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Make some fixed arrays const. Use array_lengthof in a couple places instead of a hardcoded number. 

llvm-svn: 155294
This commit is contained in:
Craig Topper 2012-04-21 18:58:38 +00:00
parent 84973e56e3
commit 6eadae8e60
1 changed files with 8 additions and 8 deletions
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14
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -162,7 +162,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
TD = getTargetData();
// Set up the TargetLowering object.
static MVT IntVTs[] = { MVT::i8, MVT::i16, MVT::i32, MVT::i64 };
static const MVT IntVTs[] = { MVT::i8, MVT::i16, MVT::i32, MVT::i64 };
// X86 is weird, it always uses i8 for shift amounts and setcc results.
setBooleanContents(ZeroOrOneBooleanContent);
@ -345,7 +345,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
// (low) operations are left as Legal, as there are single-result
// instructions for this in x86. Using the two-result multiply instructions
// when both high and low results are needed must be arranged by dagcombine.
for (unsigned i = 0, e = 4; i != e; ++i) {
for (unsigned i = 0; i != array_lengthof(IntVTs); ++i) {
MVT VT = IntVTs[i];
setOperationAction(ISD::MULHS, VT, Expand);
setOperationAction(ISD::MULHU, VT, Expand);
@ -492,7 +492,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
setShouldFoldAtomicFences(true);
// Expand certain atomics
for (unsigned i = 0, e = 4; i != e; ++i) {
for (unsigned i = 0; i != array_lengthof(IntVTs); ++i) {
MVT VT = IntVTs[i];
setOperationAction(ISD::ATOMIC_CMP_SWAP, VT, Custom);
setOperationAction(ISD::ATOMIC_LOAD_SUB, VT, Custom);
@ -13043,7 +13043,7 @@ SDValue X86TargetLowering::PerformTruncateCombine(SDNode *N, SelectionDAG &DAG,
OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpHi);
// PSHUFD
int ShufMask1[] = {0, 2, 0, 0};
static const int ShufMask1[] = {0, 2, 0, 0};
OpLo = DAG.getVectorShuffle(VT, dl, OpLo, DAG.getUNDEF(VT),
ShufMask1);
@ -13051,7 +13051,7 @@ SDValue X86TargetLowering::PerformTruncateCombine(SDNode *N, SelectionDAG &DAG,
ShufMask1);
// MOVLHPS
int ShufMask2[] = {0, 1, 4, 5};
static const int ShufMask2[] = {0, 1, 4, 5};
return DAG.getVectorShuffle(VT, dl, OpLo, OpHi, ShufMask2);
}
@ -13067,7 +13067,7 @@ SDValue X86TargetLowering::PerformTruncateCombine(SDNode *N, SelectionDAG &DAG,
OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v16i8, OpHi);
// PSHUFB
int ShufMask1[] = {0, 1, 4, 5, 8, 9, 12, 13,
static const int ShufMask1[] = {0, 1, 4, 5, 8, 9, 12, 13,
-1, -1, -1, -1, -1, -1, -1, -1};
OpLo = DAG.getVectorShuffle(MVT::v16i8, dl, OpLo,
@ -13081,7 +13081,7 @@ SDValue X86TargetLowering::PerformTruncateCombine(SDNode *N, SelectionDAG &DAG,
OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpHi);
// MOVLHPS
int ShufMask2[] = {0, 1, 4, 5};
static const int ShufMask2[] = {0, 1, 4, 5};
SDValue res = DAG.getVectorShuffle(MVT::v4i32, dl, OpLo, OpHi, ShufMask2);
return DAG.getNode(ISD::BITCAST, dl, MVT::v8i16, res);