[dev.power64] math: implement Abs, add power64/power64le forwarding assembly functions

LGTM=rsc
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/119670043

diff --git a/src/pkg/math/abs_power64x.s b/src/pkg/math/abs_power64x.s
new file mode 100644 (file)
index 0000000..8fd8020
--- /dev/null
+++ b/src/pkg/math/abs_power64x.s
@@ -0,0 +1,14 @@
+// Copyright 2011 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.
+
+// +build power64 power64le
+
+#include "../../cmd/ld/textflag.h"
+
+TEXT ·Abs(SB),NOSPLIT,$0-16
+       MOVD    x+0(FP), R3
+       MOVD    $((1<<63)-1), R4
+       AND     R4, R3
+       MOVD    R3, ret+8(FP)
+       RETURN

diff --git a/src/pkg/math/stubs_power64x.s b/src/pkg/math/stubs_power64x.s
new file mode 100644 (file)
index 0000000..0cb8614
--- /dev/null
+++ b/src/pkg/math/stubs_power64x.s
@@ -0,0 +1,91 @@
+// Copyright 2014 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.
+
+// +build power64 power64le
+
+#include "../../cmd/ld/textflag.h"
+
+TEXT ·Asin(SB),NOSPLIT,$0
+       BR ·asin(SB)
+
+TEXT ·Acos(SB),NOSPLIT,$0
+       BR ·acos(SB)
+
+TEXT ·Atan2(SB),NOSPLIT,$0
+       BR ·atan2(SB)
+
+TEXT ·Atan(SB),NOSPLIT,$0
+       BR ·atan(SB)
+
+TEXT ·Dim(SB),NOSPLIT,$0
+       BR ·dim(SB)
+
+TEXT ·Min(SB),NOSPLIT,$0
+       BR ·min(SB)
+
+TEXT ·Max(SB),NOSPLIT,$0
+       BR ·max(SB)
+
+TEXT ·Exp2(SB),NOSPLIT,$0
+       BR ·exp2(SB)
+
+TEXT ·Expm1(SB),NOSPLIT,$0
+       BR ·expm1(SB)
+
+TEXT ·Exp(SB),NOSPLIT,$0
+       BR ·exp(SB)
+
+TEXT ·Floor(SB),NOSPLIT,$0
+       BR ·floor(SB)
+
+TEXT ·Ceil(SB),NOSPLIT,$0
+       BR ·ceil(SB)
+
+TEXT ·Trunc(SB),NOSPLIT,$0
+       BR ·trunc(SB)
+
+TEXT ·Frexp(SB),NOSPLIT,$0
+       BR ·frexp(SB)
+
+TEXT ·Hypot(SB),NOSPLIT,$0
+       BR ·hypot(SB)
+
+TEXT ·Ldexp(SB),NOSPLIT,$0
+       BR ·ldexp(SB)
+
+TEXT ·Log10(SB),NOSPLIT,$0
+       BR ·log10(SB)
+
+TEXT ·Log2(SB),NOSPLIT,$0
+       BR ·log2(SB)
+
+TEXT ·Log1p(SB),NOSPLIT,$0
+       BR ·log1p(SB)
+
+TEXT ·Log(SB),NOSPLIT,$0
+       BR ·log(SB)
+
+TEXT ·Modf(SB),NOSPLIT,$0
+       BR ·modf(SB)
+
+TEXT ·Mod(SB),NOSPLIT,$0
+       BR ·mod(SB)
+
+TEXT ·Remainder(SB),NOSPLIT,$0
+       BR ·remainder(SB)
+
+TEXT ·Sincos(SB),NOSPLIT,$0
+       BR ·sincos(SB)
+
+TEXT ·Sin(SB),NOSPLIT,$0
+       BR ·sin(SB)
+
+TEXT ·Cos(SB),NOSPLIT,$0
+       BR ·cos(SB)
+
+TEXT ·Sqrt(SB),NOSPLIT,$0
+       BR ·sqrt(SB)
+
+TEXT ·Tan(SB),NOSPLIT,$0
+       BR ·tan(SB)