From: Lynn Boger <laboger@linux.vnet.ibm.com>
Date: Tue, 28 Sep 2021 19:43:58 +0000 (-0500)
Subject: runtime: port memmove, memclr to register ABI on ppc64x
X-Git-Tag: go1.18beta1~1138
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=daec057602d9a18f4464343e66d74b08ea41cce6;p=gostls13.git

runtime: port memmove, memclr to register ABI on ppc64x

This allows memmove and memclr to be invoked using the new
register ABI on ppc64x.

Change-Id: Ie397a942d7ebf76f62896924c3bb5b3a3dbba73e
Reviewed-on: https://go-review.googlesource.com/c/go/+/352891
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
---

diff --git a/src/runtime/memclr_ppc64x.s b/src/runtime/memclr_ppc64x.s
index 65639322b2..91aa417ca2 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 fd16ad8129..b36b23f8ef 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