diff options
Diffstat (limited to 'lib/CodeGen/SplitKit.cpp')
| -rw-r--r-- | lib/CodeGen/SplitKit.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp index 5b5b602..f8be7d4 100644 --- a/lib/CodeGen/SplitKit.cpp +++ b/lib/CodeGen/SplitKit.cpp @@ -822,6 +822,7 @@ void SplitEditor::rewrite(unsigned reg) { for (MachineRegisterInfo::reg_iterator RI = mri_.reg_begin(reg), RE = mri_.reg_end(); RI != RE;) { MachineOperand &MO = RI.getOperand(); + unsigned OpNum = RI.getOperandNo(); MachineInstr *MI = MO.getParent(); ++RI; if (MI->isDebugValue()) { @@ -844,6 +845,8 @@ void SplitEditor::rewrite(unsigned reg) { DEBUG(dbgs() << " rewr BB#" << MI->getParent()->getNumber() << '\t'<< Idx); assert(LI && "No register was live at use"); MO.setReg(LI->reg); + if (MO.isUse() && !MI->isRegTiedToDefOperand(OpNum)) + MO.setIsKill(LI->killedAt(Idx.getDefIndex())); DEBUG(dbgs() << '\t' << *MI); } } |