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target/mips: Simplify PREF opcode

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check_insn() checks for any bit in the set, and INSN_R5900 is
just another bit added to the set. No need to special-case it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210801234202.3167676-2-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé
2021-08-25 13:00:37 +02:00
parent c8b69a2a92
commit 2e176eaf9c
1 changed files with 2 additions and 6 deletions
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target/mips/tcg/translate.c
+2 -6
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@@ -15739,12 +15739,8 @@ static bool decode_opc_legacy(CPUMIPSState *env, DisasContext *ctx)
/* Treat as NOP. */
break;
case OPC_PREF:
if (ctx->insn_flags & INSN_R5900) {
/* Treat as NOP. */
} else {
check_insn(ctx, ISA_MIPS4 | ISA_MIPS_R1);
/* Treat as NOP. */
}
check_insn(ctx, ISA_MIPS4 | ISA_MIPS_R1 | INSN_R5900);
/* Treat as NOP. */
break;
/* Floating point (COP1). */