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Tighten up the abstraction slightly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52045 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2008-06-06 12:49:32 +00:00
parent 83ec4b6711
commit 3b3adbb745
2 changed files with 19 additions and 12 deletions
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11
include/llvm/CodeGen/ValueTypes.h
View File

@ -25,6 +25,7 @@ namespace llvm {
class Type;
struct MVT { // MVT = Machine Value Type
public:
enum SimpleValueType {
// If you change this numbering, you must change the values in
@ -107,6 +108,8 @@ namespace llvm {
/// | | Vector element |
///
private:
static const int SimpleTypeBits = 8;
static const int PrecisionBits = 8;
static const int VectorBits = 32 - SimpleTypeBits - PrecisionBits;
@ -125,6 +128,8 @@ namespace llvm {
uint32_t V;
public:
MVT() {}
MVT(SimpleValueType S) { V = S; }
inline bool operator== (const MVT VT) const { return V == VT.V; }
@ -194,9 +199,8 @@ namespace llvm {
if (NumElements == 2) return v2f64;
break;
}
// Set the length with the top bit forced to zero (needed by the verifier).
MVT Result;
Result.V = VT.V | (((NumElements + 1) << (33 - VectorBits)) >> 1);
Result.V = VT.V | ((NumElements + 1) << (32 - VectorBits));
assert(Result.getVectorElementType() == VT &&
"Bad vector element type!");
assert(Result.getVectorNumElements() == NumElements &&
@ -406,6 +410,9 @@ namespace llvm {
/// This returns all pointers as iPTR. If HandleUnknown is true, unknown
/// types are returned as Other, otherwise they are invalid.
static MVT getMVT(const Type *Ty, bool HandleUnknown = false);
/// getRawBits - Represent the type as a bunch of bits.
uint32_t getRawBits() const { return V; }
};
} // End llvm namespace

20
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -416,7 +416,7 @@ static void AddNodeIDNode(FoldingSetNodeID &ID, SDNode *N) {
LoadSDNode *LD = cast<LoadSDNode>(N);
ID.AddInteger(LD->getAddressingMode());
ID.AddInteger(LD->getExtensionType());
ID.AddInteger(LD->getMemoryVT().V);
ID.AddInteger(LD->getMemoryVT().getRawBits());
ID.AddInteger(LD->getAlignment());
ID.AddInteger(LD->isVolatile());
break;
@ -425,7 +425,7 @@ static void AddNodeIDNode(FoldingSetNodeID &ID, SDNode *N) {
StoreSDNode *ST = cast<StoreSDNode>(N);
ID.AddInteger(ST->getAddressingMode());
ID.AddInteger(ST->isTruncatingStore());
ID.AddInteger(ST->getMemoryVT().V);
ID.AddInteger(ST->getMemoryVT().getRawBits());
ID.AddInteger(ST->getAlignment());
ID.AddInteger(ST->isVolatile());
break;
@ -684,13 +684,13 @@ SDNode *SelectionDAG::FindModifiedNodeSlot(SDNode *N,
if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(N)) {
ID.AddInteger(LD->getAddressingMode());
ID.AddInteger(LD->getExtensionType());
ID.AddInteger(LD->getMemoryVT().V);
ID.AddInteger(LD->getMemoryVT().getRawBits());
ID.AddInteger(LD->getAlignment());
ID.AddInteger(LD->isVolatile());
} else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ID.AddInteger(ST->getAddressingMode());
ID.AddInteger(ST->isTruncatingStore());
ID.AddInteger(ST->getMemoryVT().V);
ID.AddInteger(ST->getMemoryVT().getRawBits());
ID.AddInteger(ST->getAlignment());
ID.AddInteger(ST->isVolatile());
}
@ -2984,7 +2984,7 @@ SDOperand SelectionDAG::getAtomic(unsigned Opcode, SDOperand Chain,
FoldingSetNodeID ID;
SDOperand Ops[] = {Chain, Ptr, Cmp, Swp};
AddNodeIDNode(ID, Opcode, VTs, Ops, 4);
ID.AddInteger(VT.V);
ID.AddInteger(VT.getRawBits());
void* IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
@ -3007,7 +3007,7 @@ SDOperand SelectionDAG::getAtomic(unsigned Opcode, SDOperand Chain,
FoldingSetNodeID ID;
SDOperand Ops[] = {Chain, Ptr, Val};
AddNodeIDNode(ID, Opcode, VTs, Ops, 3);
ID.AddInteger(VT.V);
ID.AddInteger(VT.getRawBits());
void* IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
@ -3064,7 +3064,7 @@ SelectionDAG::getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType,
AddNodeIDNode(ID, ISD::LOAD, VTs, Ops, 3);
ID.AddInteger(AM);
ID.AddInteger(ExtType);
ID.AddInteger(EVT.V);
ID.AddInteger(EVT.getRawBits());
ID.AddInteger(Alignment);
ID.AddInteger(isVolatile);
void *IP = 0;
@ -3132,7 +3132,7 @@ SDOperand SelectionDAG::getStore(SDOperand Chain, SDOperand Val,
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(ISD::UNINDEXED);
ID.AddInteger(false);
ID.AddInteger(VT.V);
ID.AddInteger(VT.getRawBits());
ID.AddInteger(Alignment);
ID.AddInteger(isVolatile);
void *IP = 0;
@ -3178,7 +3178,7 @@ SDOperand SelectionDAG::getTruncStore(SDOperand Chain, SDOperand Val,
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(ISD::UNINDEXED);
ID.AddInteger(1);
ID.AddInteger(SVT.V);
ID.AddInteger(SVT.getRawBits());
ID.AddInteger(Alignment);
ID.AddInteger(isVolatile);
void *IP = 0;
@ -3203,7 +3203,7 @@ SelectionDAG::getIndexedStore(SDOperand OrigStore, SDOperand Base,
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(AM);
ID.AddInteger(ST->isTruncatingStore());
ID.AddInteger(ST->getMemoryVT().V);
ID.AddInteger(ST->getMemoryVT().getRawBits());
ID.AddInteger(ST->getAlignment());
ID.AddInteger(ST->isVolatile());
void *IP = 0;