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tcg: Emit barriers with parallel_cpus
Backports commit 91682118aa330aff7e8ef0cc685c32d101f49940 from qemu
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@ -149,17 +149,7 @@ void tcg_gen_op6(TCGContext *ctx, TCGOpcode opc, TCGArg a1, TCGArg a2,
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void tcg_gen_mb(TCGContext *ctx, TCGBar mb_type)
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{
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bool emit_barriers = true;
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#ifndef CONFIG_USER_ONLY
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/* TODO: When MTTCG is available for system mode, we will check
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* the following condition and enable emit_barriers
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* (qemu_tcg_mttcg_enabled() && smp_cpus > 1)
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*/
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emit_barriers = false;
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#endif
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if (emit_barriers) {
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if (ctx->uc->parallel_cpus) {
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tcg_gen_op1(ctx, INDEX_op_mb, mb_type);
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}
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}
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