1// Copyright 2021 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build ppc64 || ppc64le
6
7#include "textflag.h"
8
9// On PPC64, the float32 becomes a float64
10// when loaded in a register, different from
11// other platforms. These functions are
12// needed to ensure correct conversions on PPC64.
13
14// Convert float32->uint64
15TEXT ·archFloat32ToReg(SB),NOSPLIT,$0-16
16	FMOVS	val+0(FP), F1
17	FMOVD	F1, ret+8(FP)
18	RET
19
20// Convert uint64->float32
21TEXT ·archFloat32FromReg(SB),NOSPLIT,$0-12
22	FMOVD	reg+0(FP), F1
23	// Normally a float64->float32 conversion
24	// would need rounding, but that is not needed
25	// here since the uint64 was originally converted
26	// from float32, and should be avoided to
27	// preserve SNaN values.
28	FMOVS	F1, ret+8(FP)
29	RET
30
31