[CodeGen] Default CTTZ_ZERO_UNDEF/CTLZ_ZERO_UNDEF to Expand in TargetLoweringBase. This is what the majority of the targets want and removes a bunch of code. Set it to Legal explicitly in the few cases where that's the desired behavior.

llvm-svn: 267853

1 files changed, 0 insertions, 2 deletions

diff --git a/llvm/lib/Target/Lanai/LanaiISelLowering.cpp b/llvm/lib/Target/Lanai/LanaiISelLowering.cpp
index f1d834fcffc..df3a2514e67 100644
--- a/llvm/lib/Target/Lanai/LanaiISelLowering.cpp
+++ b/llvm/lib/Target/Lanai/LanaiISelLowering.cpp
@@ -111,9 +111,7 @@ LanaiTargetLowering::LanaiTargetLowering(const TargetMachine &TM,
   setOperationAction(ISD::BSWAP, MVT::i32, Expand);
   setOperationAction(ISD::CTPOP, MVT::i32, Legal);
   setOperationAction(ISD::CTLZ, MVT::i32, Legal);
-  setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i32, Expand);
   setOperationAction(ISD::CTTZ, MVT::i32, Legal);
-  setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i32, Expand);
 
   setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
   setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8, Expand);