| // 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. |
| |
| //go:build ppc64 || ppc64le |
| |
| #include "textflag.h" |
| |
| // On PPC64, the float32 becomes a float64 |
| // when loaded in a register, different from |
| // other platforms. These functions are |
| // needed to ensure correct conversions on PPC64. |
| |
| // Convert float32->uint64 |
| TEXT ·archFloat32ToReg(SB),NOSPLIT,$0-16 |
| FMOVS val+0(FP), F1 |
| FMOVD F1, ret+8(FP) |
| RET |
| |
| // Convert uint64->float32 |
| TEXT ·archFloat32FromReg(SB),NOSPLIT,$0-12 |
| FMOVD reg+0(FP), F1 |
| // Normally a float64->float32 conversion |
| // would need rounding, but that is not needed |
| // here since the uint64 was originally converted |
| // from float32, and should be avoided to |
| // preserve SNaN values. |
| FMOVS F1, ret+8(FP) |
| RET |
| |
