target/xtensa: extract test for alloca exception
- mark movsp instruction; - put test for alloca exception right after the test for window underflow; Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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@ -1078,6 +1078,13 @@ static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc)
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tcg_temp_free(tmp);
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}
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if (op_flags & XTENSA_OP_ALLOCA) {
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TCGv_i32 tmp = tcg_const_i32(dc->pc);
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gen_helper_movsp(cpu_env, tmp);
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tcg_temp_free(tmp);
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}
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for (slot = 0; slot < slots; ++slot) {
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XtensaOpcodeOps *ops = slot_prop[slot].ops;
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@ -1918,10 +1925,7 @@ static void translate_movp(DisasContext *dc, const uint32_t arg[],
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static void translate_movsp(DisasContext *dc, const uint32_t arg[],
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const uint32_t par[])
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{
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TCGv_i32 pc = tcg_const_i32(dc->pc);
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gen_helper_movsp(cpu_env, pc);
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tcg_gen_mov_i32(cpu_R[arg[0]], cpu_R[arg[1]]);
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tcg_temp_free(pc);
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}
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static void translate_mul16(DisasContext *dc, const uint32_t arg[],
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@ -3062,6 +3066,7 @@ static const XtensaOpcodeOps core_ops[] = {
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.name = "movsp",
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.translate = translate_movsp,
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.windowed_register_op = 0x3,
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.op_flags = XTENSA_OP_ALLOCA,
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}, {
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.name = "movt",
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.translate = translate_movp,
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