1 files changed, 0 insertions, 76 deletions
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go b/vendor/golang.org/x/crypto/poly1305/sum_s390x.go
deleted file mode 100644
index 62cc9f84..00000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2018 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.
-
-//go:build gc && !purego
-// +build gc,!purego
-
-package poly1305
-
-import (
-	"golang.org/x/sys/cpu"
-)
-
-// updateVX is an assembly implementation of Poly1305 that uses vector
-// instructions. It must only be called if the vector facility (vx) is
-// available.
-//go:noescape
-func updateVX(state *macState, msg []byte)
-
-// mac is a replacement for macGeneric that uses a larger buffer and redirects
-// calls that would have gone to updateGeneric to updateVX if the vector
-// facility is installed.
-//
-// A larger buffer is required for good performance because the vector
-// implementation has a higher fixed cost per call than the generic
-// implementation.
-type mac struct {
-	macState
-
-	buffer [16 * TagSize]byte // size must be a multiple of block size (16)
-	offset int
-}
-
-func (h *mac) Write(p []byte) (int, error) {
-	nn := len(p)
-	if h.offset > 0 {
-		n := copy(h.buffer[h.offset:], p)
-		if h.offset+n < len(h.buffer) {
-			h.offset += n
-			return nn, nil
-		}
-		p = p[n:]
-		h.offset = 0
-		if cpu.S390X.HasVX {
-			updateVX(&h.macState, h.buffer[:])
-		} else {
-			updateGeneric(&h.macState, h.buffer[:])
-		}
-	}
-
-	tail := len(p) % len(h.buffer) // number of bytes to copy into buffer
-	body := len(p) - tail          // number of bytes to process now
-	if body > 0 {
-		if cpu.S390X.HasVX {
-			updateVX(&h.macState, p[:body])
-		} else {
-			updateGeneric(&h.macState, p[:body])
-		}
-	}
-	h.offset = copy(h.buffer[:], p[body:]) // copy tail bytes - can be 0
-	return nn, nil
-}
-
-func (h *mac) Sum(out *[TagSize]byte) {
-	state := h.macState
-	remainder := h.buffer[:h.offset]
-
-	// Use the generic implementation if we have 2 or fewer blocks left
-	// to sum. The vector implementation has a higher startup time.
-	if cpu.S390X.HasVX && len(remainder) > 2*TagSize {
-		updateVX(&state, remainder)
-	} else if len(remainder) > 0 {
-		updateGeneric(&state, remainder)
-	}
-	finalize(out, &state.h, &state.s)
-}