diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-16 22:56:08 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-16 22:56:08 +0000 |
| commit | c46570dc05851395829bef904bb6ddb1260400d1 (patch) | |
| tree | 179a2496f8f6beed6e7129a59a84a99c04760a6d /lib/CodeGen/LiveRangeEdit.cpp | |
| parent | ebe8173941238cfbabadb1c63bca7fb7dcf2adbe (diff) | |
Clarify debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127771 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveRangeEdit.cpp')
| -rw-r--r-- | lib/CodeGen/LiveRangeEdit.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/CodeGen/LiveRangeEdit.cpp b/lib/CodeGen/LiveRangeEdit.cpp index c9985cd9d2..0769f95262 100644 --- a/lib/CodeGen/LiveRangeEdit.cpp +++ b/lib/CodeGen/LiveRangeEdit.cpp @@ -148,17 +148,21 @@ void LiveRangeEdit::eliminateDeadDefs(SmallVectorImpl<MachineInstr*> &Dead, while (!Dead.empty()) { MachineInstr *MI = Dead.pop_back_val(); assert(MI->allDefsAreDead() && "Def isn't really dead"); + SlotIndex Idx = LIS.getInstructionIndex(MI).getDefIndex(); // Never delete inline asm. - if (MI->isInlineAsm()) + if (MI->isInlineAsm()) { + DEBUG(dbgs() << "Won't delete: " << Idx << '\t' << *MI); continue; + } // Use the same criteria as DeadMachineInstructionElim. bool SawStore = false; - if (!MI->isSafeToMove(&TII, 0, SawStore)) + if (!MI->isSafeToMove(&TII, 0, SawStore)) { + DEBUG(dbgs() << "Can't delete: " << Idx << '\t' << *MI); continue; + } - SlotIndex Idx = LIS.getInstructionIndex(MI).getDefIndex(); DEBUG(dbgs() << "Deleting dead def " << Idx << '\t' << *MI); // Check for live intervals that may shrink |