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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /src/reflect/float32reg_ppc64x.s | |
parent | Initial commit. (diff) | |
download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 + |