 17:58:33 +0200
Subject: erts: Add instruction move3 for xy and xx

---
 erts/emulator/beam/beam_emu.c | 3 ++-
 erts/emulator/beam/ops.tab    | 8 ++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

(limited to 'erts/emulator')

diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index aad76e9a93..8b9e271068 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -562,7 +562,8 @@ void** beam_ops;
        Store(term, Dst);           \
    } while (0)
 
-#define Move2(src1, dst1, src2, dst2) dst1 = (src1); dst2 = (src2)
+#define Move2(S1, D1, S2, D2) D1 = (S1); D2 = (S2)
+#define Move3(S1, D1, S2, D2, S3, D3) D1 = (S1); D2 = (S2); D3 = (S3)
 
 #define MoveGenDest(src, dstp) \
    if ((dstp) == NULL) { r(0) = (src); } else { *(dstp) = src; }
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 9330192d04..66339f8ace 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -302,6 +302,9 @@ move X1=x Y1=y | move X2=x Y2=y => move2 X1 Y1 X2 Y2
 move Y1=y X1=x | move Y2=y X2=x => move2 Y1 X1 Y2 X2
 move X1=x X2=x | move X3=x X4=x => move2 X1 X2 X3 X4
 
+move2 X1=x Y1=y X2=x Y2=y | move X3=x Y3=y => move3 X1 Y1 X2 Y2 X3 Y3
+move2 Y1=y X1=x Y2=y X2=x | move Y3=y X3=x => move3 Y1 X1 Y2 X2 Y3 X3
+
 move C=aiq X=x==1 => move_x1 C
 move C=aiq X=x==2 => move_x2 C
 
@@ -313,6 +316,11 @@ move2 x y x y
 move2 y x y x
 move2 x x x x
 
+%macro: move3 Move3
+move3 x y x y x y
+move3 y x y x y x
+move3 x x x x x x
+
 # The compiler almost never generates a "move Literal y(Y)" instruction,
 # so let's cheat if we encounter one.
 move S=n D=y => init D
-- 
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