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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
commit73df946d56c74384511a194dd01dbe099584fd1a (patch)
treefd0bcea490dd81327ddfbb31e215439672c9a068 /src/runtime/memclr_wasm.s
parentInitial commit. (diff)
downloadgolang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz
golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/runtime/memclr_wasm.s')
-rw-r--r--src/runtime/memclr_wasm.s39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/runtime/memclr_wasm.s b/src/runtime/memclr_wasm.s
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+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+// See memclrNoHeapPointers Go doc for important implementation constraints.
+
+// func memclrNoHeapPointers(ptr unsafe.Pointer, n uintptr)
+TEXT runtime·memclrNoHeapPointers(SB), NOSPLIT, $0-16
+ MOVD ptr+0(FP), R0
+ MOVD n+8(FP), R1
+
+loop:
+ Loop
+ Get R1
+ I64Eqz
+ If
+ RET
+ End
+
+ Get R0
+ I32WrapI64
+ I64Const $0
+ I64Store8 $0
+
+ Get R0
+ I64Const $1
+ I64Add
+ Set R0
+
+ Get R1
+ I64Const $1
+ I64Sub
+ Set R1
+
+ Br loop
+ End
+ UNDEF