qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-21 21:54:40 -07:00
Code Releases Activity

doc/go1.19: Linux race detector now requires glibc 2.17

Browse Source 
Fixes #53522

Change-Id: Ibed838d358a733d26a6c3d89446d7fadb1012961
Reviewed-on: https://go-review.googlesource.com/c/go/+/413876
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Ian Lance Taylor 2022-06-23 17:23:39 -07:00 committed by HowJMay
parent de5329f1de
commit 1d646a5a14
3 changed files with 59 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
src/math/hypot_arm64.s Normal file
View File

@ -0,0 +1,55 @@
// Copyright 2021 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"
#define PosInf 0x7FF0000000000000
#define NaN 0x7FF8000000000001
// func archHypot(p, q float64) float64
TEXT ·archHypot(SB), NOSPLIT, $0-24
FMOVD p+0(FP), F0
FMOVD q+8(FP), F1
MOVD $PosInf, R0
FMOVD R0, F30 // F30 is PosInf
FABSD F0, F0
FABSD F1, F1
FCMPD F30, F0
BGE isInf
FCMPD F30, F1
BGE isInf
FCMPED F0, F0
BNE isNaN
FCMPED F1, F1
BNE isNaN
FMAXD F0, F1, F2 // p is greater
FMIND F0, F1, F3 // q is less
FCMPD F2, 0.0
BEQ IsZero // if p == 0, return 0
// p q
FDIVD F2, F3, F3
FMULD F3, F3, F3
FMOVD $1.0, F4
FADDD F4, F3, F3
FSQRTD F3, F3
FMULD F3, F2, F3
FMOVD F3, ret+16(FP)
RET
isNaN:
MOVD $NaN, R0
FMOVD R0, F29 // F29 is NaN
FMOVD F29, ret+16(FP) // return NaN
RET
isInf:
FMOVD F30, ret+16(FP) // return +Inf
RET
isZero:
// R0 has been set to zero
MOVD R0, ret+16(FP) // return 0
RET

3
src/math/hypot_asm.go
View File

@ -2,7 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build 386 || amd64
//go:build 386 || amd64 || arm64
// +build 386 amd64 arm64
package math

3
src/math/hypot_noasm.go
View File

@ -2,7 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !386 && !amd64
//go:build !386 && !amd64 && !arm64
// +build !386,!amd64,!arm64
package math