diff options
| -rw-r--r-- | lib/Target/README.txt | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 48298fae87..e77573e007 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -1,6 +1,20 @@ Target Independent Opportunities: -===-------------------------------------------------------------------------=== +//===---------------------------------------------------------------------===// + +We should make the following changes to clean up MachineInstr: + +1. Add an Opcode field to TargetInstrDescriptor, so you can tell the opcode of + an instruction with just a TargetInstrDescriptor*. +2. Remove the Opcode field from MachineInstr, replacing it with a + TargetInstrDescriptor*. +3. Getting information about a machine instr then becomes: + MI->getInfo()->isTwoAddress() + instead of: + const TargetInstrInfo &TII = ... + TII.isTwoAddrInstr(MI->getOpcode()) + +//===---------------------------------------------------------------------===// FreeBench/mason contains code like this: |