i128 shift libcalls are not available on x86.

llvm-svn: 68133

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index f0a9484b4b6..5fd981f07dc 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -816,6 +816,13 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
   setOperationAction(ISD::UMULO, MVT::i32, Custom);
   setOperationAction(ISD::UMULO, MVT::i64, Custom);
 
+  if (!Subtarget->is64Bit()) {
+    // These libcalls are not available in 32-bit.
+    setLibcallName(RTLIB::SHL_I128, 0);
+    setLibcallName(RTLIB::SRL_I128, 0);
+    setLibcallName(RTLIB::SRA_I128, 0);
+  }
+
   // We have target-specific dag combine patterns for the following nodes:
   setTargetDAGCombine(ISD::VECTOR_SHUFFLE);
   setTargetDAGCombine(ISD::BUILD_VECTOR);