Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / internal / asm / f32 / ddotunitary_amd64.s

diff --git a/vendor/gonum.org/v1/gonum/internal/asm/f32/ddotunitary_amd64.s b/vendor/gonum.org/v1/gonum/internal/asm/f32/ddotunitary_amd64.s
deleted file mode 100644 (file)
index 47d24ab..0000000
--- a/vendor/gonum.org/v1/gonum/internal/asm/f32/ddotunitary_amd64.s
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright ©2017 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"
-
-#define HADDPD_SUM_SUM    LONG $0xC07C0F66 // @ HADDPD X0, X0
-
-#define X_PTR SI
-#define Y_PTR DI
-#define LEN CX
-#define TAIL BX
-#define IDX AX
-#define SUM X0
-#define P_SUM X1
-
-// func DdotUnitary(x, y []float32) (sum float32)
-TEXT ·DdotUnitary(SB), NOSPLIT, $0
-       MOVQ    x_base+0(FP), X_PTR  // X_PTR = &x
-       MOVQ    y_base+24(FP), Y_PTR // Y_PTR = &y
-       MOVQ    x_len+8(FP), LEN     // LEN = min( len(x), len(y) )
-       CMPQ    y_len+32(FP), LEN
-       CMOVQLE y_len+32(FP), LEN
-       PXOR    SUM, SUM             // psum = 0
-       CMPQ    LEN, $0
-       JE      dot_end
-
-       XORQ IDX, IDX
-       MOVQ Y_PTR, DX
-       ANDQ $0xF, DX    // Align on 16-byte boundary for ADDPS
-       JZ   dot_no_trim // if DX == 0 { goto dot_no_trim }
-
-       SUBQ $16, DX
-
-dot_align: // Trim first value(s) in unaligned buffer  do {
-       CVTSS2SD (X_PTR)(IDX*4), X2 // X2 = float64(x[i])
-       CVTSS2SD (Y_PTR)(IDX*4), X3 // X3 = float64(y[i])
-       MULSD    X3, X2
-       ADDSD    X2, SUM            // SUM += X2
-       INCQ     IDX                // IDX++
-       DECQ     LEN
-       JZ       dot_end            // if --TAIL == 0 { return }
-       ADDQ     $4, DX
-       JNZ      dot_align          // } while --LEN > 0
-
-dot_no_trim:
-       PXOR P_SUM, P_SUM   // P_SUM = 0  for pipelining
-       MOVQ LEN, TAIL
-       ANDQ $0x7, TAIL     // TAIL = LEN % 8
-       SHRQ $3, LEN        // LEN = floor( LEN / 8 )
-       JZ   dot_tail_start // if LEN == 0 { goto dot_tail_start }
-
-dot_loop: // Loop unrolled 8x  do {
-       CVTPS2PD (X_PTR)(IDX*4), X2   // X_i = x[i:i+1]
-       CVTPS2PD 8(X_PTR)(IDX*4), X3
-       CVTPS2PD 16(X_PTR)(IDX*4), X4
-       CVTPS2PD 24(X_PTR)(IDX*4), X5
-
-       CVTPS2PD (Y_PTR)(IDX*4), X6   // X_j = y[i:i+1]
-       CVTPS2PD 8(Y_PTR)(IDX*4), X7
-       CVTPS2PD 16(Y_PTR)(IDX*4), X8
-       CVTPS2PD 24(Y_PTR)(IDX*4), X9
-
-       MULPD X6, X2 // X_i *= X_j
-       MULPD X7, X3
-       MULPD X8, X4
-       MULPD X9, X5
-
-       ADDPD X2, SUM   // SUM += X_i
-       ADDPD X3, P_SUM
-       ADDPD X4, SUM
-       ADDPD X5, P_SUM
-
-       ADDQ $8, IDX  // IDX += 8
-       DECQ LEN
-       JNZ  dot_loop // } while --LEN > 0
-
-       ADDPD P_SUM, SUM // SUM += P_SUM
-       CMPQ  TAIL, $0   // if TAIL == 0 { return }
-       JE    dot_end
-
-dot_tail_start:
-       MOVQ TAIL, LEN
-       SHRQ $1, LEN
-       JZ   dot_tail_one
-
-dot_tail_two:
-       CVTPS2PD (X_PTR)(IDX*4), X2 // X_i = x[i:i+1]
-       CVTPS2PD (Y_PTR)(IDX*4), X6 // X_j = y[i:i+1]
-       MULPD    X6, X2             // X_i *= X_j
-       ADDPD    X2, SUM            // SUM += X_i
-       ADDQ     $2, IDX            // IDX += 2
-       DECQ     LEN
-       JNZ      dot_tail_two       // } while --LEN > 0
-
-       ANDQ $1, TAIL
-       JZ   dot_end
-
-dot_tail_one:
-       CVTSS2SD (X_PTR)(IDX*4), X2 // X2 = float64(x[i])
-       CVTSS2SD (Y_PTR)(IDX*4), X3 // X3 = float64(y[i])
-       MULSD    X3, X2             // X2 *= X3
-       ADDSD    X2, SUM            // SUM += X2
-
-dot_end:
-       HADDPD_SUM_SUM        // SUM = \sum{ SUM[i] }
-       MOVSD SUM, sum+48(FP) // return SUM
-       RET