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Split the logic behind CastInst::isNoopCast into a separate static function,

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as is done with most other cast opcode predicates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105008 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-05-28 21:41:37 +00:00
parent c6e02e4056
commit 2c048ea538
2 changed files with 21 additions and 5 deletions
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8
include/llvm/InstrTypes.h
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@ -625,6 +625,14 @@ public:
/// platform. Generally, the result of TargetData::getIntPtrType() should be
/// passed in. If that's not available, use Type::Int64Ty, which will make
/// the isNoopCast call conservative.
/// @brief Determine if the described cast is a no-op cast.
static bool isNoopCast(
Instruction::CastOps Opcode, ///< Opcode of cast
const Type *SrcTy, ///< SrcTy of cast
const Type *DstTy, ///< DstTy of cast
const Type *IntPtrTy ///< Integer type corresponding to Ptr types, or null
);
/// @brief Determine if this cast is a no-op cast.
bool isNoopCast(
const Type *IntPtrTy ///< Integer type corresponding to pointer