{ FS_OPT_AND, "algebraic simplification: a & 0b1...1 = 0b1...1 & a = a & a = (a|X) & a = a" },
{ FS_OPT_TO_EOR, "algebraic simplification: (a|b) & ~(a&b) = a^b" },
{ FS_OPT_EOR_A_A, "algebraic simplification: a ^ a = 0" },
+ { FS_OPT_EOR_A_B_A, "algebraic simplification: (a ^ b) ^ a = b" },
{ FS_OPT_EOR_TO_NOT_BOOL,"boolean simplification: bool ^ 1 = !bool" },
{ FS_OPT_EOR_TO_NOT, "algebraic simplification: x ^ 0b1..1 = ~x, (a ^ b) & b = ~a & b" },
{ FS_OPT_NOT_CMP, "algebraic simplification: !(a cmp b) = a !cmp b" },
- { FS_OPT_OR_SHFT_TO_ROT, "algebraic simplification: (x << c) | (x >> (bits - c)) == Rot(x, c)" },
+ { FS_OPT_OR_SHFT_TO_ROTL,"algebraic simplification: (x << c) | (x >> (bits - c)) == Rotl(x, c)" },
{ FS_OPT_REASSOC_SHIFT, "algebraic simplification: (x SHF c1) SHF c2 = x SHF (c1+c2)" },
{ FS_OPT_SHIFT_AND, "algebraic simplification: (a SHF c) AND (b SHF c) = (a AND b) SHF c" },
{ FS_OPT_SHIFT_OR, "algebraic simplification: (a SHF c) OR (b SHF c) = (a OR b) SHF c" },