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3860478b42
This change adds an asm implementations modf for ppc64x. Improvements: BenchmarkModf-16 7.48 6.26 -16.31% Updates: #21390 Change-Id: I9c4f3213688e3e8842d050840dc04fc9c0bf6ce4 Reviewed-on: https://go-review.googlesource.com/74411 Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Michael Munday <mike.munday@ibm.com>
18 lines
404 B
ArmAsm
18 lines
404 B
ArmAsm
// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build ppc64 ppc64le
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#include "textflag.h"
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// func Modf(f float64) (int float64, frac float64)
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TEXT ·Modf(SB),NOSPLIT,$0
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FMOVD f+0(FP), F0
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FRIZ F0, F1
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FMOVD F1, int+8(FP)
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FSUB F1, F0, F2
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FCPSGN F2, F0, F2
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FMOVD F2, frac+16(FP)
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RET
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