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Fix PR10475

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- ISD::SHL/SRL/SRA must have either both scalar or both vector operands
  but TLI.getShiftAmountTy() so far only return scalar type. As a
  result, backend logic assuming that breaks.
- Rename the original TLI.getShiftAmountTy() to
  TLI.getScalarShiftAmountTy() and re-define TLI.getShiftAmountTy() to
  return target-specificed scalar type or the same vector type as the
  1st operand.
- Fix most TICG logic assuming TLI.getShiftAmountTy() a simple scalar
  type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176364 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Liao
2013-03-01 18:40:30 +00:00
parent b8f307b2d6
commit a6b20ced76
14 changed files with 69 additions and 23 deletions
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2
lib/Target/XCore/XCoreISelLowering.h
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@@ -84,7 +84,7 @@ namespace llvm {
explicit XCoreTargetLowering(XCoreTargetMachine &TM);
virtual unsigned getJumpTableEncoding() const;
virtual MVT getShiftAmountTy(EVT LHSTy) const { return MVT::i32; }
virtual MVT getScalarShiftAmountTy(EVT LHSTy) const { return MVT::i32; }
/// LowerOperation - Provide custom lowering hooks for some operations.
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;