1 files changed, 14 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index 1370fab..a1e0258 100644
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -130,6 +130,20 @@ unsigned ARMInstrInfo::isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) con
   return 0;
 }
 
+bool ARMInstrInfo::isTriviallyReMaterializable(MachineInstr *MI) const {
+  switch (MI->getOpcode()) {
+  default: break;
+  case ARM::LDRcp:
+  case ARM::MOVi:
+  case ARM::MVNi:
+  case ARM::MOVi2pieces:
+  case ARM::tLDRcp:
+    // These instructions are always trivially rematerializable.
+    return true;
+  }
+  return false;
+}
+
 static unsigned getUnindexedOpcode(unsigned Opc) {
   switch (Opc) {
   default: break;