Il 14/05/2014 09:17, Richard Henderson ha scritto:
+ tcg_out_opc_imm(s, OPC_LW, TCG_REG_A0, TCG_REG_A0, add_off);
+ tcg_out_opc_reg(s, OPC_AND, TCG_REG_T0, TCG_REG_T0, addrl);
+
+ label_ptr[0] = s->code_ptr;
tcg_out_opc_br(s, OPC_BNE, TCG_REG_T0, TCG_REG_AT);
- tcg_out_nop(s);
I don't remember mips very well, LW cannot be put in the delay slot?
This would let you fill both delay slots for the 64-bit case. Or is it
just that the code becomes harder to follow due to the TARGET_LONG_BITS
== 64 "if"s?
Alternatively, for 64-bit you could use OR+BNE instead of BNE+NOP+BNE.
Of course this can be done later, this patchset is already a big
improvement.
+ tcg_out_opc_imm(s, OPC_LW, TCG_REG_A0, TCG_REG_A0, add_off);
+ tcg_out_opc_reg(s, OPC_AND, TCG_REG_T0, TCG_REG_T0, addrl);
+
+ label_ptr[0] = s->code_ptr;
tcg_out_opc_br(s, OPC_BNE, TCG_REG_T0, TCG_REG_AT);
- tcg_out_nop(s);
Same here.
Paolo
