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-rw-r--r--lib/CodeGen/SelectionDAG/InstrEmitter.cpp3
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp7
2 files changed, 8 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
index eebf2b2f69..e2e906afa6 100644
--- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
+++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
@@ -763,7 +763,8 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned,
}
// Run post-isel target hook to adjust this instruction if needed.
- TLI->AdjustInstrPostInstrSelection(MI, Node);
+ if (II.hasPostISelHook())
+ TLI->AdjustInstrPostInstrSelection(MI, Node);
}
/// EmitSpecialNode - Generate machine code for a target-independent node and
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 9f2369d142..b684619776 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -179,7 +179,12 @@ TargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
void TargetLowering::AdjustInstrPostInstrSelection(MachineInstr *MI,
SDNode *Node) const {
- // Do nothing unless the target overrides it.
+#ifndef NDEBUG
+ dbgs() << "If a target marks an instruction with "
+ "'hasPostISelHook', it must implement "
+ "TargetLowering::AdjustInstrPostInstrSelection!";
+#endif
+ llvm_unreachable(0);
}
//===----------------------------------------------------------------------===//