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Re: [PATCH] target/i386: tcg: high bits SSE cmp operation must be ignore


From: Richard Henderson
Subject: Re: [PATCH] target/i386: tcg: high bits SSE cmp operation must be ignored
Date: Fri, 25 Mar 2022 08:48:37 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0

On 3/24/22 02:08, Paolo Bonzini wrote:
High bits in the immediate operand of SSE comparisons are ignored, they
do not result in an undefined opcode exception.  This is mentioned
explicitly in the Intel documentation.

Reported-by:sonicadvance1@gmail.com
Closes:https://gitlab.com/qemu-project/qemu/-/issues/184
Signed-off-by: Paolo Bonzini<pbonzini@redhat.com>
---
  target/i386/tcg/translate.c | 6 ++----
  1 file changed, 2 insertions(+), 4 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~



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