[Issue 24283] [SIMD][CODEGEN] Bad codegen with and not + AVX registers

d-bugmail at puremagic.com d-bugmail at puremagic.com
Mon Dec 18 06:12:38 UTC 2023


https://issues.dlang.org/show_bug.cgi?id=24283

Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla at digitalmars.com

--- Comment #2 from Walter Bright <bugzilla at digitalmars.com> ---
The instructions it generates are:

C5 FE 6F 05 00 00 00 00     vmovdqu YMM0,FLAT:.rodata[00h][RIP]
C5 FE 6F 0D 00 00 00 00     vmovdqu YMM1,FLAT:.rodata[00h][RIP]
C5 FE 6F 15 00 00 00 00     vmovdqu YMM2,FLAT:.rodata[00h][RIP]
C5 FD EF C2                 vpxor   YMM0,YMM0,YMM2
C5 FD DB C1                 vpand   YMM0,YMM0,YMM1
C5 FE 7F 44 24 20           vmovdqu 020h[RSP],YMM0

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