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[DAG] ExpandLegalINT_TO_FP - pull out repeated getValueType() call. NFCI.

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llvm-svn: 343101
This commit is contained in:
Simon Pilgrim 2018-09-26 12:42:19 +00:00
parent a1abfc12f3
commit 49c67e6a8b
1 changed files with 9 additions and 9 deletions
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18
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -2301,9 +2301,11 @@ SelectionDAGLegalize::ExpandSinCosLibCall(SDNode *Node,
SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDValue Op0,
EVT DestVT,
const SDLoc &dl) {
EVT SrcVT = Op0.getValueType();
// TODO: Should any fast-math-flags be set for the created nodes?
LLVM_DEBUG(dbgs() << "Legalizing INT_TO_FP\n");
if (Op0.getValueType() == MVT::i32 && TLI.isTypeLegal(MVT::f64)) {
if (SrcVT == MVT::i32 && TLI.isTypeLegal(MVT::f64)) {
LLVM_DEBUG(dbgs() << "32-bit [signed|unsigned] integer to float/double "
"expansion\n");
@ -2369,7 +2371,7 @@ SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDValue Op0,
// of performing rounding correctly, both in the default rounding mode
// and in all alternate rounding modes.
// TODO: Generalize this for use with other types.
if (Op0.getValueType() == MVT::i64 && DestVT == MVT::f64) {
if (SrcVT == MVT::i64 && DestVT == MVT::f64) {
LLVM_DEBUG(dbgs() << "Converting unsigned i64 to f64\n");
SDValue TwoP52 =
DAG.getConstant(UINT64_C(0x4330000000000000), dl, MVT::i64);
@ -2392,7 +2394,7 @@ SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDValue Op0,
}
// TODO: Generalize this for use with other types.
if (Op0.getValueType() == MVT::i64 && DestVT == MVT::f32) {
if (SrcVT == MVT::i64 && DestVT == MVT::f32) {
LLVM_DEBUG(dbgs() << "Converting unsigned i64 to f32\n");
// For unsigned conversions, convert them to signed conversions using the
// algorithm from the x86_64 __floatundidf in compiler_rt.
@ -2400,7 +2402,7 @@ SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDValue Op0,
SDValue Fast = DAG.getNode(ISD::SINT_TO_FP, dl, MVT::f32, Op0);
SDValue ShiftConst = DAG.getConstant(
1, dl, TLI.getShiftAmountTy(Op0.getValueType(), DAG.getDataLayout()));
1, dl, TLI.getShiftAmountTy(SrcVT, DAG.getDataLayout()));
SDValue Shr = DAG.getNode(ISD::SRL, dl, MVT::i64, Op0, ShiftConst);
SDValue AndConst = DAG.getConstant(1, dl, MVT::i64);
SDValue And = DAG.getNode(ISD::AND, dl, MVT::i64, Op0, AndConst);
@ -2454,10 +2456,8 @@ SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDValue Op0,
SDValue Tmp1 = DAG.getNode(ISD::SINT_TO_FP, dl, DestVT, Op0);
SDValue SignSet = DAG.getSetCC(dl, getSetCCResultType(Op0.getValueType()),
Op0,
DAG.getConstant(0, dl, Op0.getValueType()),
ISD::SETLT);
SDValue SignSet = DAG.getSetCC(dl, getSetCCResultType(SrcVT), Op0,
DAG.getConstant(0, dl, SrcVT), ISD::SETLT);
SDValue Zero = DAG.getIntPtrConstant(0, dl),
Four = DAG.getIntPtrConstant(4, dl);
SDValue CstOffset = DAG.getSelect(dl, Zero.getValueType(),
@ -2467,7 +2467,7 @@ SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDValue Op0,
// as a negative number. To counteract this, the dynamic code adds an
// offset depending on the data type.
uint64_t FF;
switch (Op0.getSimpleValueType().SimpleTy) {
switch (SrcVT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("Unsupported integer type!");
case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float)
case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float)