574 lines
14 KiB
ArmAsm
574 lines
14 KiB
ArmAsm
// This file is generated from a similarly-named Perl script in the BoringSSL
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// source tree. Do not edit by hand.
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#if !defined(__has_feature)
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#define __has_feature(x) 0
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#endif
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#if __has_feature(memory_sanitizer) && !defined(OPENSSL_NO_ASM)
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#define OPENSSL_NO_ASM
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#endif
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#if !defined(OPENSSL_NO_ASM)
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#if defined(BORINGSSL_PREFIX)
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#include <boringssl_prefix_symbols_asm.h>
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#endif
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#include <openssl/arm_arch.h>
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#if __ARM_MAX_ARCH__>=7
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.text
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.globl _gcm_init_v8
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.private_extern _gcm_init_v8
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.align 4
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_gcm_init_v8:
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AARCH64_VALID_CALL_TARGET
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ld1 {v17.2d},[x1] //load input H
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movi v19.16b,#0xe1
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shl v19.2d,v19.2d,#57 //0xc2.0
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ext v3.16b,v17.16b,v17.16b,#8
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ushr v18.2d,v19.2d,#63
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dup v17.4s,v17.s[1]
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ext v16.16b,v18.16b,v19.16b,#8 //t0=0xc2....01
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ushr v18.2d,v3.2d,#63
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sshr v17.4s,v17.4s,#31 //broadcast carry bit
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and v18.16b,v18.16b,v16.16b
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shl v3.2d,v3.2d,#1
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ext v18.16b,v18.16b,v18.16b,#8
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and v16.16b,v16.16b,v17.16b
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orr v3.16b,v3.16b,v18.16b //H<<<=1
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eor v20.16b,v3.16b,v16.16b //twisted H
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st1 {v20.2d},[x0],#16 //store Htable[0]
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//calculate H^2
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ext v16.16b,v20.16b,v20.16b,#8 //Karatsuba pre-processing
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pmull v0.1q,v20.1d,v20.1d
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eor v16.16b,v16.16b,v20.16b
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pmull2 v2.1q,v20.2d,v20.2d
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pmull v1.1q,v16.1d,v16.1d
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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eor v1.16b,v1.16b,v18.16b
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pmull v18.1q,v0.1d,v19.1d //1st phase
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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eor v0.16b,v1.16b,v18.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v22.16b,v0.16b,v18.16b
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ext v17.16b,v22.16b,v22.16b,#8 //Karatsuba pre-processing
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eor v17.16b,v17.16b,v22.16b
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ext v21.16b,v16.16b,v17.16b,#8 //pack Karatsuba pre-processed
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st1 {v21.2d,v22.2d},[x0],#32 //store Htable[1..2]
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//calculate H^3 and H^4
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pmull v0.1q,v20.1d, v22.1d
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pmull v5.1q,v22.1d,v22.1d
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pmull2 v2.1q,v20.2d, v22.2d
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pmull2 v7.1q,v22.2d,v22.2d
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pmull v1.1q,v16.1d,v17.1d
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pmull v6.1q,v17.1d,v17.1d
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ext v16.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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ext v17.16b,v5.16b,v7.16b,#8
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v16.16b
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eor v4.16b,v5.16b,v7.16b
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eor v6.16b,v6.16b,v17.16b
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eor v1.16b,v1.16b,v18.16b
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pmull v18.1q,v0.1d,v19.1d //1st phase
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eor v6.16b,v6.16b,v4.16b
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pmull v4.1q,v5.1d,v19.1d
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ins v2.d[0],v1.d[1]
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ins v7.d[0],v6.d[1]
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ins v1.d[1],v0.d[0]
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ins v6.d[1],v5.d[0]
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eor v0.16b,v1.16b,v18.16b
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eor v5.16b,v6.16b,v4.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase
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ext v4.16b,v5.16b,v5.16b,#8
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pmull v0.1q,v0.1d,v19.1d
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pmull v5.1q,v5.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v4.16b,v4.16b,v7.16b
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eor v20.16b, v0.16b,v18.16b //H^3
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eor v22.16b,v5.16b,v4.16b //H^4
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ext v16.16b,v20.16b, v20.16b,#8 //Karatsuba pre-processing
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ext v17.16b,v22.16b,v22.16b,#8
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eor v16.16b,v16.16b,v20.16b
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eor v17.16b,v17.16b,v22.16b
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ext v21.16b,v16.16b,v17.16b,#8 //pack Karatsuba pre-processed
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st1 {v20.2d,v21.2d,v22.2d},[x0] //store Htable[3..5]
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ret
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.globl _gcm_gmult_v8
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.private_extern _gcm_gmult_v8
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.align 4
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_gcm_gmult_v8:
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AARCH64_VALID_CALL_TARGET
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ld1 {v17.2d},[x0] //load Xi
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movi v19.16b,#0xe1
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ld1 {v20.2d,v21.2d},[x1] //load twisted H, ...
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shl v19.2d,v19.2d,#57
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#ifndef __AARCH64EB__
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rev64 v17.16b,v17.16b
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#endif
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ext v3.16b,v17.16b,v17.16b,#8
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pmull v0.1q,v20.1d,v3.1d //H.lo·Xi.lo
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eor v17.16b,v17.16b,v3.16b //Karatsuba pre-processing
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pmull2 v2.1q,v20.2d,v3.2d //H.hi·Xi.hi
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pmull v1.1q,v21.1d,v17.1d //(H.lo+H.hi)·(Xi.lo+Xi.hi)
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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eor v1.16b,v1.16b,v18.16b
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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eor v0.16b,v1.16b,v18.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v0.16b,v0.16b,v18.16b
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#ifndef __AARCH64EB__
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rev64 v0.16b,v0.16b
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#endif
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ext v0.16b,v0.16b,v0.16b,#8
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st1 {v0.2d},[x0] //write out Xi
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ret
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.globl _gcm_ghash_v8
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.private_extern _gcm_ghash_v8
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.align 4
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_gcm_ghash_v8:
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AARCH64_VALID_CALL_TARGET
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cmp x3,#64
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b.hs Lgcm_ghash_v8_4x
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ld1 {v0.2d},[x0] //load [rotated] Xi
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//"[rotated]" means that
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//loaded value would have
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//to be rotated in order to
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//make it appear as in
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//algorithm specification
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subs x3,x3,#32 //see if x3 is 32 or larger
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mov x12,#16 //x12 is used as post-
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//increment for input pointer;
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//as loop is modulo-scheduled
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//x12 is zeroed just in time
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//to preclude overstepping
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//inp[len], which means that
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//last block[s] are actually
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//loaded twice, but last
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//copy is not processed
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ld1 {v20.2d,v21.2d},[x1],#32 //load twisted H, ..., H^2
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movi v19.16b,#0xe1
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ld1 {v22.2d},[x1]
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csel x12,xzr,x12,eq //is it time to zero x12?
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ext v0.16b,v0.16b,v0.16b,#8 //rotate Xi
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ld1 {v16.2d},[x2],#16 //load [rotated] I[0]
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shl v19.2d,v19.2d,#57 //compose 0xc2.0 constant
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#ifndef __AARCH64EB__
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rev64 v16.16b,v16.16b
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rev64 v0.16b,v0.16b
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#endif
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ext v3.16b,v16.16b,v16.16b,#8 //rotate I[0]
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b.lo Lodd_tail_v8 //x3 was less than 32
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ld1 {v17.2d},[x2],x12 //load [rotated] I[1]
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#ifndef __AARCH64EB__
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rev64 v17.16b,v17.16b
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#endif
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ext v7.16b,v17.16b,v17.16b,#8
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eor v3.16b,v3.16b,v0.16b //I[i]^=Xi
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pmull v4.1q,v20.1d,v7.1d //H·Ii+1
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eor v17.16b,v17.16b,v7.16b //Karatsuba pre-processing
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pmull2 v6.1q,v20.2d,v7.2d
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b Loop_mod2x_v8
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.align 4
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Loop_mod2x_v8:
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ext v18.16b,v3.16b,v3.16b,#8
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subs x3,x3,#32 //is there more data?
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pmull v0.1q,v22.1d,v3.1d //H^2.lo·Xi.lo
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csel x12,xzr,x12,lo //is it time to zero x12?
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pmull v5.1q,v21.1d,v17.1d
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eor v18.16b,v18.16b,v3.16b //Karatsuba pre-processing
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pmull2 v2.1q,v22.2d,v3.2d //H^2.hi·Xi.hi
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eor v0.16b,v0.16b,v4.16b //accumulate
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pmull2 v1.1q,v21.2d,v18.2d //(H^2.lo+H^2.hi)·(Xi.lo+Xi.hi)
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ld1 {v16.2d},[x2],x12 //load [rotated] I[i+2]
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eor v2.16b,v2.16b,v6.16b
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csel x12,xzr,x12,eq //is it time to zero x12?
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eor v1.16b,v1.16b,v5.16b
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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ld1 {v17.2d},[x2],x12 //load [rotated] I[i+3]
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#ifndef __AARCH64EB__
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rev64 v16.16b,v16.16b
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#endif
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eor v1.16b,v1.16b,v18.16b
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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#ifndef __AARCH64EB__
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rev64 v17.16b,v17.16b
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#endif
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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ext v7.16b,v17.16b,v17.16b,#8
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ext v3.16b,v16.16b,v16.16b,#8
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eor v0.16b,v1.16b,v18.16b
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pmull v4.1q,v20.1d,v7.1d //H·Ii+1
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eor v3.16b,v3.16b,v2.16b //accumulate v3.16b early
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v3.16b,v3.16b,v18.16b
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eor v17.16b,v17.16b,v7.16b //Karatsuba pre-processing
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eor v3.16b,v3.16b,v0.16b
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pmull2 v6.1q,v20.2d,v7.2d
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b.hs Loop_mod2x_v8 //there was at least 32 more bytes
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eor v2.16b,v2.16b,v18.16b
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ext v3.16b,v16.16b,v16.16b,#8 //re-construct v3.16b
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adds x3,x3,#32 //re-construct x3
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eor v0.16b,v0.16b,v2.16b //re-construct v0.16b
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b.eq Ldone_v8 //is x3 zero?
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Lodd_tail_v8:
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ext v18.16b,v0.16b,v0.16b,#8
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eor v3.16b,v3.16b,v0.16b //inp^=Xi
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eor v17.16b,v16.16b,v18.16b //v17.16b is rotated inp^Xi
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pmull v0.1q,v20.1d,v3.1d //H.lo·Xi.lo
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eor v17.16b,v17.16b,v3.16b //Karatsuba pre-processing
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pmull2 v2.1q,v20.2d,v3.2d //H.hi·Xi.hi
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pmull v1.1q,v21.1d,v17.1d //(H.lo+H.hi)·(Xi.lo+Xi.hi)
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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eor v1.16b,v1.16b,v18.16b
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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eor v0.16b,v1.16b,v18.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v0.16b,v0.16b,v18.16b
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Ldone_v8:
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#ifndef __AARCH64EB__
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rev64 v0.16b,v0.16b
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#endif
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ext v0.16b,v0.16b,v0.16b,#8
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st1 {v0.2d},[x0] //write out Xi
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ret
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.align 4
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gcm_ghash_v8_4x:
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Lgcm_ghash_v8_4x:
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ld1 {v0.2d},[x0] //load [rotated] Xi
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ld1 {v20.2d,v21.2d,v22.2d},[x1],#48 //load twisted H, ..., H^2
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movi v19.16b,#0xe1
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ld1 {v26.2d,v27.2d,v28.2d},[x1] //load twisted H^3, ..., H^4
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shl v19.2d,v19.2d,#57 //compose 0xc2.0 constant
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ld1 {v4.2d,v5.2d,v6.2d,v7.2d},[x2],#64
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#ifndef __AARCH64EB__
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rev64 v0.16b,v0.16b
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rev64 v5.16b,v5.16b
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rev64 v6.16b,v6.16b
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rev64 v7.16b,v7.16b
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rev64 v4.16b,v4.16b
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#endif
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ext v25.16b,v7.16b,v7.16b,#8
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ext v24.16b,v6.16b,v6.16b,#8
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ext v23.16b,v5.16b,v5.16b,#8
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pmull v29.1q,v20.1d,v25.1d //H·Ii+3
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eor v7.16b,v7.16b,v25.16b
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pmull2 v31.1q,v20.2d,v25.2d
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pmull v30.1q,v21.1d,v7.1d
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pmull v16.1q,v22.1d,v24.1d //H^2·Ii+2
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eor v6.16b,v6.16b,v24.16b
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pmull2 v24.1q,v22.2d,v24.2d
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pmull2 v6.1q,v21.2d,v6.2d
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eor v29.16b,v29.16b,v16.16b
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eor v31.16b,v31.16b,v24.16b
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eor v30.16b,v30.16b,v6.16b
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pmull v7.1q,v26.1d,v23.1d //H^3·Ii+1
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eor v5.16b,v5.16b,v23.16b
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pmull2 v23.1q,v26.2d,v23.2d
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pmull v5.1q,v27.1d,v5.1d
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eor v29.16b,v29.16b,v7.16b
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eor v31.16b,v31.16b,v23.16b
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eor v30.16b,v30.16b,v5.16b
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subs x3,x3,#128
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b.lo Ltail4x
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b Loop4x
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.align 4
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Loop4x:
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eor v16.16b,v4.16b,v0.16b
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ld1 {v4.2d,v5.2d,v6.2d,v7.2d},[x2],#64
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ext v3.16b,v16.16b,v16.16b,#8
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#ifndef __AARCH64EB__
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rev64 v5.16b,v5.16b
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rev64 v6.16b,v6.16b
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rev64 v7.16b,v7.16b
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rev64 v4.16b,v4.16b
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#endif
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pmull v0.1q,v28.1d,v3.1d //H^4·(Xi+Ii)
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eor v16.16b,v16.16b,v3.16b
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pmull2 v2.1q,v28.2d,v3.2d
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ext v25.16b,v7.16b,v7.16b,#8
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pmull2 v1.1q,v27.2d,v16.2d
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eor v0.16b,v0.16b,v29.16b
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eor v2.16b,v2.16b,v31.16b
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ext v24.16b,v6.16b,v6.16b,#8
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eor v1.16b,v1.16b,v30.16b
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ext v23.16b,v5.16b,v5.16b,#8
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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pmull v29.1q,v20.1d,v25.1d //H·Ii+3
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eor v7.16b,v7.16b,v25.16b
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eor v1.16b,v1.16b,v17.16b
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pmull2 v31.1q,v20.2d,v25.2d
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eor v1.16b,v1.16b,v18.16b
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pmull v30.1q,v21.1d,v7.1d
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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pmull v16.1q,v22.1d,v24.1d //H^2·Ii+2
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eor v6.16b,v6.16b,v24.16b
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pmull2 v24.1q,v22.2d,v24.2d
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eor v0.16b,v1.16b,v18.16b
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pmull2 v6.1q,v21.2d,v6.2d
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eor v29.16b,v29.16b,v16.16b
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eor v31.16b,v31.16b,v24.16b
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eor v30.16b,v30.16b,v6.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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pmull v7.1q,v26.1d,v23.1d //H^3·Ii+1
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eor v5.16b,v5.16b,v23.16b
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eor v18.16b,v18.16b,v2.16b
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pmull2 v23.1q,v26.2d,v23.2d
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pmull v5.1q,v27.1d,v5.1d
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eor v0.16b,v0.16b,v18.16b
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eor v29.16b,v29.16b,v7.16b
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eor v31.16b,v31.16b,v23.16b
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ext v0.16b,v0.16b,v0.16b,#8
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eor v30.16b,v30.16b,v5.16b
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subs x3,x3,#64
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b.hs Loop4x
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Ltail4x:
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eor v16.16b,v4.16b,v0.16b
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ext v3.16b,v16.16b,v16.16b,#8
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pmull v0.1q,v28.1d,v3.1d //H^4·(Xi+Ii)
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eor v16.16b,v16.16b,v3.16b
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pmull2 v2.1q,v28.2d,v3.2d
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pmull2 v1.1q,v27.2d,v16.2d
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eor v0.16b,v0.16b,v29.16b
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eor v2.16b,v2.16b,v31.16b
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eor v1.16b,v1.16b,v30.16b
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adds x3,x3,#64
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b.eq Ldone4x
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cmp x3,#32
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b.lo Lone
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b.eq Ltwo
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Lthree:
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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ld1 {v4.2d,v5.2d,v6.2d},[x2]
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eor v1.16b,v1.16b,v18.16b
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#ifndef __AARCH64EB__
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rev64 v5.16b,v5.16b
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rev64 v6.16b,v6.16b
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rev64 v4.16b,v4.16b
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#endif
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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ext v24.16b,v6.16b,v6.16b,#8
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ext v23.16b,v5.16b,v5.16b,#8
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eor v0.16b,v1.16b,v18.16b
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pmull v29.1q,v20.1d,v24.1d //H·Ii+2
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eor v6.16b,v6.16b,v24.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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pmull2 v31.1q,v20.2d,v24.2d
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pmull v30.1q,v21.1d,v6.1d
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eor v0.16b,v0.16b,v18.16b
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pmull v7.1q,v22.1d,v23.1d //H^2·Ii+1
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eor v5.16b,v5.16b,v23.16b
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ext v0.16b,v0.16b,v0.16b,#8
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pmull2 v23.1q,v22.2d,v23.2d
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eor v16.16b,v4.16b,v0.16b
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pmull2 v5.1q,v21.2d,v5.2d
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ext v3.16b,v16.16b,v16.16b,#8
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eor v29.16b,v29.16b,v7.16b
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eor v31.16b,v31.16b,v23.16b
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eor v30.16b,v30.16b,v5.16b
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pmull v0.1q,v26.1d,v3.1d //H^3·(Xi+Ii)
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eor v16.16b,v16.16b,v3.16b
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pmull2 v2.1q,v26.2d,v3.2d
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pmull v1.1q,v27.1d,v16.1d
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eor v0.16b,v0.16b,v29.16b
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eor v2.16b,v2.16b,v31.16b
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eor v1.16b,v1.16b,v30.16b
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b Ldone4x
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.align 4
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Ltwo:
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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ld1 {v4.2d,v5.2d},[x2]
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eor v1.16b,v1.16b,v18.16b
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#ifndef __AARCH64EB__
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rev64 v5.16b,v5.16b
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rev64 v4.16b,v4.16b
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#endif
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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ext v23.16b,v5.16b,v5.16b,#8
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eor v0.16b,v1.16b,v18.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v0.16b,v0.16b,v18.16b
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ext v0.16b,v0.16b,v0.16b,#8
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pmull v29.1q,v20.1d,v23.1d //H·Ii+1
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eor v5.16b,v5.16b,v23.16b
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eor v16.16b,v4.16b,v0.16b
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ext v3.16b,v16.16b,v16.16b,#8
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pmull2 v31.1q,v20.2d,v23.2d
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pmull v30.1q,v21.1d,v5.1d
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pmull v0.1q,v22.1d,v3.1d //H^2·(Xi+Ii)
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eor v16.16b,v16.16b,v3.16b
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pmull2 v2.1q,v22.2d,v3.2d
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pmull2 v1.1q,v21.2d,v16.2d
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eor v0.16b,v0.16b,v29.16b
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eor v2.16b,v2.16b,v31.16b
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eor v1.16b,v1.16b,v30.16b
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b Ldone4x
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.align 4
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Lone:
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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ld1 {v4.2d},[x2]
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eor v1.16b,v1.16b,v18.16b
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#ifndef __AARCH64EB__
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rev64 v4.16b,v4.16b
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#endif
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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eor v0.16b,v1.16b,v18.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v0.16b,v0.16b,v18.16b
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ext v0.16b,v0.16b,v0.16b,#8
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eor v16.16b,v4.16b,v0.16b
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ext v3.16b,v16.16b,v16.16b,#8
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pmull v0.1q,v20.1d,v3.1d
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eor v16.16b,v16.16b,v3.16b
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pmull2 v2.1q,v20.2d,v3.2d
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pmull v1.1q,v21.1d,v16.1d
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Ldone4x:
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ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
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eor v18.16b,v0.16b,v2.16b
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eor v1.16b,v1.16b,v17.16b
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eor v1.16b,v1.16b,v18.16b
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pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
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ins v2.d[0],v1.d[1]
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ins v1.d[1],v0.d[0]
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eor v0.16b,v1.16b,v18.16b
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ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
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pmull v0.1q,v0.1d,v19.1d
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eor v18.16b,v18.16b,v2.16b
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eor v0.16b,v0.16b,v18.16b
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ext v0.16b,v0.16b,v0.16b,#8
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#ifndef __AARCH64EB__
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rev64 v0.16b,v0.16b
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#endif
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st1 {v0.2d},[x0] //write out Xi
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ret
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.byte 71,72,65,83,72,32,102,111,114,32,65,82,77,118,56,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
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.align 2
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.align 2
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#endif
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#endif // !OPENSSL_NO_ASM
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