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go, math, os, reflect: support standard library for loong64

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Contributors to the loong64 port are:
  Weining Lu <luweining@loongson.cn>
  Lei Wang <wanglei@loongson.cn>
  Lingqin Gong <gonglingqin@loongson.cn>
  Xiaolin Zhao <zhaoxiaolin@loongson.cn>
  Meidan Li <limeidan@loongson.cn>
  Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
  Qiyuan Pu <puqiyuan@loongson.cn>
  Guoqi Chen <chenguoqi@loongson.cn>

This port has been updated to Go 1.15.6:
  https://github.com/loongson/go

Updates #46229

Change-Id: I2ad9ed01fc913b90e75023ac0fa70de87a9f5de1
Reviewed-on: https://go-review.googlesource.com/c/go/+/342324
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Xiaodong Liu 2022-05-19 20:01:10 +08:00 committed by Gopher Robot
parent ae3ee9a7ec
commit 1371339530
4 changed files with 76 additions and 1 deletions
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1
src/go/types/gccgosizes.go
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@ -17,6 +17,7 @@ var gccgoArchSizes = map[string]*StdSizes{
"arm64": {8, 8},
"arm64be": {8, 8},
"ia64": {8, 8},
"loong64": {8, 8},
"m68k": {4, 2},
"mips": {4, 8},
"mipsle": {4, 8},

34
src/math/big/arith_loong64.s Normal file
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@ -0,0 +1,34 @@
// Copyright 2022 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.
// +build !math_big_pure_go,loong64
#include "textflag.h"
// This file provides fast assembly versions for the elementary
// arithmetic operations on vectors implemented in arith.go.
TEXT ·addVV(SB),NOSPLIT,$0
JMP ·addVV_g(SB)
TEXT ·subVV(SB),NOSPLIT,$0
JMP ·subVV_g(SB)
TEXT ·addVW(SB),NOSPLIT,$0
JMP ·addVW_g(SB)
TEXT ·subVW(SB),NOSPLIT,$0
JMP ·subVW_g(SB)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP ·shlVU_g(SB)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP ·shrVU_g(SB)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP ·mulAddVWW_g(SB)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP ·addMulVVW_g(SB)

2
src/os/endian_little.go
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@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
//go:build 386 || amd64 || arm || arm64 || ppc64le || mips64le || mipsle || riscv64 || wasm
//go:build 386 || amd64 || arm || arm64 || loong64 || ppc64le || mips64le || mipsle || riscv64 || wasm
package os

40
src/reflect/asm_loong64.s Normal file
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@ -0,0 +1,40 @@
// Copyright 2022 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"
#include "funcdata.h"
#define REGCTXT R29
// makeFuncStub is the code half of the function returned by MakeFunc.
// See the comment on the declaration of makeFuncStub in makefunc.go
// for more details.
// No arg size here, runtime pulls arg map out of the func value.
TEXT ·makeFuncStub(SB),(NOSPLIT|WRAPPER),$40
NO_LOCAL_POINTERS
MOVV REGCTXT, 8(R3)
MOVV $argframe+0(FP), R19
MOVV R19, 16(R3)
MOVB R0, 40(R3)
ADDV $40, R3, R19
MOVV R19, 24(R3)
MOVV R0, 32(R3)
JAL ·callReflect(SB)
RET
// methodValueCall is the code half of the function returned by makeMethodValue.
// See the comment on the declaration of methodValueCall in makefunc.go
// for more details.
// No arg size here; runtime pulls arg map out of the func value.
TEXT ·methodValueCall(SB),(NOSPLIT|WRAPPER),$40
NO_LOCAL_POINTERS
MOVV REGCTXT, 8(R3)
MOVV $argframe+0(FP), R19
MOVV R19, 16(R3)
MOVB R0, 40(R3)
ADDV $40, R3, R19
MOVV R19, 24(R3)
MOVV R0, 32(R3)
JAL ·callMethod(SB)
RET