From e4fdb8b8ffddc1be3f6f796964bed03a77770829 Mon Sep 17 00:00:00 2001 From: Anton Korobeynikov Date: Sun, 17 May 2009 10:16:28 +0000 Subject: [PATCH] Mark rotl/rotr as expand. This generates pretty ugly code, but this is better than nothing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71976 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/MSP430/MSP430ISelLowering.cpp | 4 ++++ test/CodeGen/MSP430/2009-05-17-Rot.ll | 17 +++++++++++++++++ 2 files changed, 21 insertions(+) create mode 100644 test/CodeGen/MSP430/2009-05-17-Rot.ll diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp index 387cebffc0b..14db20e5fcd 100644 --- a/lib/Target/MSP430/MSP430ISelLowering.cpp +++ b/lib/Target/MSP430/MSP430ISelLowering.cpp @@ -73,6 +73,10 @@ MSP430TargetLowering::MSP430TargetLowering(MSP430TargetMachine &tm) : 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); diff --git a/test/CodeGen/MSP430/2009-05-17-Rot.ll b/test/CodeGen/MSP430/2009-05-17-Rot.ll new file mode 100644 index 00000000000..c25a906308a --- /dev/null +++ b/test/CodeGen/MSP430/2009-05-17-Rot.ll @@ -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