2 files changed, 20 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp b/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp
index e442a81837e..4abc4b27bae 100644
--- a/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp
@@ -153,3 +153,20 @@ bool MipsLegalizerInfo::legalizeCustom(MachineInstr &MI,
 
   return false;
 }
+
+bool MipsLegalizerInfo::legalizeIntrinsic(MachineInstr &MI, MachineRegisterInfo &MRI,
+                                          MachineIRBuilder &MIRBuilder) const {
+  switch (MI.getIntrinsicID()) {
+  case Intrinsic::memcpy:
+  case Intrinsic::memset:
+  case Intrinsic::memmove:
+    if (createMemLibcall(MIRBuilder, MRI, MI) ==
+        LegalizerHelper::UnableToLegalize)
+      return false;
+    MI.eraseFromParent();
+    return true;
+  default:
+    break;
+  }
+  return true;
+}
diff --git a/llvm/lib/Target/Mips/MipsLegalizerInfo.h b/llvm/lib/Target/Mips/MipsLegalizerInfo.h
index e5021e08189..9696c262b2d 100644
--- a/llvm/lib/Target/Mips/MipsLegalizerInfo.h
+++ b/llvm/lib/Target/Mips/MipsLegalizerInfo.h
@@ -28,6 +28,9 @@ public:
   bool legalizeCustom(MachineInstr &MI, MachineRegisterInfo &MRI,
                       MachineIRBuilder &MIRBuilder,
                       GISelChangeObserver &Observer) const override;
+
+  bool legalizeIntrinsic(MachineInstr &MI, MachineRegisterInfo &MRI,
+                         MachineIRBuilder &MIRBuilder) const override;
 };
 } // end namespace llvm
 #endif