{ FS_OPT_NEUTRAL_1, "algebraic simplification: a op 1 = 1 op a = a" },
{ FS_OPT_ADD_A_A, "algebraic simplification: a + a = a * 2" },
{ FS_OPT_ADD_A_MINUS_B, "algebraic simplification: a + -b = a - b" },
- { FS_OPT_ADD_SUB, "algebraic simplification: (a + x) - x = (a - x) + x" },
- { FS_OPT_SUB_0_A, "algebraic simplification: 0 - a = -a" },
+ { FS_OPT_ADD_SUB, "algebraic simplification: (a + x) - x = (a - x) + x = a" },
+ { FS_OPT_ADD_MUL_A_X_A, "algebraic simplification: a * x + a = a * (x + 1)" },
+ { FS_OPT_SUB_0_A, "algebraic simplification: 0 - a = -a" },
+ { FS_OPT_SUB_MUL_A_X_A, "algebraic simplification: a * x - a = a * (x - 1)" },
{ FS_OPT_MUL_MINUS_1, "algebraic simplification: a * -1 = -a" },
{ FS_OPT_OR, "algebraic simplification: a | a = a | 0 = 0 | a = a" },
{ FS_OPT_AND, "algebraic simplification: a & 0b1...1 = 0b1...1 & a = a & a = a" },