src/pkg/math/abs_amd64.s - Issue 160200044: [dev.power64] code review 160200044: build: merge default into dev.power64

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Delta Between Two Patch Sets: src/pkg/math/abs_amd64.s

Issue 160200044: [dev.power64] code review 160200044: build: merge default into dev.power64 (Closed)

Left Patch Set: Created 10 years, 4 months ago

Right Patch Set: diff -r be0c14f62257b42485019e9e1db23cf40d2e249f https://code.google.com/p/go Created 10 years, 4 months ago

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1 // Copyright 2010 The Go Authors. All rights reserved.	1 // Copyright 2010 The Go Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style	2 // Use of this source code is governed by a BSD-style

3 // license that can be found in the LICENSE file.	3 // license that can be found in the LICENSE file.

4	4

5 #include "../../cmd/ld/textflag.h"	5 #include "textflag.h"

6	6

7 // func Abs(x float64) float64	7 // func Abs(x float64) float64

8 TEXT ·Abs(SB),NOSPLIT,$0	8 TEXT ·Abs(SB),NOSPLIT,$0

9 MOVQ $(1<<63), BX	9 MOVQ $(1<<63), BX

10 MOVQ BX, X0 // movsd $(-0.0), x0	10 MOVQ BX, X0 // movsd $(-0.0), x0

11 MOVSD x+0(FP), X1	11 MOVSD x+0(FP), X1

12 ANDNPD X1, X0	12 ANDNPD X1, X0

13 MOVSD X0, ret+8(FP)	13 MOVSD X0, ret+8(FP)

14 RET	14 RET

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