Dan Gohman
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3526f97d13
|
Rename AliasSet to SubRegs, to reflect changes in the surrounding code.
llvm-svn: 57618
|
2008-10-16 01:06:18 +00:00 |
|
Dan Gohman
|
8075c32a55
|
Fix a subtle bug in DeadMachineInstructionElim's liveness
computation. A def of a register doesn't necessarily kill
live super-registers.
llvm-svn: 57614
|
2008-10-16 00:11:23 +00:00 |
|
Dan Gohman
|
30c5ce1b7d
|
Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.
llvm-svn: 57006
|
2008-10-03 15:45:36 +00:00 |
|
Dan Gohman
|
32c4066d62
|
Add debug output to this pass.
llvm-svn: 56602
|
2008-09-25 01:06:50 +00:00 |
|
Dan Gohman
|
a7a04d8ae6
|
Refactor the logic for testing if an instruction is dead into a
separate method.
llvm-svn: 56531
|
2008-09-24 00:27:38 +00:00 |
|
Dan Gohman
|
49becd6c31
|
Set SetStore to false, to allow this pass to delete
dead loads.
llvm-svn: 56529
|
2008-09-24 00:07:08 +00:00 |
|
Dan Gohman
|
583938816c
|
Now that DeadMachineInstructionElim is basically working
correctly, it's not necessary to explicitly remove registers
from their use-def lists.
llvm-svn: 56509
|
2008-09-23 22:04:18 +00:00 |
|
Dan Gohman
|
3242b7c44c
|
Track local physical register liveness. This is not the most
efficient implementation possible, but it's pretty simple and
good enough for the time being.
llvm-svn: 56504
|
2008-09-23 21:40:44 +00:00 |
|
Dan Gohman
|
9dc56fbe40
|
Don't consider instructions with implicit physical register
defs to be necessarily live.
llvm-svn: 56310
|
2008-09-18 18:22:32 +00:00 |
|
Dan Gohman
|
d0c6cb65e8
|
Add a new MachineInstr-level DCE pass. It is very simple, and is intended to
be used with fast-isel.
llvm-svn: 56268
|
2008-09-17 00:43:24 +00:00 |
|