diff --git a/libc/arch-arm64/generic/bionic/memmove.S b/libc/arch-arm64/generic/bionic/memmove.S
index 8b366a3..739ce49 100644
--- a/libc/arch-arm64/generic/bionic/memmove.S
+++ b/libc/arch-arm64/generic/bionic/memmove.S
@@ -35,10 +35,6 @@
 #include <private/bionic_asm.h>
 
 /* Parameters and result.  */
-#ifdef BCOPY
-#define origdstin	x1
-#define origsrc	x0
-#endif
 #define dstin	x0
 #define src	x1
 #define count	x2
@@ -59,13 +55,7 @@
 #define D_l	x13
 #define D_h	x14
 
-#ifdef BCOPY
-ENTRY(bcopy)
-	/* Swap src and dst so that a branch to memcpy doesn't cause issues. */
-	mov	tmp1, origsrc
-	mov	origsrc, origdstin
-	mov	origdstin, tmp1
-#elif defined(WMEMMOVE)
+#if defined(WMEMMOVE)
 ENTRY(wmemmove)
 	lsl	count, count, #2
 #else
@@ -332,9 +322,7 @@
 	tst	count, #0x3f
 	b.ne	.Ltail63down
 	ret
-#ifdef BCOPY
-END(bcopy)
-#elif defined(WMEMMOVE)
+#if defined(WMEMMOVE)
 END(wmemmove)
 #else
 END(memmove)