Valgrind has a quite complete support for SSE 4.1 now. Also, I cannot
reproduce the problem with the following test case:
% cat insertps.c
int main(void) {
asm(".byte 0x66, 0xF, 0x3A, 0x21");
return 0;
}
Which is disassembled by gdb as:
0x00000000004004a0 <+0>: mov eax,0x0
0x00000000004004a5 <+5>: mov DWORD PTR [rsp-0x4],0x0
0x00000000004004ad <+13>: insertps xmm0,xmm3,0x90
** Changed in: valgrind (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/514771
Title:
valgrind does not recognize opcode 0x660F3A21 (INSERTPS of SSE 4.1)
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