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.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index 8784dc965c..fbe99188cc 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -677,10 +677,12 @@ void PreAllocSplitting::ReconstructLiveInterval(LiveInterval* LI) {
// If the def is a move, set the copy field.
unsigned SrcReg, DstReg, SrcSubIdx, DstSubIdx;
- if (TII->isMoveInstr(*DI, SrcReg, DstReg, SrcSubIdx, DstSubIdx))
+ if (TII->isMoveInstr(*DI, SrcReg, DstReg, SrcSubIdx, DstSubIdx)) {
if (DstReg == LI->reg)
NewVN->setCopy(&*DI);
-
+ } else if (DI->isCopyLike() && DI->getOperand(0).getReg() == LI->reg)
+ NewVN->setCopy(&*DI);
+
NewVNs[&*DI] = NewVN;
}