| Date: Sun, 8 Jul 2001 10:02:20 -0500 |
| From: Vikram S. Adve <vadve@cs.uiuc.edu> |
| To: vadve@cs.uiuc.edu, Ruchira Sasanka <sasanka@students.uiuc.edu> |
| Cc: Chris Lattner <lattner@cs.uiuc.edu> |
| Subject: RE: machine instruction operands |
| |
| I got interrupted and forgot to explain the example. In that case: |
| |
| reg will be the 3rd operand of MUL and it will be of type |
| MO_MInstrVirtualReg. The field MachineInstr* minstr will point to the |
| instruction that computes reg. |
| |
| numElements will be an immediate constant, not a register. |
| |
| %sp will be operand 1 of ADD and it will be of type MO_MachineReg. The |
| field regNum identifies the register. |
| |
| numElements will be operand 2 of ADD and it will be of type |
| MO_VMVirtualReg. The field Value* value identifies the value. |
| |
| ptr will be operand 3 of ADD will also be %sp, i.e., of |
| type MO_MachineReg. regNum identifies the register. |
| |
| --Vikram |
| |