Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / internal / asm / f64 / div_amd64.s

diff --git a/vendor/gonum.org/v1/gonum/internal/asm/f64/div_amd64.s b/vendor/gonum.org/v1/gonum/internal/asm/f64/div_amd64.s
deleted file mode 100644 (file)
index f3fc1e1..0000000
--- a/vendor/gonum.org/v1/gonum/internal/asm/f64/div_amd64.s
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright ©2016 The Gonum 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 !noasm,!appengine
-
-#include "textflag.h"
-
-// func Div(dst, s []float64)
-TEXT ·Div(SB), NOSPLIT, $0
-       MOVQ    dst_base+0(FP), DI // DI = &dst
-       MOVQ    dst_len+8(FP), CX  // CX = len(dst)
-       MOVQ    s_base+24(FP), SI  // SI = &s
-       CMPQ    s_len+32(FP), CX   // CX = max( CX, len(s) )
-       CMOVQLE s_len+32(FP), CX
-       CMPQ    CX, $0             // if CX == 0 { return }
-       JE      div_end
-       XORQ    AX, AX             // i = 0
-       MOVQ    SI, BX
-       ANDQ    $15, BX            // BX = &s & 15
-       JZ      div_no_trim        // if BX == 0 { goto div_no_trim }
-
-       // Align on 16-bit boundary
-       MOVSD (DI)(AX*8), X0 // X0 = dst[i]
-       DIVSD (SI)(AX*8), X0 // X0 /= s[i]
-       MOVSD X0, (DI)(AX*8) // dst[i] = X0
-       INCQ  AX             // ++i
-       DECQ  CX             // --CX
-       JZ    div_end        // if CX == 0 { return }
-
-div_no_trim:
-       MOVQ CX, BX
-       ANDQ $7, BX         // BX = len(dst) % 8
-       SHRQ $3, CX         // CX = floor( len(dst) / 8 )
-       JZ   div_tail_start // if CX == 0 { goto div_tail_start }
-
-div_loop: // Loop unrolled 8x   do {
-       MOVUPS (DI)(AX*8), X0   // X0 = dst[i:i+1]
-       MOVUPS 16(DI)(AX*8), X1
-       MOVUPS 32(DI)(AX*8), X2
-       MOVUPS 48(DI)(AX*8), X3
-       DIVPD  (SI)(AX*8), X0   // X0 /= s[i:i+1]
-       DIVPD  16(SI)(AX*8), X1
-       DIVPD  32(SI)(AX*8), X2
-       DIVPD  48(SI)(AX*8), X3
-       MOVUPS X0, (DI)(AX*8)   // dst[i] = X0
-       MOVUPS X1, 16(DI)(AX*8)
-       MOVUPS X2, 32(DI)(AX*8)
-       MOVUPS X3, 48(DI)(AX*8)
-       ADDQ   $8, AX           // i += 8
-       LOOP   div_loop         // } while --CX > 0
-       CMPQ   BX, $0           // if BX == 0 { return }
-       JE     div_end
-
-div_tail_start: // Reset loop registers
-       MOVQ BX, CX // Loop counter: CX = BX
-
-div_tail: // do {
-       MOVSD (DI)(AX*8), X0 // X0 = dst[i]
-       DIVSD (SI)(AX*8), X0 // X0 /= s[i]
-       MOVSD X0, (DI)(AX*8) // dst[i] = X0
-       INCQ  AX             // ++i
-       LOOP  div_tail       // } while --CX > 0
-
-div_end:
-       RET
-