diff --git a/src/runtime/memclr_ppc64x.s b/src/runtime/memclr_ppc64x.s
index 65639322b2a..91aa417ca2a 100644
--- a/src/runtime/memclr_ppc64x.s
+++ b/src/runtime/memclr_ppc64x.s
@@ -10,9 +10,11 @@
 // See memclrNoHeapPointers Go doc for important implementation constraints.
 
 // func memclrNoHeapPointers(ptr unsafe.Pointer, n uintptr)
-TEXT runtime·memclrNoHeapPointers(SB), NOSPLIT|NOFRAME, $0-16
+TEXT runtime·memclrNoHeapPointers<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-16
+#ifndef GOEXPERIMENT_regabiargs
 	MOVD ptr+0(FP), R3
 	MOVD n+8(FP), R4
+#endif
 
 	// Determine if there are doublewords to clear
 check:
diff --git a/src/runtime/memmove_ppc64x.s b/src/runtime/memmove_ppc64x.s
index fd16ad8129b..b36b23f8ef3 100644
--- a/src/runtime/memmove_ppc64x.s
+++ b/src/runtime/memmove_ppc64x.s
@@ -28,10 +28,12 @@
 // number of 32 byte chunks
 #define QWORDS R10
 
-TEXT runtime·memmove(SB), NOSPLIT|NOFRAME, $0-24
+TEXT runtime·memmove<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-24
+#ifndef GOEXPERIMENT_regabiargs
 	MOVD	to+0(FP), TGT
 	MOVD	from+8(FP), SRC
 	MOVD	n+16(FP), LEN
+#endif
 
 	// Determine if there are doublewords to
 	// copy so a more efficient move can be done