github.com/mtsmfm/go/src@v0.0.0-20221020090648-44bdcb9f8fde/reflect/float32reg_ppc64x.s (about) 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 15 TEXT ·archFloat32ToReg(SB),NOSPLIT,$0-16 16 FMOVS val+0(FP), F1 17 FMOVD F1, ret+8(FP) 18 RET 19 20 // Convert uint64->float32 21 TEXT ·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