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Diffstat (limited to 'src/reflect/float32reg_ppc64x.s')
| -rw-r--r-- | src/reflect/float32reg_ppc64x.s | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/reflect/float32reg_ppc64x.s b/src/reflect/float32reg_ppc64x.s new file mode 100644 index 0000000..a4deb18 --- /dev/null +++ b/src/reflect/float32reg_ppc64x.s @@ -0,0 +1,30 @@ +// 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 + |