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Diffstat (limited to 'vendor/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go')
-rw-r--r--vendor/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go52
1 files changed, 0 insertions, 52 deletions
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go
deleted file mode 100644
index 638cb5e5d..000000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright 2019 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 ppc64le,!gccgo,!appengine
-
-package chacha20
-
-import "encoding/binary"
-
-const (
- bufSize = 256
- haveAsm = true
-)
-
-//go:noescape
-func chaCha20_ctr32_vmx(out, inp *byte, len int, key *[8]uint32, counter *uint32)
-
-func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
- if len(src) >= bufSize {
- chaCha20_ctr32_vmx(&dst[0], &src[0], len(src)-len(src)%bufSize, &c.key, &c.counter)
- }
- if len(src)%bufSize != 0 {
- chaCha20_ctr32_vmx(&c.buf[0], &c.buf[0], bufSize, &c.key, &c.counter)
- start := len(src) - len(src)%bufSize
- ts, td, tb := src[start:], dst[start:], c.buf[:]
- // Unroll loop to XOR 32 bytes per iteration.
- for i := 0; i < len(ts)-32; i += 32 {
- td, tb = td[:len(ts)], tb[:len(ts)] // bounds check elimination
- s0 := binary.LittleEndian.Uint64(ts[0:8])
- s1 := binary.LittleEndian.Uint64(ts[8:16])
- s2 := binary.LittleEndian.Uint64(ts[16:24])
- s3 := binary.LittleEndian.Uint64(ts[24:32])
- b0 := binary.LittleEndian.Uint64(tb[0:8])
- b1 := binary.LittleEndian.Uint64(tb[8:16])
- b2 := binary.LittleEndian.Uint64(tb[16:24])
- b3 := binary.LittleEndian.Uint64(tb[24:32])
- binary.LittleEndian.PutUint64(td[0:8], s0^b0)
- binary.LittleEndian.PutUint64(td[8:16], s1^b1)
- binary.LittleEndian.PutUint64(td[16:24], s2^b2)
- binary.LittleEndian.PutUint64(td[24:32], s3^b3)
- ts, td, tb = ts[32:], td[32:], tb[32:]
- }
- td, tb = td[:len(ts)], tb[:len(ts)] // bounds check elimination
- for i, v := range ts {
- td[i] = tb[i] ^ v
- }
- c.len = bufSize - (len(src) % bufSize)
-
- }
-
-}