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target/mips: Guard check_insn_opc_user_only with INSN_R5900 check

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Avoid using check_opc_user_only() as a decision making code wrt
various architectures. Use ctx->insn_flags checks instead.

Backports commit 55fc7a69aa38f5ec726e862caf4e4394caca04a8 from qemu
This commit is contained in:
Fredrik Noring 2018-11-23 18:38:06 -05:00 committed by Lioncash
parent b671293fe0
commit a79d4b6fe7
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GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 12 additions and 4 deletions
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16
qemu/target/mips/translate.c
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@ -28507,7 +28507,9 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx, bool *insn_need_pat
break;
case OPC_LL: /* Load and stores */
check_insn(ctx, ISA_MIPS2);
check_insn_opc_user_only(ctx, INSN_R5900);
if (ctx->insn_flags & INSN_R5900) {
check_insn_opc_user_only(ctx, INSN_R5900);
}
/* Fallthrough */
case OPC_LWL:
case OPC_LWR:
@ -28532,7 +28534,9 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx, bool *insn_need_pat
case OPC_SC:
check_insn(ctx, ISA_MIPS2);
check_insn_opc_removed(ctx, ISA_MIPS32R6);
check_insn_opc_user_only(ctx, INSN_R5900);
if (ctx->insn_flags & INSN_R5900) {
check_insn_opc_user_only(ctx, INSN_R5900);
}
gen_st_cond(ctx, op, rt, rs, imm);
break;
case OPC_CACHE:
@ -28800,7 +28804,9 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx, bool *insn_need_pat
#if defined(TARGET_MIPS64)
/* MIPS64 opcodes */
case OPC_LLD:
check_insn_opc_user_only(ctx, INSN_R5900);
if (ctx->insn_flags & INSN_R5900) {
check_insn_opc_user_only(ctx, INSN_R5900);
}
/* fall through */
case OPC_LDL:
case OPC_LDR:
@ -28824,7 +28830,9 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx, bool *insn_need_pat
case OPC_SCD:
check_insn_opc_removed(ctx, ISA_MIPS32R6);
check_insn(ctx, ISA_MIPS3);
check_insn_opc_user_only(ctx, INSN_R5900);
if (ctx->insn_flags & INSN_R5900) {
check_insn_opc_user_only(ctx, INSN_R5900);
}
check_mips_64(ctx);
gen_st_cond(ctx, op, rt, rs, imm);
break;