https://bugs.kde.org/show_bug.cgi?id=467108
Bug ID: 467108
Summary: pextrb instruction is not recognized
Classification: Developer tools
Product: valgrind
Version: 3.19.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: olek...@gmail.com
Target Milestone: ---
See similar bug #366237
Just replace pextrw with pextrb in #366237 attachment.
$ cat test_pextrw.nas-nasm.lst
1 [bits 64]
2 [default rel]
3
4 [section .text align=16]
5
6 [global test_pextrw]
7 test_pextrw:
8 00000000 0F1007 movups xmm0, [rdi]
9 00000003 660F3A14C003 pextrb rax, xmm0, 3
10 00000009 C3 ret
11
$ cat test_pextrw.nas-yasm.lst
1 %line 1+1 test_pextrw.nas
2 [bits 64]
3 [default rel]
4
5 [section .text align=16]
6
7 [global test_pextrw]
8 test_pextrw:
9 00000000 0F1007 movups xmm0, [rdi]
10 00000003 66480F3A14C003 pextrb rax, xmm0, 3
11 0000000A C3 ret
Valgrind error:
==523428== Memcheck, a memory error detector
==523428== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==523428== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
==523428== Command: ./test_pextrw_yasm.exe
==523428== Parent PID: 521086
==523428==
vex amd64->IR: unhandled instruction bytes: 0x66 0x48 0xF 0x3A 0x14 0xC0 0x3
0xC3 0x0 0xF3
vex amd64->IR: REX=1 REX.W=1 REX.R=0 REX.X=0 REX.B=0
vex amd64->IR: VEX=0 VEX.L=0 VEX.nVVVV=0x0 ESC=0F3A
vex amd64->IR: PFX.66=1 PFX.F2=0 PFX.F3=0
==523428== valgrind: Unrecognised instruction at address 0x109213.
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