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align address mode

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Sun Yimin 2024-08-28 09:42:12 +08:00 committed by GitHub
parent ae43444a63
commit d3727e7130
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2 changed files with 9 additions and 10 deletions
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17
internal/subtle/xor_s390x.s
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@ -1,6 +1,5 @@
// Copyright 2016 The Go Authors. All rights reserved. // The original code (non-vector) is ported from Golang
// Use of this source code is governed by a BSD-style // https://github.com/golang/go/blob/master/src/crypto/aes/ctr_s390x.go
// license that can be found in the LICENSE file.
//go:build !purego //go:build !purego
@ -17,13 +16,13 @@ TEXT ·xorBytes(SB),NOSPLIT,$0-32
CMPBLT R4, $64, less_than64 CMPBLT R4, $64, less_than64
loop64b: loop64b:
VLM (R2)(R5*1), V0, V3 VLM 0(R2)(R5*1), V0, V3
VLM (R3)(R5*1), V4, V7 VLM 0(R3)(R5*1), V4, V7
VX V0, V4, V4 VX V0, V4, V4
VX V1, V5, V5 VX V1, V5, V5
VX V2, V6, V6 VX V2, V6, V6
VX V3, V7, V7 VX V3, V7, V7
VSTM V4, V7, (R1)(R5*1) VSTM V4, V7, 0(R1)(R5*1)
LAY 64(R5), R5 LAY 64(R5), R5
SUB $64, R4 SUB $64, R4
CMPBGE R4, $64, loop64b CMPBGE R4, $64, loop64b
@ -31,11 +30,11 @@ loop64b:
less_than64: less_than64:
CMPBEQ R4, $0, done // quick end CMPBEQ R4, $0, done // quick end
CMPBLT R4, $32, less_than32 CMPBLT R4, $32, less_than32
VLM (R2)(R5*1), V0, V1 VLM 0(R2)(R5*1), V0, V1
VLM (R3)(R5*1), V2, V3 VLM 0(R3)(R5*1), V2, V3
VX V0, V2, V2 VX V0, V2, V2
VX V1, V3, V3 VX V1, V3, V3
VSTM V2, V3, (R1)(R5*1) VSTM V2, V3, 0(R1)(R5*1)
LAY 32(R5), R5 LAY 32(R5), R5
SUB $32, R4 SUB $32, R4

2
internal/subtle/xor_test.go
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@ -43,7 +43,7 @@ func TestXORBytes(t *testing.T) {
} }
if subtle.XORBytes(d[alignD:], p, q); !bytes.Equal(d, want) { if subtle.XORBytes(d[alignD:], p, q); !bytes.Equal(d, want) {
t.Errorf("n=%d alignP=%d alignQ=%d alignD=%d:\n\tp = %x\n\tq = %x\n\td = %x\n\twant %x\n", n, alignP, alignQ, alignD, p, q, d, want) t.Fatalf("n=%d alignP=%d alignQ=%d alignD=%d:\n\tp = %x\n\tq = %x\n\td = %x\n\twant %x\n", n, alignP, alignQ, alignD, p, q, d, want)
} }
} }
} }