setValue(&I, result);
}
-/// visitLog - Lower a log intrinsic. Handles the special sequences for
+/// expandLog - Lower a log intrinsic. Handles the special sequences for
/// limited-precision mode.
-void
-SelectionDAGBuilder::visitLog(const CallInst &I) {
- SDValue result;
- DebugLoc dl = getCurDebugLoc();
-
- if (getValue(I.getArgOperand(0)).getValueType() == MVT::f32 &&
+static SDValue expandLog(DebugLoc dl, SDValue Op, SelectionDAG &DAG,
+ const TargetLowering &TLI) {
+ if (Op.getValueType() == MVT::f32 &&
LimitFloatPrecision > 0 && LimitFloatPrecision <= 18) {
- SDValue Op = getValue(I.getArgOperand(0));
SDValue Op1 = DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op);
// Scale the exponent by log(2) [0.69314718f].
getF32Constant(DAG, 0x4006dcab));
}
- result = DAG.getNode(ISD::FADD, dl,
- MVT::f32, LogOfExponent, LogOfMantissa);
- } else {
- // No special expansion.
- result = DAG.getNode(ISD::FLOG, dl,
- getValue(I.getArgOperand(0)).getValueType(),
- getValue(I.getArgOperand(0)));
+ return DAG.getNode(ISD::FADD, dl, MVT::f32, LogOfExponent, LogOfMantissa);
}
- setValue(&I, result);
+ // No special expansion.
+ return DAG.getNode(ISD::FLOG, dl, Op.getValueType(), Op);
}
-/// visitLog2 - Lower a log2 intrinsic. Handles the special sequences for
+/// expandLog2 - Lower a log2 intrinsic. Handles the special sequences for
/// limited-precision mode.
-void
-SelectionDAGBuilder::visitLog2(const CallInst &I) {
- SDValue result;
- DebugLoc dl = getCurDebugLoc();
-
- if (getValue(I.getArgOperand(0)).getValueType() == MVT::f32 &&
+static SDValue expandLog2(DebugLoc dl, SDValue Op, SelectionDAG &DAG,
+ const TargetLowering &TLI) {
+ if (Op.getValueType() == MVT::f32 &&
LimitFloatPrecision > 0 && LimitFloatPrecision <= 18) {
- SDValue Op = getValue(I.getArgOperand(0));
SDValue Op1 = DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op);
// Get the exponent.
getF32Constant(DAG, 0x4042902c));
}
- result = DAG.getNode(ISD::FADD, dl,
- MVT::f32, LogOfExponent, Log2ofMantissa);
- } else {
- // No special expansion.
- result = DAG.getNode(ISD::FLOG2, dl,
- getValue(I.getArgOperand(0)).getValueType(),
- getValue(I.getArgOperand(0)));
+ return DAG.getNode(ISD::FADD, dl, MVT::f32, LogOfExponent, Log2ofMantissa);
}
- setValue(&I, result);
+ // No special expansion.
+ return DAG.getNode(ISD::FLOG2, dl, Op.getValueType(), Op);
}
-/// visitLog10 - Lower a log10 intrinsic. Handles the special sequences for
+/// expandLog10 - Lower a log10 intrinsic. Handles the special sequences for
/// limited-precision mode.
-void
-SelectionDAGBuilder::visitLog10(const CallInst &I) {
- SDValue result;
- DebugLoc dl = getCurDebugLoc();
-
- if (getValue(I.getArgOperand(0)).getValueType() == MVT::f32 &&
+static SDValue expandLog10(DebugLoc dl, SDValue Op, SelectionDAG &DAG,
+ const TargetLowering &TLI) {
+ if (Op.getValueType() == MVT::f32 &&
LimitFloatPrecision > 0 && LimitFloatPrecision <= 18) {
- SDValue Op = getValue(I.getArgOperand(0));
SDValue Op1 = DAG.getNode(ISD::BITCAST, dl, MVT::i32, Op);
// Scale the exponent by log10(2) [0.30102999f].
getF32Constant(DAG, 0x3f57ce70));
}
- result = DAG.getNode(ISD::FADD, dl,
- MVT::f32, LogOfExponent, Log10ofMantissa);
- } else {
- // No special expansion.
- result = DAG.getNode(ISD::FLOG10, dl,
- getValue(I.getArgOperand(0)).getValueType(),
- getValue(I.getArgOperand(0)));
+ return DAG.getNode(ISD::FADD, dl, MVT::f32, LogOfExponent, Log10ofMantissa);
}
- setValue(&I, result);
+ // No special expansion.
+ return DAG.getNode(ISD::FLOG10, dl, Op.getValueType(), Op);
}
/// visitExp2 - Lower an exp2 intrinsic. Handles the special sequences for
getValue(I.getArgOperand(1)), DAG));
return 0;
case Intrinsic::log:
- visitLog(I);
+ setValue(&I, expandLog(dl, getValue(I.getArgOperand(0)), DAG, TLI));
return 0;
case Intrinsic::log2:
- visitLog2(I);
+ setValue(&I, expandLog2(dl, getValue(I.getArgOperand(0)), DAG, TLI));
return 0;
case Intrinsic::log10:
- visitLog10(I);
+ setValue(&I, expandLog10(dl, getValue(I.getArgOperand(0)), DAG, TLI));
return 0;
case Intrinsic::exp:
visitExp(I);