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Optimize AesEngine_X86#414

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Optimize AesEngine_X86#414
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benaadams:AesEngine_X86

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@benaadams benaadams commented Jan 22, 2023

Produces very tight asm

; Method Encode256:ProcessRounds(byref):this
G_M000_IG01:                ;; offset=0000H
       sub      rsp, 40
       vzeroupper 

G_M000_IG02:                ;; offset=0007H
       mov      rax, gword ptr [rcx+10H]
       mov      ecx, dword ptr [rax+08H]
       cmp      ecx, 14
       jbe      G_M000_IG04
       vmovupd  xmm0, xmmword ptr [rdx]
       vpxor    xmm0, xmm0, xmmword ptr [rax+10H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+20H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+30H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+40H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+50H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+60H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+70H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+80H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+90H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+A0H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+B0H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+C0H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+D0H]
       vaesenc  xmm0, xmm0, xmmword ptr [rax+E0H]
       vaesenclast xmm0, xmm0, xmmword ptr [rax+F0H]
       vmovupd  xmmword ptr [rdx], xmm0

G_M000_IG03:                ;; offset=0090H
       add      rsp, 40
       ret      

G_M000_IG04:                ;; offset=0095H
       call     CORINFO_HELP_RNGCHKFAIL
       int3     
; Total bytes of code: 155

vs current

; Assembly listing for method AesEngine_X86:ProcessBlock(<unnamed>,int,<unnamed>,int):int:this
; 2 inlinees with PGO data; 22 single block inlinees; 7 inlinees without PGO data

G_M000_IG01:                ;; offset=0000H
       56                   push     rsi
       4883EC20             sub      rsp, 32
       C5F877               vzeroupper 
       8B442450             mov      eax, dword ptr [rsp+50H]
 
G_M000_IG02:                ;; offset=000CH
       448B5208             mov      r10d, dword ptr [rdx+08H]
       458D5AF0             lea      r11d, [r10-10H]
       453BD8               cmp      r11d, r8d
       0F8CB4050000         jl       G_M000_IG13
       458B5908             mov      r11d, dword ptr [r9+08H]
       418D73F0             lea      esi, [r11-10H]
       3BF0                 cmp      esi, eax
       0F8CE7050000         jl       G_M000_IG14
       458BD2               mov      r10d, r10d
       418BF0               mov      esi, r8d
       4883C610             add      rsi, 16
       4C3BD6               cmp      r10, rsi
       0F8251060000         jb       G_M000_IG16
       458BC0               mov      r8d, r8d
       4A8D540210           lea      rdx, bword ptr [rdx+r8+10H]
       C5F91002             vmovupd  xmm0, xmmword ptr [rdx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       83FA05               cmp      edx, 5
       0F87FE050000         ja       G_M000_IG15
       8BD2                 mov      edx, edx
       4C8D053F060000       lea      r8, [reloc @RWD00]
       458B0490             mov      r8d, dword ptr [r8+4*rdx]
       4C8D15A0FFFFFF       lea      r10, G_M000_IG02
       4D03C2               add      r8, r10
       41FFE0               jmp      r8
 
G_M000_IG03:                ;; offset=0072H
       488B09               mov      rcx, gword ptr [rcx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       85D2                 test     edx, edx
       0F8417060000         je       G_M000_IG17
       C5F9EF4110           vpxor    xmm0, xmm0, xmmword ptr [rcx+10H]
       83FA01               cmp      edx, 1
       0F8608060000         jbe      G_M000_IG17
       C4E279DE4120         vaesdec  xmm0, xmm0, xmmword ptr [rcx+20H]
       83FA02               cmp      edx, 2
       0F86F9050000         jbe      G_M000_IG17
       C4E279DE4130         vaesdec  xmm0, xmm0, xmmword ptr [rcx+30H]
       83FA03               cmp      edx, 3
       0F86EA050000         jbe      G_M000_IG17
       C4E279DE4140         vaesdec  xmm0, xmm0, xmmword ptr [rcx+40H]
       83FA04               cmp      edx, 4
       0F86DB050000         jbe      G_M000_IG17
       C4E279DE4150         vaesdec  xmm0, xmm0, xmmword ptr [rcx+50H]
       83FA05               cmp      edx, 5
       0F86CC050000         jbe      G_M000_IG17
       C4E279DE4160         vaesdec  xmm0, xmm0, xmmword ptr [rcx+60H]
       83FA06               cmp      edx, 6
       0F86BD050000         jbe      G_M000_IG17
       C4E279DE4170         vaesdec  xmm0, xmm0, xmmword ptr [rcx+70H]
       83FA07               cmp      edx, 7
       0F86AE050000         jbe      G_M000_IG17
       C4E279DE8180000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+80H]
       83FA08               cmp      edx, 8
       0F869C050000         jbe      G_M000_IG17
       C4E279DE8190000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+90H]
       83FA09               cmp      edx, 9
       0F868A050000         jbe      G_M000_IG17
       C4E279DE81A0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+A0H]
       83FA0A               cmp      edx, 10
       0F8678050000         jbe      G_M000_IG17
       C4E279DF81B0000000   vaesdeclast xmm0, xmm0, xmmword ptr [rcx+B0H]
       E97A040000           jmp      G_M000_IG11
 
G_M000_IG04:                ;; offset=012CH
       488B09               mov      rcx, gword ptr [rcx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       85D2                 test     edx, edx
       0F845C050000         je       G_M000_IG17
       C5F9EF4110           vpxor    xmm0, xmm0, xmmword ptr [rcx+10H]
       83FA01               cmp      edx, 1
       0F864D050000         jbe      G_M000_IG17
       C4E279DE4120         vaesdec  xmm0, xmm0, xmmword ptr [rcx+20H]
       83FA02               cmp      edx, 2
       0F863E050000         jbe      G_M000_IG17
       C4E279DE4130         vaesdec  xmm0, xmm0, xmmword ptr [rcx+30H]
       83FA03               cmp      edx, 3
       0F862F050000         jbe      G_M000_IG17
       C4E279DE4140         vaesdec  xmm0, xmm0, xmmword ptr [rcx+40H]
       83FA04               cmp      edx, 4
       0F8620050000         jbe      G_M000_IG17
       C4E279DE4150         vaesdec  xmm0, xmm0, xmmword ptr [rcx+50H]
       83FA05               cmp      edx, 5
       0F8611050000         jbe      G_M000_IG17
       C4E279DE4160         vaesdec  xmm0, xmm0, xmmword ptr [rcx+60H]
       83FA06               cmp      edx, 6
       0F8602050000         jbe      G_M000_IG17
       C4E279DE4170         vaesdec  xmm0, xmm0, xmmword ptr [rcx+70H]
       83FA07               cmp      edx, 7
       0F86F3040000         jbe      G_M000_IG17
       C4E279DE8180000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+80H]
       83FA08               cmp      edx, 8
       0F86E1040000         jbe      G_M000_IG17
       C4E279DE8190000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+90H]
       83FA09               cmp      edx, 9
       0F86CF040000         jbe      G_M000_IG17
       C4E279DE81A0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+A0H]
       83FA0A               cmp      edx, 10
       0F86BD040000         jbe      G_M000_IG17
       C4E279DE81B0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+B0H]
       83FA0B               cmp      edx, 11
       0F86AB040000         jbe      G_M000_IG17
       C4E279DE81C0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+C0H]
       83FA0C               cmp      edx, 12
       0F8699040000         jbe      G_M000_IG17
       C4E279DF81D0000000   vaesdeclast xmm0, xmm0, xmmword ptr [rcx+D0H]
       E99B030000           jmp      G_M000_IG11
 
G_M000_IG05:                ;; offset=020AH
       488B09               mov      rcx, gword ptr [rcx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       85D2                 test     edx, edx
       0F847D040000         je       G_M000_IG17
       C5F9EF4110           vpxor    xmm0, xmm0, xmmword ptr [rcx+10H]
       83FA01               cmp      edx, 1
       0F866E040000         jbe      G_M000_IG17
       C4E279DE4120         vaesdec  xmm0, xmm0, xmmword ptr [rcx+20H]
       83FA02               cmp      edx, 2
       0F865F040000         jbe      G_M000_IG17
       C4E279DE4130         vaesdec  xmm0, xmm0, xmmword ptr [rcx+30H]
       83FA03               cmp      edx, 3
       0F8650040000         jbe      G_M000_IG17
       C4E279DE4140         vaesdec  xmm0, xmm0, xmmword ptr [rcx+40H]
       83FA04               cmp      edx, 4
       0F8641040000         jbe      G_M000_IG17
       C4E279DE4150         vaesdec  xmm0, xmm0, xmmword ptr [rcx+50H]
       83FA05               cmp      edx, 5
       0F8632040000         jbe      G_M000_IG17
       C4E279DE4160         vaesdec  xmm0, xmm0, xmmword ptr [rcx+60H]
       83FA06               cmp      edx, 6
       0F8623040000         jbe      G_M000_IG17
       C4E279DE4170         vaesdec  xmm0, xmm0, xmmword ptr [rcx+70H]
       83FA07               cmp      edx, 7
       0F8614040000         jbe      G_M000_IG17
       C4E279DE8180000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+80H]
       83FA08               cmp      edx, 8
       0F8602040000         jbe      G_M000_IG17
       C4E279DE8190000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+90H]
       83FA09               cmp      edx, 9
       0F86F0030000         jbe      G_M000_IG17
       C4E279DE81A0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+A0H]
       83FA0A               cmp      edx, 10
       0F86DE030000         jbe      G_M000_IG17
       C4E279DE81B0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+B0H]
       83FA0B               cmp      edx, 11
       0F86CC030000         jbe      G_M000_IG17
       C4E279DE81C0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+C0H]
       83FA0C               cmp      edx, 12
       0F86BA030000         jbe      G_M000_IG17
       C4E279DE81D0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+D0H]
       83FA0D               cmp      edx, 13
       0F86A8030000         jbe      G_M000_IG17
       C4E279DE81E0000000   vaesdec  xmm0, xmm0, xmmword ptr [rcx+E0H]
       83FA0E               cmp      edx, 14
 
G_M000_IG06:                ;; offset=02F8H
       0F8696030000         jbe      G_M000_IG17
       C4E279DF81F0000000   vaesdeclast xmm0, xmm0, xmmword ptr [rcx+F0H]
       E998020000           jmp      G_M000_IG11
 
G_M000_IG07:                ;; offset=030CH
       488B09               mov      rcx, gword ptr [rcx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       85D2                 test     edx, edx
       0F847A030000         je       G_M000_IG17
       C5F9EF4110           vpxor    xmm0, xmm0, xmmword ptr [rcx+10H]
       83FA01               cmp      edx, 1
       0F866B030000         jbe      G_M000_IG17
       C4E279DC4120         vaesenc  xmm0, xmm0, xmmword ptr [rcx+20H]
       83FA02               cmp      edx, 2
       0F865C030000         jbe      G_M000_IG17
       C4E279DC4130         vaesenc  xmm0, xmm0, xmmword ptr [rcx+30H]
       83FA03               cmp      edx, 3
       0F864D030000         jbe      G_M000_IG17
       C4E279DC4140         vaesenc  xmm0, xmm0, xmmword ptr [rcx+40H]
       83FA04               cmp      edx, 4
       0F863E030000         jbe      G_M000_IG17
       C4E279DC4150         vaesenc  xmm0, xmm0, xmmword ptr [rcx+50H]
       83FA05               cmp      edx, 5
       0F862F030000         jbe      G_M000_IG17
       C4E279DC4160         vaesenc  xmm0, xmm0, xmmword ptr [rcx+60H]
       83FA06               cmp      edx, 6
       0F8620030000         jbe      G_M000_IG17
       C4E279DC4170         vaesenc  xmm0, xmm0, xmmword ptr [rcx+70H]
       83FA07               cmp      edx, 7
       0F8611030000         jbe      G_M000_IG17
       C4E279DC8180000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+80H]
       83FA08               cmp      edx, 8
       0F86FF020000         jbe      G_M000_IG17
       C4E279DC8190000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+90H]
       83FA09               cmp      edx, 9
       0F86ED020000         jbe      G_M000_IG17
       C4E279DC81A0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+A0H]
       83FA0A               cmp      edx, 10
       0F86DB020000         jbe      G_M000_IG17
       C4E279DD81B0000000   vaesenclast xmm0, xmm0, xmmword ptr [rcx+B0H]
       E9DD010000           jmp      G_M000_IG11
 
G_M000_IG08:                ;; offset=03C6H
       488B09               mov      rcx, gword ptr [rcx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       85D2                 test     edx, edx
       0F84BF020000         je       G_M000_IG17
       C5F9EF4110           vpxor    xmm0, xmm0, xmmword ptr [rcx+10H]
       83FA01               cmp      edx, 1
       0F86B0020000         jbe      G_M000_IG17
       C4E279DC4120         vaesenc  xmm0, xmm0, xmmword ptr [rcx+20H]
       83FA02               cmp      edx, 2
       0F86A1020000         jbe      G_M000_IG17
       C4E279DC4130         vaesenc  xmm0, xmm0, xmmword ptr [rcx+30H]
       83FA03               cmp      edx, 3
       0F8692020000         jbe      G_M000_IG17
       C4E279DC4140         vaesenc  xmm0, xmm0, xmmword ptr [rcx+40H]
       83FA04               cmp      edx, 4
       0F8683020000         jbe      G_M000_IG17
       C4E279DC4150         vaesenc  xmm0, xmm0, xmmword ptr [rcx+50H]
       83FA05               cmp      edx, 5
       0F8674020000         jbe      G_M000_IG17
       C4E279DC4160         vaesenc  xmm0, xmm0, xmmword ptr [rcx+60H]
       83FA06               cmp      edx, 6
       0F8665020000         jbe      G_M000_IG17
       C4E279DC4170         vaesenc  xmm0, xmm0, xmmword ptr [rcx+70H]
       83FA07               cmp      edx, 7
       0F8656020000         jbe      G_M000_IG17
       C4E279DC8180000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+80H]
       83FA08               cmp      edx, 8
       0F8644020000         jbe      G_M000_IG17
       C4E279DC8190000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+90H]
       83FA09               cmp      edx, 9
       0F8632020000         jbe      G_M000_IG17
       C4E279DC81A0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+A0H]
       83FA0A               cmp      edx, 10
       0F8620020000         jbe      G_M000_IG17
       C4E279DC81B0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+B0H]
       83FA0B               cmp      edx, 11
       0F860E020000         jbe      G_M000_IG17
       C4E279DC81C0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+C0H]
       83FA0C               cmp      edx, 12
       0F86FC010000         jbe      G_M000_IG17
       C4E279DD81D0000000   vaesenclast xmm0, xmm0, xmmword ptr [rcx+D0H]
       E9FE000000           jmp      G_M000_IG11
 
G_M000_IG09:                ;; offset=04A4H
       488B09               mov      rcx, gword ptr [rcx]
       8B5108               mov      edx, dword ptr [rcx+08H]
       85D2                 test     edx, edx
       0F84E0010000         je       G_M000_IG17
       C5F9EF4110           vpxor    xmm0, xmm0, xmmword ptr [rcx+10H]
       83FA01               cmp      edx, 1
       0F86D1010000         jbe      G_M000_IG17
       C4E279DC4120         vaesenc  xmm0, xmm0, xmmword ptr [rcx+20H]
       83FA02               cmp      edx, 2
       0F86C2010000         jbe      G_M000_IG17
       C4E279DC4130         vaesenc  xmm0, xmm0, xmmword ptr [rcx+30H]
       83FA03               cmp      edx, 3
       0F86B3010000         jbe      G_M000_IG17
       C4E279DC4140         vaesenc  xmm0, xmm0, xmmword ptr [rcx+40H]
       83FA04               cmp      edx, 4
       0F86A4010000         jbe      G_M000_IG17
       C4E279DC4150         vaesenc  xmm0, xmm0, xmmword ptr [rcx+50H]
       83FA05               cmp      edx, 5
       0F8695010000         jbe      G_M000_IG17
       C4E279DC4160         vaesenc  xmm0, xmm0, xmmword ptr [rcx+60H]
       83FA06               cmp      edx, 6
       0F8686010000         jbe      G_M000_IG17
       C4E279DC4170         vaesenc  xmm0, xmm0, xmmword ptr [rcx+70H]
       83FA07               cmp      edx, 7
       0F8677010000         jbe      G_M000_IG17
       C4E279DC8180000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+80H]
       83FA08               cmp      edx, 8
       0F8665010000         jbe      G_M000_IG17
       C4E279DC8190000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+90H]
       83FA09               cmp      edx, 9
       0F8653010000         jbe      G_M000_IG17
       C4E279DC81A0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+A0H]
       83FA0A               cmp      edx, 10
       0F8641010000         jbe      G_M000_IG17
       C4E279DC81B0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+B0H]
       83FA0B               cmp      edx, 11
       0F862F010000         jbe      G_M000_IG17
       C4E279DC81C0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+C0H]
       83FA0C               cmp      edx, 12
       0F861D010000         jbe      G_M000_IG17
       C4E279DC81D0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+D0H]
       83FA0D               cmp      edx, 13
       0F860B010000         jbe      G_M000_IG17
       C4E279DC81E0000000   vaesenc  xmm0, xmm0, xmmword ptr [rcx+E0H]
       83FA0E               cmp      edx, 14
 
G_M000_IG10:                ;; offset=0592H
       0F86F9000000         jbe      G_M000_IG17
       C4E279DD81F0000000   vaesenclast xmm0, xmm0, xmmword ptr [rcx+F0H]
 
G_M000_IG11:                ;; offset=05A1H
       418BCB               mov      ecx, r11d
       8BD0                 mov      edx, eax
       4883C210             add      rdx, 16
       483BCA               cmp      rcx, rdx
       0F82D7000000         jb       G_M000_IG16
       8BC0                 mov      eax, eax
       498D440110           lea      rax, bword ptr [r9+rax+10H]
       C5F91100             vmovupd  xmmword ptr [rax], xmm0
       B810000000           mov      eax, 16
 
G_M000_IG12:                ;; offset=05C3H
       4883C420             add      rsp, 32
       5E                   pop      rsi
       C3                   ret      
 
G_M000_IG13:                ;; offset=05C9H
       48B9482063FEFE7F0000 mov      rcx, 0x7FFEFE632048
       E8F8CFAE5F           call     CORINFO_HELP_NEWSFAST
       488BF0               mov      rsi, rax
       488BCE               mov      rcx, rsi
       FF15AC380900         call     [System.Exception:.ctor():this]
       B901000000           mov      ecx, 1
       48BAF0BC6DFEFE7F0000 mov      rdx, 0x7FFEFE6DBCF0
       E828FFA65F           call     CORINFO_HELP_STRCNS
       488D4E10             lea      rcx, bword ptr [rsi+10H]
       488BD0               mov      rdx, rax
       E89CDCE2FF           call     CORINFO_HELP_ASSIGN_REF
       488BCE               mov      rcx, rsi
       E87466A45F           call     CORINFO_HELP_THROW
 
G_M000_IG14:                ;; offset=060CH
       48B9482063FEFE7F0000 mov      rcx, 0x7FFEFE632048
       E8B5CFAE5F           call     CORINFO_HELP_NEWSFAST
       488BF0               mov      rsi, rax
       488BCE               mov      rcx, rsi
       FF1569380900         call     [System.Exception:.ctor():this]
       B92F000000           mov      ecx, 47
       48BAF0BC6DFEFE7F0000 mov      rdx, 0x7FFEFE6DBCF0
       E8E5FEA65F           call     CORINFO_HELP_STRCNS
       488D4E10             lea      rcx, bword ptr [rsi+10H]
       488BD0               mov      rdx, rax
       E859DCE2FF           call     CORINFO_HELP_ASSIGN_REF
       488BCE               mov      rcx, rsi
       E83166A45F           call     CORINFO_HELP_THROW
 
G_M000_IG15:                ;; offset=064FH
       48B980BC6DFEFE7F0000 mov      rcx, 0x7FFEFE6DBC80
       E872CFAE5F           call     CORINFO_HELP_NEWSFAST
       488BF0               mov      rsi, rax
       B9FE0F0000           mov      ecx, 0xFFE
       48BAF0BC6DFEFE7F0000 mov      rdx, 0x7FFEFE6DBCF0
       E8ABFEA65F           call     CORINFO_HELP_STRCNS
       488BD0               mov      rdx, rax
       488BCE               mov      rcx, rsi
       FF1597D11100         call     [System.InvalidOperationException:.ctor(System.String):this]
       488BCE               mov      rcx, rsi
       E8F765A45F           call     CORINFO_HELP_THROW
 
G_M000_IG16:                ;; offset=0689H
       FF15490C1100         call     [System.ThrowHelper:ThrowArgumentOutOfRangeException()]
       CC                   int3     
 
G_M000_IG17:                ;; offset=0690H
       E82B67C15F           call     CORINFO_HELP_RNGCHKFAIL
       CC                   int3     
 
RWD00  	dd	00000066h ; case G_M000_IG03
       	dd	00000120h ; case G_M000_IG04
       	dd	000001FEh ; case G_M000_IG05
       	dd	00000300h ; case G_M000_IG07
       	dd	000003BAh ; case G_M000_IG08
       	dd	00000498h ; case G_M000_IG09

; Total bytes of code 1686

@benaadams benaadams mentioned this pull request Jan 22, 2023
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@peterdettman
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peterdettman commented Feb 10, 2023

Thanks, I've incorporated a couple of the improvements from this PR (the bounds check elimination and non-ref locals).

The Unsafe load/store code definitely improves performance further, we might look at those later (currently being excessively cautious about Unsafe).

Using virtual dispatch doesn't show much difference for me, but it's certainly true that in some future API it would be better to just have different implementation classes for encrypt/decrypt per key size.

pull bot pushed a commit to Mu-L/bc-csharp that referenced this pull request Feb 12, 2023
@peterdettman
AesEngine_X86 perf. opts.
233a8fe 
- based on suggestions by https://github.com/benaadams
- see bcgit#414
@rubo rubo mentioned this pull request Jun 2, 2024
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@benaadams @peterdettman