diff options
Diffstat (limited to 'include/llvm')
| -rw-r--r-- | include/llvm/CodeGen/ISDOpcodes.h | 6 | ||||
| -rw-r--r-- | include/llvm/Target/TargetLowering.h | 4 |
2 files changed, 7 insertions, 3 deletions
diff --git a/include/llvm/CodeGen/ISDOpcodes.h b/include/llvm/CodeGen/ISDOpcodes.h index 092fa5a..442729b 100644 --- a/include/llvm/CodeGen/ISDOpcodes.h +++ b/include/llvm/CodeGen/ISDOpcodes.h @@ -311,8 +311,10 @@ namespace ISD { /// the shift amount can be any type, but care must be taken to ensure it is /// large enough. TLI.getShiftAmountTy() is i8 on some targets, but before /// legalization, types like i1024 can occur and i8 doesn't have enough bits - /// to represent the shift amount. By convention, DAGCombine and - /// SelectionDAGBuilder forces these shift amounts to i32 for simplicity. + /// to represent the shift amount. + /// When the 1st operand is a vector, the shift amount must be in the same + /// type. (TLI.getShiftAmountTy() will return the same type when the input + /// type is a vector.) SHL, SRA, SRL, ROTL, ROTR, /// Byte Swap and Counting operators. diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h index a28d63a..e3e5737 100644 --- a/include/llvm/Target/TargetLowering.h +++ b/include/llvm/Target/TargetLowering.h @@ -145,7 +145,9 @@ public: // the pointer type from the data layout. // FIXME: The default needs to be removed once all the code is updated. virtual MVT getPointerTy(uint32_t AS = 0) const { return PointerTy; } - virtual MVT getShiftAmountTy(EVT LHSTy) const; + virtual MVT getScalarShiftAmountTy(EVT LHSTy) const; + + EVT getShiftAmountTy(EVT LHSTy) const; /// isSelectExpensive - Return true if the select operation is expensive for /// this target. |