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target/i386: fix avx2 instructions vzeroall and vpermdq 

vzeroall: xmm_regs should be used instead of xmm_t0
vpermdq: bit 3 and 7 of imm should be considered

Signed-off-by: Xinyu Li <lixinyu20s@ict.ac.cn>
Message-Id: <20230510145222.586487-1-lixinyu20s@ict.ac.cn>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 056d649007)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Xinyu Li 2023-05-10 22:52:22 +08:00 committed by Michael Tokarev
parent eee0666a50
commit 48b60eb6c9
2 changed files with 9 additions and 1 deletions
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8
target/i386/ops_sse.h
View File

@ -2493,6 +2493,14 @@ void helper_vpermdq_ymm(Reg *d, Reg *v, Reg *s, uint32_t order)
d->Q(1) = r1;
d->Q(2) = r2;
d->Q(3) = r3;
if (order & 0x8) {
d->Q(0) = 0;
d->Q(1) = 0;
}
if (order & 0x80) {
d->Q(2) = 0;
d->Q(3) = 0;
}
}
void helper_vpermq_ymm(Reg *d, Reg *s, uint32_t order)

2
target/i386/tcg/emit.c.inc
View File

@ -2288,7 +2288,7 @@ static void gen_VZEROALL(DisasContext *s, CPUX86State *env, X86DecodedInsn *deco
{
TCGv_ptr ptr = tcg_temp_new_ptr();
tcg_gen_addi_ptr(ptr, cpu_env, offsetof(CPUX86State, xmm_t0));
tcg_gen_addi_ptr(ptr, cpu_env, offsetof(CPUX86State, xmm_regs));
gen_helper_memset(ptr, ptr, tcg_constant_i32(0),
tcg_constant_ptr(CPU_NB_REGS * sizeof(ZMMReg)));
tcg_temp_free_ptr(ptr);