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

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These instructions use zero as the discriminator, not SP.

Backports commit d250bb19ced3b702c7c37731855f6876d0cc7995 from qemu
This commit is contained in:
Peter Collingbourne 2021-02-25 23:47:11 -05:00 committed by Lioncash
parent 3004cc1f97
commit 7de60dfa51
1 changed files with 4 additions and 2 deletions
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6
qemu/target/arm/translate-a64.c
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@ -3624,9 +3624,11 @@ static void disas_ldst_pac(DisasContext *s, uint32_t insn,
if (s->pauth_active) { if (s->pauth_active) {
if (use_key_a) { if (use_key_a) {
gen_helper_autda(tcg_ctx, dirty_addr, tcg_ctx->cpu_env, dirty_addr, tcg_ctx->cpu_X[31]); gen_helper_autda(tcg_ctx, dirty_addr, tcg_ctx->cpu_env, dirty_addr,
new_tmp_a64_zero(s));
} else { } else {
gen_helper_autdb(tcg_ctx, dirty_addr, tcg_ctx->cpu_env, dirty_addr, tcg_ctx->cpu_X[31]); gen_helper_autdb(tcg_ctx, dirty_addr, tcg_ctx->cpu_env, dirty_addr,
new_tmp_a64_zero(s));
} }
} }