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target/arm: Fix decode of LDRA[AB] instructions 

These instructions use zero as the discriminator, not SP.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Message-id: 20200804002849.30268-1-pcc@google.com
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Collingbourne 2020-08-03 17:28:49 -07:00 committed by Peter Maydell
parent ffdfca6fac
commit d250bb19ce
1 changed files with 4 additions and 2 deletions
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6
target/arm/translate-a64.c
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@ -3429,9 +3429,11 @@ static void disas_ldst_pac(DisasContext *s, uint32_t insn,
if (s->pauth_active) {
if (use_key_a) {
gen_helper_autda(dirty_addr, cpu_env, dirty_addr, cpu_X[31]);
gen_helper_autda(dirty_addr, cpu_env, dirty_addr,
new_tmp_a64_zero(s));
} else {
gen_helper_autdb(dirty_addr, cpu_env, dirty_addr, cpu_X[31]);
gen_helper_autdb(dirty_addr, cpu_env, dirty_addr,
new_tmp_a64_zero(s));
}
}