mirror of https://go.googlesource.com/go
31 lines
838 B
ArmAsm
31 lines
838 B
ArmAsm
// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build ppc64 || ppc64le
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#include "textflag.h"
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// On PPC64, the float32 becomes a float64
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// when loaded in a register, different from
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// other platforms. These functions are
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// needed to ensure correct conversions on PPC64.
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// Convert float32->uint64
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TEXT ·archFloat32ToReg(SB),NOSPLIT,$0-16
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FMOVS val+0(FP), F1
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FMOVD F1, ret+8(FP)
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RET
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// Convert uint64->float32
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TEXT ·archFloat32FromReg(SB),NOSPLIT,$0-12
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FMOVD reg+0(FP), F1
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// Normally a float64->float32 conversion
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// would need rounding, but that is not needed
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// here since the uint64 was originally converted
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// from float32, and should be avoided to
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// preserve SNaN values.
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FMOVS F1, ret+8(FP)
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RET
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