Add bswap, rotl, and rotr nodes
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl
Targets should add rotl/rotr patterns if they have them
llvm-svn: 25222
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index fee12ef..65622af 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -107,6 +107,13 @@
setOperationAction(ISD::CTLZ , MVT::i32 , Expand);
setOperationAction(ISD::READCYCLECOUNTER , MVT::i64 , Custom);
+ setOperationAction(ISD::ROTL , MVT::i8 , Expand);
+ setOperationAction(ISD::ROTR , MVT::i8 , Expand);
+ setOperationAction(ISD::ROTL , MVT::i16 , Expand);
+ setOperationAction(ISD::ROTR , MVT::i16 , Expand);
+ setOperationAction(ISD::ROTL , MVT::i32 , Expand);
+ setOperationAction(ISD::ROTR , MVT::i32 , Expand);
+
setOperationAction(ISD::READIO , MVT::i1 , Expand);
setOperationAction(ISD::READIO , MVT::i8 , Expand);
setOperationAction(ISD::READIO , MVT::i16 , Expand);