[llvm-commits] [llvm] r71976 - in /llvm/trunk: lib/Target/MSP430/MSP430ISelLowering.cpp test/CodeGen/MSP430/2009-05-17-Rot.ll

[Anton Korobeynikov]

Author: asl
Date: Sun May 17 05:16:28 2009
New Revision: 71976

URL: http://llvm.org/viewvc/llvm-project?rev=71976&view=rev
Log:
Mark rotl/rotr as expand. This generates pretty ugly code, but this is better than nothing.

Added:
    llvm/trunk/test/CodeGen/MSP430/2009-05-17-Rot.ll
Modified:
    llvm/trunk/lib/Target/MSP430/MSP430ISelLowering.cpp

Modified: llvm/trunk/lib/Target/MSP430/MSP430ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/MSP430/MSP430ISelLowering.cpp?rev=71976&r1=71975&r2=71976&view=diff

==============================================================================
--- llvm/trunk/lib/Target/MSP430/MSP430ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/MSP430/MSP430ISelLowering.cpp Sun May 17 05:16:28 2009
@@ -73,6 +73,10 @@
   setOperationAction(ISD::SRA,              MVT::i16,   Custom);
   setOperationAction(ISD::SHL,              MVT::i16,   Custom);
   setOperationAction(ISD::SRL,              MVT::i16,   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::RET,              MVT::Other, Custom);
   setOperationAction(ISD::GlobalAddress,    MVT::i16,   Custom);
   setOperationAction(ISD::ExternalSymbol,   MVT::i16,   Custom);

Added: llvm/trunk/test/CodeGen/MSP430/2009-05-17-Rot.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/MSP430/2009-05-17-Rot.ll?rev=71976&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/MSP430/2009-05-17-Rot.ll (added)
+++ llvm/trunk/test/CodeGen/MSP430/2009-05-17-Rot.ll Sun May 17 05:16:28 2009
@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | llc -march=msp430
+
+define i16 @rol1u16(i16 %x.arg) nounwind {
+        %retval = alloca i16
+        %x = alloca i16
+        store i16 %x.arg, i16* %x
+        %1 = load i16* %x
+        %2 = shl i16 %1, 1
+        %3 = load i16* %x
+        %4 = lshr i16 %3, 15
+        %5 = or i16 %2, %4
+        store i16 %5, i16* %retval
+        br label %return
+return:
+        %6 = load i16* %retval
+        ret i16 %6
+}
\ No newline at end of file