expand bswap intrinsic

bswap operation should be expanded. RISC-V instruction selection cannot handle this operation.
ucb-bar · Jul 28, 2016 · 7d28371 · 7d28371
1 parent 8713638
commit 7d28371
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/Target/RISCV/RISCVISelLowering.cpp b/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -179,6 +179,7 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &tm,
       setOperationAction(ISD::CTLZ,            VT, Expand);
       setOperationAction(ISD::CTTZ_ZERO_UNDEF, VT, Expand);
       setOperationAction(ISD::CTLZ_ZERO_UNDEF, VT, Expand);
+      setOperationAction(ISD::BSWAP,           VT, Expand);
 
     }
   }