1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 603446755aaf..9ace36f344a5 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -285,10 +285,13 @@ SystemZTargetLowering::SystemZTargetLowering(const TargetMachine &TM,
   // Give LowerOperation the chance to replace 64-bit ORs with subregs.
   setOperationAction(ISD::OR, MVT::i64, Custom);
 
-  // FIXME: Can we support these natively?
+  // Expand 128 bit shifts without using a libcall.
   setOperationAction(ISD::SRL_PARTS, MVT::i64, Expand);
   setOperationAction(ISD::SHL_PARTS, MVT::i64, Expand);
   setOperationAction(ISD::SRA_PARTS, MVT::i64, Expand);
+  setLibcallName(RTLIB::SRL_I128, nullptr);
+  setLibcallName(RTLIB::SHL_I128, nullptr);
+  setLibcallName(RTLIB::SRA_I128, nullptr);
 
   // We have native instructions for i8, i16 and i32 extensions, but not i1.
   setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);