diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2011-12-06 22:12:01 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-12-06 22:12:01 +0000 |
| commit | 7c2a4a30e0e16762c75adacebd05ec9fcbccf16b (patch) | |
| tree | ccd531b26932f56aae8b213493bc6fbbf365cd12 /lib/CodeGen/MachineLICM.cpp | |
| parent | 3d5d8f6b768619ed65f79606d5c981c1e056c7e8 (diff) | |
First chunk of MachineInstr bundle support.
1. Added opcode BUNDLE
2. Taught MachineInstr class to deal with bundled MIs
3. Changed MachineBasicBlock iterator to skip over bundled MIs; added an iterator to walk all the MIs
4. Taught MachineBasicBlock methods about bundled MIs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145975 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineLICM.cpp')
| -rw-r--r-- | lib/CodeGen/MachineLICM.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp index e5e8c5117b..f88b730c6d 100644 --- a/lib/CodeGen/MachineLICM.cpp +++ b/lib/CodeGen/MachineLICM.cpp @@ -1141,8 +1141,9 @@ MachineInstr *MachineLICM::ExtractHoistableLoad(MachineInstr *MI) { assert(NewMIs.size() == 2 && "Unfolded a load into multiple instructions!"); MachineBasicBlock *MBB = MI->getParent(); - MBB->insert(MI, NewMIs[0]); - MBB->insert(MI, NewMIs[1]); + MachineBasicBlock::iterator Pos = MI; + MBB->insert(Pos, NewMIs[0]); + MBB->insert(Pos, NewMIs[1]); // If unfolding produced a load that wasn't loop-invariant or profitable to // hoist, discard the new instructions and bail. if (!IsLoopInvariantInst(*NewMIs[0]) || !IsProfitableToHoist(*NewMIs[0])) { |