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-rw-r--r--lib/CodeGen/RegAllocPBQP.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocPBQP.cpp b/lib/CodeGen/RegAllocPBQP.cpp
index 7f699f8ee9..adab2b01d8 100644
--- a/lib/CodeGen/RegAllocPBQP.cpp
+++ b/lib/CodeGen/RegAllocPBQP.cpp
@@ -83,6 +83,7 @@ namespace {
au.addPreserved<LiveStacks>();
au.addRequired<MachineLoopInfo>();
au.addPreserved<MachineLoopInfo>();
+ au.addRequired<VirtRegMap>();
MachineFunctionPass::getAnalysisUsage(au);
}