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Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2009-02-25 22:49:59 +00:00
parent 8a36f509cd
commit a87008d90b
14 changed files with 331 additions and 383 deletions
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49
include/llvm/CodeGen/SelectionDAGNodes.h
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@@ -1929,55 +1929,6 @@ public:
}
};
/// BuildVectorSDNode - A container for ISD::BUILD_VECTOR. This is used to
/// encapsulate common BUILD_VECTOR code and operations such as constant splat
/// testing.
class BuildVectorSDNode : public SDNode {
//! Splat has undefined bits in it
bool hasUndefSplatBitsFlag;
//! The splat value
uint64_t SplatBits;
//! The undefined part of the splat
uint64_t SplatUndef;
//! The splat's size (1, 2, 4 or 8 bytes)
unsigned SplatSize;
protected:
friend class SelectionDAG;
//! Arbitrary element ISD::BUILD_VECTOR constructor
explicit BuildVectorSDNode(MVT vecVT, DebugLoc dl, const SDValue *Elts,
unsigned NumElts);
public:
//! Constant splat predicate.
/*!
Determine if this ISD::BUILD_VECTOR is a constant splat. This method
returns information about the splat in \a hasUndefSplatBitsFlag,
\a SplatBits, \a SplatUndef and \a SplatSize if the return value is
true.
\param[out] hasUndefSplatBitsFlag: true if the constant splat contains
any undefined bits in the splat.
\param[out] SplatBits: The constant splat value
\param[out] SplatUndef: The undefined bits in the splat value
\param[out] SplatSize: The size of the constant splat in bytes
\param MinSplatBits: minimum number of bits in the constant splat, defaults
to 0 for 'don't care', but normally one of [8, 16, 32, 64].
\return true if the splat has the required minimum number of bits and the
splat really is a constant splat (accounting for undef bits).
*/
bool isConstantSplat(bool &hasUndefSplatBitsFlag, uint64_t &SplatBits,
uint64_t &SplatUndef, unsigned &SplatSize,
int MinSplatBits = 0);
static bool classof(const BuildVectorSDNode *) { return true; }
static bool classof(const SDNode *N) {
return N->getOpcode() == ISD::BUILD_VECTOR;
}
};
/// SrcValueSDNode - An SDNode that holds an arbitrary LLVM IR Value. This is
/// used when the SelectionDAG needs to make a simple reference to something
/// in the LLVM IR representation.