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target/i386: do not use MOVL to move data between SSE registers 

Write down explicitly the load/store sequence.

Extracted from a patch by Paul Brook <paul@nowt.org>.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2022-08-26 23:15:33 +02:00
parent 91117bc546
commit 3dd116e32e
1 changed files with 4 additions and 2 deletions
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6
target/i386/tcg/translate.c
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@ -3295,8 +3295,10 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b,
offsetof(CPUX86State, xmm_regs[reg].ZMM_L(3)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movl(s, offsetof(CPUX86State, xmm_regs[reg].ZMM_L(0)),
offsetof(CPUX86State,xmm_regs[rm].ZMM_L(0)));
tcg_gen_ld_i32(s->tmp2_i32, cpu_env,
offsetof(CPUX86State, xmm_regs[rm].ZMM_L(0)));
tcg_gen_st_i32(s->tmp2_i32, cpu_env,
offsetof(CPUX86State, xmm_regs[reg].ZMM_L(0)));
}
break;
case 0x310: /* movsd xmm, ea */