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Check-in [962c8e03cc]
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| Comment: | {6324} another fix for IsValidUtf8Avx2() on Win64 - wrong conditional was used ;) |
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| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
962c8e03ccf0d54944a471e372b7dbae |
| User & Date: | ab 2021-09-15 06:36:14 |
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2021-09-23
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| 19:22 | {6325} let TSQLDBPostgresConnection handle 'host:port' as ServerName - backport of https://github.com/synopse/mORMot2/commit/0972493b35efe169e9372d245f793074b23999b5 check-in: 6b8d504b46 user: ab tags: trunk | |
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2021-09-15
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| 06:36 | {6324} another fix for IsValidUtf8Avx2() on Win64 - wrong conditional was used ;) check-in: 962c8e03cc user: ab tags: trunk | |
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2021-09-14
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| 15:52 | {6323} fixed IsValidUtf8Avx2() on Win64 check-in: 7db5063372 user: ab tags: trunk | |
Changes to SynTable.pas.
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// adapted from https://github.com/simdjson/simdjson - Apache License 2.0
function IsValidUtf8LenAvx2(source: PUtf8Char; sourcelen: PtrInt): boolean;
{$ifdef FPC}nostackframe; assembler; asm {$else} asm .noframe {$endif FPC}
test source, source
jz @ok
test sourcelen, sourcelen
jle @ok
{$ifdef WIN64ABI} // Win64 ABI doesn't consider rsi/rdi as volatile
push rsi
push rdi
{$endif WIN64ABI}
push rbp
mov r8, source
mov rdx, sourcelen
mov rsi, r8
mov ecx, 64
mov rax, rsi
mov rdi, rdx
................................................................................
test eax, eax
jne @last
@ended: vpor ymm5, ymm5, ymm4
@final: vptest ymm5, ymm5
sete al
vzeroupper
leave // mov rsp,rbp + pop rbp
{$ifdef WIN64ABI}
pop rdi
pop rsi
{$endif WIN64ABI}
ret
@ok: mov al, 1
ret
@small: vpxor xmm4, xmm4, xmm4
xor esi, esi
vmovdqa ymm3, ymm4
vmovdqa ymm5, ymm4
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// adapted from https://github.com/simdjson/simdjson - Apache License 2.0
function IsValidUtf8LenAvx2(source: PUtf8Char; sourcelen: PtrInt): boolean;
{$ifdef FPC}nostackframe; assembler; asm {$else} asm .noframe {$endif FPC}
test source, source
jz @ok
test sourcelen, sourcelen
jle @ok
{$ifdef win64} // this ABI doesn't consider rsi/rdi as volatile
push rsi
push rdi
{$endif}
push rbp
mov r8, source
mov rdx, sourcelen
mov rsi, r8
mov ecx, 64
mov rax, rsi
mov rdi, rdx
................................................................................
test eax, eax
jne @last
@ended: vpor ymm5, ymm5, ymm4
@final: vptest ymm5, ymm5
sete al
vzeroupper
leave // mov rsp,rbp + pop rbp
{$ifdef win64}
pop rdi
pop rsi
{$endif}
ret
@ok: mov al, 1
ret
@small: vpxor xmm4, xmm4, xmm4
xor esi, esi
vmovdqa ymm3, ymm4
vmovdqa ymm5, ymm4
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Changes to SynopseCommit.inc.
1 |
'1.18.6323'
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1 |
'1.18.6324'
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