[dev.power64] code review 160200044: build: merge default into dev.power64

src/pkg/math/tan_386.s

 // Copyright 2010 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.
 
-#include "../../cmd/ld/textflag.h"
+#include "textflag.h"
 
 // func Tan(x float64) float64
 TEXT ·Tan(SB),NOSPLIT,$0
         FMOVD   x+0(FP), F0  // F0=x
         FPTAN                // F0=1, F1=tan(x) if -2**63 < x < 2**63
         FSTSW   AX           // AX=status word
         ANDW    $0x0400, AX
         JNE     4(PC)        // jump if x outside range
         FMOVDP  F0, F0       // F0=tan(x)
         FMOVDP  F0, ret+8(FP)
         RET
         FLDPI                // F0=Pi, F1=x
         FADDD   F0, F0       // F0=2*Pi, F1=x
         FXCHD   F0, F1       // F0=x, F1=2*Pi
         FPREM1               // F0=reduced_x, F1=2*Pi
         FSTSW   AX           // AX=status word
         ANDW    $0x0400, AX
         JNE     -3(PC)       // jump if reduction incomplete
         FMOVDP  F0, F1       // F0=reduced_x
         FPTAN                // F0=1, F1=tan(reduced_x)
         FMOVDP  F0, F0       // F0=tan(reduced_x)
         FMOVDP  F0, ret+8(FP)
         RET