search for: eapermuterhs

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2007 Sep 13
1
[LLVMdev] Nested multiclass/defm declarations?
...o Stored in the instruction, e.g. "#400". Quite a few instructions support arbitrary choices of EA (effective addressing) modes for both operands, giving an explosion of permutations (11 * 11 !!). I thought about using a nested multiclass declaration to resolve this, as in multiclass EAPermuteRhs<dag lhs_oper, string asmstr> { def _dx : I<(outs DataRegister:$dst), lhs_oper, ..... > ; def _ax : I<(outs AddressRegister:$dst), lhs_oper, ..... > ; def _ax_postincrement : I<(outs AddressRegister:$dst), lhs_oper, ..... > ; // And many more } multiclass EAPermute&l...