[llvm-commits] [llvm] r71976 - in /llvm/trunk: lib/Target/MSP430/MSP430ISelLowering.cpp test/CodeGen/MSP430/2009-05-17-Rot.ll
Anton Korobeynikov
asl at math.spbu.ru
Sun May 17 03:16:28 PDT 2009
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
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