aboutsummaryrefslogtreecommitdiff
path: root/lib/CodeGen/PreAllocSplitting.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/CodeGen/PreAllocSplitting.cpp')
-rw-r--r--lib/CodeGen/PreAllocSplitting.cpp5
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index ee228a9f61..68d28e4f97 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -807,8 +807,7 @@ bool PreAllocSplitting::Rematerialize(unsigned VReg, VNInfo* ValNo,
MachineBasicBlock& MBB = *RestorePt->getParent();
MachineBasicBlock::iterator KillPt = BarrierMBB->end();
- if (LIs->getInstructionFromIndex(ValNo->def) == 0 ||
- DefMI->getParent() == BarrierMBB)
+ if (!DefMI || DefMI->getParent() == BarrierMBB)
KillPt = findSpillPoint(BarrierMBB, Barrier, NULL, RefsInMBB);
else
KillPt = llvm::next(MachineBasicBlock::iterator(DefMI));
@@ -1005,7 +1004,7 @@ bool PreAllocSplitting::SplitRegLiveInterval(LiveInterval *LI) {
SlotIndex SpillIndex;
MachineInstr *SpillMI = NULL;
int SS = -1;
- if (LIs->getInstructionFromIndex(ValNo->def) == 0) {
+ if (!DefMI) {
// If we don't know where the def is we must split just before the barrier.
if ((SpillMI = FoldSpill(LI->reg, RC, 0, Barrier,
BarrierMBB, SS, RefsInMBB))) {