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First chunk of MachineInstr bundle support.

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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
This commit is contained in:
Evan Cheng
2011-12-06 22:12:01 +00:00
parent 3d5d8f6b76
commit 7c2a4a30e0
19 changed files with 369 additions and 69 deletions
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2
lib/CodeGen/ScheduleDAGInstrs.cpp
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@ -689,7 +689,7 @@ MachineBasicBlock *ScheduleDAGInstrs::EmitSchedule() {
DI = DbgValues.end(), DE = DbgValues.begin(); DI != DE; --DI) {
std::pair<MachineInstr *, MachineInstr *> P = *prior(DI);
MachineInstr *DbgValue = P.first;
MachineInstr *OrigPrivMI = P.second;
MachineBasicBlock::iterator OrigPrivMI = P.second;
BB->insertAfter(OrigPrivMI, DbgValue);
}
DbgValues.clear();