1(1) For all operators: Add a test where both operands are completely
2 defined, i.e. all v-bits 0.
3
4(2) Add support for IROps with vector operands.
5
6(3) Test floating point operations with various rounding modes.
7
8(4) Iop_CmpORD32U and friends are not supported (ppc only)
9
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