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193 lines
7.3 KiB
ArmAsm
193 lines
7.3 KiB
ArmAsm
//+build !noasm,!appengine
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// ARM64 version of SHA256
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//
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// Minio Cloud Storage, (C) 2016 Minio, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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//
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// Based on implementation as found in https://github.com/jocover/sha256-armv8
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//
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// Use github.com/minio/asm2plan9s on this file to assemble ARM instructions to
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// their Plan9 equivalents
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//
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TEXT ·blockArm(SB), 7, $0
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MOVD h+0(FP), R0
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MOVD message+24(FP), R1
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MOVD message_len+32(FP), R2 // length of message
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SUBS $64, R2
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BMI complete
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// Load constants table pointer
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MOVD $·constants(SB), R3
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// Cache constants table in registers v16 - v31
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WORD $0x4cdf2870 // ld1 {v16.4s-v19.4s}, [x3], #64
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WORD $0x4cdf7800 // ld1 {v0.4s}, [x0], #16
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WORD $0x4cdf2874 // ld1 {v20.4s-v23.4s}, [x3], #64
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WORD $0x4c407801 // ld1 {v1.4s}, [x0]
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WORD $0x4cdf2878 // ld1 {v24.4s-v27.4s}, [x3], #64
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WORD $0xd1004000 // sub x0, x0, #0x10
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WORD $0x4cdf287c // ld1 {v28.4s-v31.4s}, [x3], #64
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loop:
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// Main loop
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WORD $0x4cdf2025 // ld1 {v5.16b-v8.16b}, [x1], #64
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WORD $0x4ea01c02 // mov v2.16b, v0.16b
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WORD $0x4ea11c23 // mov v3.16b, v1.16b
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WORD $0x6e2008a5 // rev32 v5.16b, v5.16b
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WORD $0x6e2008c6 // rev32 v6.16b, v6.16b
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WORD $0x4eb084a9 // add v9.4s, v5.4s, v16.4s
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WORD $0x6e2008e7 // rev32 v7.16b, v7.16b
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WORD $0x4eb184ca // add v10.4s, v6.4s, v17.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e2828c5 // sha256su0 v5.4s, v6.4s
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WORD $0x6e200908 // rev32 v8.16b, v8.16b
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WORD $0x4eb284e9 // add v9.4s, v7.4s, v18.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x5e2828e6 // sha256su0 v6.4s, v7.4s
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WORD $0x5e0860e5 // sha256su1 v5.4s, v7.4s, v8.4s
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WORD $0x4eb3850a // add v10.4s, v8.4s, v19.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e282907 // sha256su0 v7.4s, v8.4s
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WORD $0x5e056106 // sha256su1 v6.4s, v8.4s, v5.4s
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WORD $0x4eb484a9 // add v9.4s, v5.4s, v20.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x5e2828a8 // sha256su0 v8.4s, v5.4s
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WORD $0x5e0660a7 // sha256su1 v7.4s, v5.4s, v6.4s
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WORD $0x4eb584ca // add v10.4s, v6.4s, v21.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e2828c5 // sha256su0 v5.4s, v6.4s
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WORD $0x5e0760c8 // sha256su1 v8.4s, v6.4s, v7.4s
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WORD $0x4eb684e9 // add v9.4s, v7.4s, v22.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x5e2828e6 // sha256su0 v6.4s, v7.4s
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WORD $0x5e0860e5 // sha256su1 v5.4s, v7.4s, v8.4s
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WORD $0x4eb7850a // add v10.4s, v8.4s, v23.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e282907 // sha256su0 v7.4s, v8.4s
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WORD $0x5e056106 // sha256su1 v6.4s, v8.4s, v5.4s
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WORD $0x4eb884a9 // add v9.4s, v5.4s, v24.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x5e2828a8 // sha256su0 v8.4s, v5.4s
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WORD $0x5e0660a7 // sha256su1 v7.4s, v5.4s, v6.4s
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WORD $0x4eb984ca // add v10.4s, v6.4s, v25.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e2828c5 // sha256su0 v5.4s, v6.4s
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WORD $0x5e0760c8 // sha256su1 v8.4s, v6.4s, v7.4s
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WORD $0x4eba84e9 // add v9.4s, v7.4s, v26.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x5e2828e6 // sha256su0 v6.4s, v7.4s
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WORD $0x5e0860e5 // sha256su1 v5.4s, v7.4s, v8.4s
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WORD $0x4ebb850a // add v10.4s, v8.4s, v27.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e282907 // sha256su0 v7.4s, v8.4s
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WORD $0x5e056106 // sha256su1 v6.4s, v8.4s, v5.4s
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WORD $0x4ebc84a9 // add v9.4s, v5.4s, v28.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x5e2828a8 // sha256su0 v8.4s, v5.4s
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WORD $0x5e0660a7 // sha256su1 v7.4s, v5.4s, v6.4s
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WORD $0x4ebd84ca // add v10.4s, v6.4s, v29.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x5e0760c8 // sha256su1 v8.4s, v6.4s, v7.4s
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WORD $0x4ebe84e9 // add v9.4s, v7.4s, v30.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x4ebf850a // add v10.4s, v8.4s, v31.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e094062 // sha256h q2, q3, v9.4s
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WORD $0x5e095083 // sha256h2 q3, q4, v9.4s
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WORD $0x4ea21c44 // mov v4.16b, v2.16b
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WORD $0x5e0a4062 // sha256h q2, q3, v10.4s
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WORD $0x5e0a5083 // sha256h2 q3, q4, v10.4s
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WORD $0x4ea38421 // add v1.4s, v1.4s, v3.4s
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WORD $0x4ea28400 // add v0.4s, v0.4s, v2.4s
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SUBS $64, R2
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BPL loop
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// Store result
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WORD $0x4c00a800 // st1 {v0.4s, v1.4s}, [x0]
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complete:
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RET
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// Constants table
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DATA ·constants+0x0(SB)/8, $0x71374491428a2f98
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DATA ·constants+0x8(SB)/8, $0xe9b5dba5b5c0fbcf
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DATA ·constants+0x10(SB)/8, $0x59f111f13956c25b
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DATA ·constants+0x18(SB)/8, $0xab1c5ed5923f82a4
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DATA ·constants+0x20(SB)/8, $0x12835b01d807aa98
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DATA ·constants+0x28(SB)/8, $0x550c7dc3243185be
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DATA ·constants+0x30(SB)/8, $0x80deb1fe72be5d74
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DATA ·constants+0x38(SB)/8, $0xc19bf1749bdc06a7
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DATA ·constants+0x40(SB)/8, $0xefbe4786e49b69c1
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DATA ·constants+0x48(SB)/8, $0x240ca1cc0fc19dc6
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DATA ·constants+0x50(SB)/8, $0x4a7484aa2de92c6f
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DATA ·constants+0x58(SB)/8, $0x76f988da5cb0a9dc
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DATA ·constants+0x60(SB)/8, $0xa831c66d983e5152
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DATA ·constants+0x68(SB)/8, $0xbf597fc7b00327c8
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DATA ·constants+0x70(SB)/8, $0xd5a79147c6e00bf3
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DATA ·constants+0x78(SB)/8, $0x1429296706ca6351
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DATA ·constants+0x80(SB)/8, $0x2e1b213827b70a85
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DATA ·constants+0x88(SB)/8, $0x53380d134d2c6dfc
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DATA ·constants+0x90(SB)/8, $0x766a0abb650a7354
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DATA ·constants+0x98(SB)/8, $0x92722c8581c2c92e
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DATA ·constants+0xa0(SB)/8, $0xa81a664ba2bfe8a1
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DATA ·constants+0xa8(SB)/8, $0xc76c51a3c24b8b70
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DATA ·constants+0xb0(SB)/8, $0xd6990624d192e819
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DATA ·constants+0xb8(SB)/8, $0x106aa070f40e3585
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DATA ·constants+0xc0(SB)/8, $0x1e376c0819a4c116
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DATA ·constants+0xc8(SB)/8, $0x34b0bcb52748774c
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DATA ·constants+0xd0(SB)/8, $0x4ed8aa4a391c0cb3
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DATA ·constants+0xd8(SB)/8, $0x682e6ff35b9cca4f
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DATA ·constants+0xe0(SB)/8, $0x78a5636f748f82ee
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DATA ·constants+0xe8(SB)/8, $0x8cc7020884c87814
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DATA ·constants+0xf0(SB)/8, $0xa4506ceb90befffa
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DATA ·constants+0xf8(SB)/8, $0xc67178f2bef9a3f7
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GLOBL ·constants(SB), 8, $256
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