runtime: remove duff support for amd64

Change-Id: I742b49a3889892b7b1bb354f47f1c0d933c041e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/682395
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

2 files changed, 0 insertions, 428 deletions

diff --git a/src/runtime/duff_amd64.s b/src/runtime/duff_amd64.s
deleted file mode 100644
index 69e9980a30..0000000000
--- a/src/runtime/duff_amd64.s
+++ /dev/null
@@ -1,427 +0,0 @@
-// Code generated by mkduff.go; DO NOT EDIT.
-// Run go generate from src/runtime to update.
-// See mkduff.go for comments.
-
-#include "textflag.h"
-
-TEXT runtime·duffzero<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-0
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	MOVUPS	X15,(DI)
-	MOVUPS	X15,16(DI)
-	MOVUPS	X15,32(DI)
-	MOVUPS	X15,48(DI)
-	LEAQ	64(DI),DI
-
-	RET
-
-TEXT runtime·duffcopy<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-0
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	MOVUPS	(SI), X0
-	ADDQ	$16, SI
-	MOVUPS	X0, (DI)
-	ADDQ	$16, DI
-
-	RET
diff --git a/src/runtime/mkduff.go b/src/runtime/mkduff.go
index a0ec987307..dfff084e80 100644
--- a/src/runtime/mkduff.go
+++ b/src/runtime/mkduff.go
@@ -32,7 +32,6 @@ import (
 )
 
 func main() {
-	gen("amd64", notags, zeroAMD64, copyAMD64)
 	gen("386", notags, zero386, copy386)
 	gen("arm", notags, zeroARM, copyARM)
 	gen("loong64", notags, zeroLOONG64, copyLOONG64)