target/arm: Convert VSUB to decodetree
Convert the VSUB instruction to decodetree. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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@ -1461,3 +1461,13 @@ static bool trans_VADD_dp(DisasContext *s, arg_VADD_sp *a)
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{
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return do_vfp_3op_dp(s, gen_helper_vfp_addd, a->vd, a->vn, a->vm, false);
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}
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static bool trans_VSUB_sp(DisasContext *s, arg_VSUB_sp *a)
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{
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return do_vfp_3op_sp(s, gen_helper_vfp_subs, a->vd, a->vn, a->vm, false);
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}
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static bool trans_VSUB_dp(DisasContext *s, arg_VSUB_sp *a)
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{
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return do_vfp_3op_dp(s, gen_helper_vfp_subd, a->vd, a->vn, a->vm, false);
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}
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@ -1386,7 +1386,6 @@ static inline void gen_vfp_##name(int dp) \
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tcg_temp_free_ptr(fpst); \
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}
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VFP_OP2(sub)
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VFP_OP2(div)
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#undef VFP_OP2
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@ -3110,7 +3109,7 @@ static int disas_vfp_insn(DisasContext *s, uint32_t insn)
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rn = VFP_SREG_N(insn);
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switch (op) {
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case 0 ... 6:
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case 0 ... 7:
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/* Already handled by decodetree */
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return 1;
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default:
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@ -3296,9 +3295,6 @@ static int disas_vfp_insn(DisasContext *s, uint32_t insn)
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for (;;) {
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/* Perform the calculation. */
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switch (op) {
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case 7: /* sub: fn - fm */
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gen_vfp_sub(dp);
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break;
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case 8: /* div: fn / fm */
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gen_vfp_div(dp);
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break;
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@ -132,3 +132,8 @@ VADD_sp ---- 1110 0.11 .... .... 1010 .0.0 .... \
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vm=%vm_sp vn=%vn_sp vd=%vd_sp
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VADD_dp ---- 1110 0.11 .... .... 1011 .0.0 .... \
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vm=%vm_dp vn=%vn_dp vd=%vd_dp
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VSUB_sp ---- 1110 0.11 .... .... 1010 .1.0 .... \
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vm=%vm_sp vn=%vn_sp vd=%vd_sp
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VSUB_dp ---- 1110 0.11 .... .... 1011 .1.0 .... \
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vm=%vm_dp vn=%vn_dp vd=%vd_dp
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