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https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
Add helper function to get a 32-bit floating point constant. No functionality change.
llvm-svn: 56418
This commit is contained in:
Bill Wendling
parent
2e3521d5e6
commit
3ee08ff81e
@ -2738,12 +2738,12 @@ void AddCatchInfo(CallInst &I, MachineModuleInfo *MMI,
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}
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// GetSignificand - Get the significand and build it into a floating-point
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// number with exponent of 1:
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//
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// Op = (Op & 0x007fffff) | 0x3f800000;
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//
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// where Op is the hexidecimal representation of floating point value.
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/// GetSignificand - Get the significand and build it into a floating-point
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/// number with exponent of 1:
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///
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/// Op = (Op & 0x007fffff) | 0x3f800000;
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///
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/// where Op is the hexidecimal representation of floating point value.
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static SDValue
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GetSignificand(SelectionDAG &DAG, SDValue Op) {
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SDValue t1 = DAG.getNode(ISD::AND, MVT::i32, Op,
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@ -2753,11 +2753,11 @@ GetSignificand(SelectionDAG &DAG, SDValue Op) {
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return DAG.getNode(ISD::BIT_CONVERT, MVT::f32, t2);
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}
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// GetExponent - Get the exponent:
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//
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// (float)((Op1 >> 23) - 127);
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//
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// where Op is the hexidecimal representation of floating point value.
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/// GetExponent - Get the exponent:
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///
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/// (float)((Op1 >> 23) - 127);
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///
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/// where Op is the hexidecimal representation of floating point value.
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static SDValue
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GetExponent(SelectionDAG &DAG, SDValue Op) {
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SDValue t1 = DAG.getNode(ISD::SRL, MVT::i32, Op,
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@ -2767,6 +2767,12 @@ GetExponent(SelectionDAG &DAG, SDValue Op) {
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return DAG.getNode(ISD::UINT_TO_FP, MVT::f32, t2);
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}
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/// getF32Constant - Get 32-bit floating point constant.
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static SDValue
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getF32Constant(SelectionDAG &DAG, unsigned Flt) {
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return DAG.getConstantFP(APFloat(APInt(32, Flt)), MVT::f32);
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}
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/// Inlined utility function to implement binary input atomic intrinsics for
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/// visitIntrinsicCall: I is a call instruction
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/// Op is the associated NodeType for I
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@ -2798,8 +2804,7 @@ SelectionDAGLowering::visitExp(CallInst &I) {
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// #define LOG2OFe 1.4426950f
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// IntegerPartOfX = ((int32_t)(X * LOG2OFe));
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, Op,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3fb8aa3b)), MVT::f32));
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getF32Constant(DAG, 0x3fb8aa3b));
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SDValue IntegerPartOfX = DAG.getNode(ISD::FP_TO_SINT, MVT::i32, t0);
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// FractionalPartOfX = (X * LOG2OFe) - (float)IntegerPartOfX;
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@ -2819,15 +2824,12 @@ SelectionDAGLowering::visitExp(CallInst &I) {
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//
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// error 0.0144103317, which is 6 bits
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3e814304)), MVT::f32));
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getF32Constant(DAG, 0x3e814304));
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SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f3c50c8)), MVT::f32));
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getF32Constant(DAG, 0x3f3c50c8));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f7f5e7e)), MVT::f32));
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getF32Constant(DAG, 0x3f7f5e7e));
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SDValue TwoToFracPartOfX = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t5);
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// Add the exponent into the result in integer domain.
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@ -2845,19 +2847,15 @@ SelectionDAGLowering::visitExp(CallInst &I) {
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//
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// 0.000107046256 error, which is 13 to 14 bits
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3da235e3)), MVT::f32));
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getF32Constant(DAG, 0x3da235e3));
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SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3e65b8f3)), MVT::f32));
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getF32Constant(DAG, 0x3e65b8f3));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f324b07)), MVT::f32));
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getF32Constant(DAG, 0x3f324b07));
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SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
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SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f7ff8fd)), MVT::f32));
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getF32Constant(DAG, 0x3f7ff8fd));
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SDValue TwoToFracPartOfX = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t7);
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// Add the exponent into the result in integer domain.
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@ -2878,31 +2876,24 @@ SelectionDAGLowering::visitExp(CallInst &I) {
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//
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// error 2.47208000*10^(-7), which is better than 18 bits
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3924b03e)), MVT::f32));
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getF32Constant(DAG, 0x3924b03e));
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SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3ab24b87)), MVT::f32));
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getF32Constant(DAG, 0x3ab24b87));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3c1d8c17)), MVT::f32));
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getF32Constant(DAG, 0x3c1d8c17));
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SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
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SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3d634a1d)), MVT::f32));
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getF32Constant(DAG, 0x3d634a1d));
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SDValue t8 = DAG.getNode(ISD::FMUL, MVT::f32, t7, X);
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SDValue t9 = DAG.getNode(ISD::FADD, MVT::f32, t8,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3e75fe14)), MVT::f32));
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getF32Constant(DAG, 0x3e75fe14));
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SDValue t10 = DAG.getNode(ISD::FMUL, MVT::f32, t9, X);
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SDValue t11 = DAG.getNode(ISD::FADD, MVT::f32, t10,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f317234)), MVT::f32));
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getF32Constant(DAG, 0x3f317234));
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SDValue t12 = DAG.getNode(ISD::FMUL, MVT::f32, t11, X);
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SDValue t13 = DAG.getNode(ISD::FADD, MVT::f32, t12,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f800000)), MVT::f32));
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getF32Constant(DAG, 0x3f800000));
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SDValue TwoToFracPartOfX = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t13);
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// Add the exponent into the result in integer domain.
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@ -2935,8 +2926,7 @@ SelectionDAGLowering::visitLog(CallInst &I) {
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// Scale the exponent by log(2) [0.69314718f].
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SDValue Exp = GetExponent(DAG, Op1);
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SDValue LogOfExponent = DAG.getNode(ISD::FMUL, MVT::f32, Exp,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f317218)), MVT::f32));
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getF32Constant(DAG, 0x3f317218));
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// Get the significand and build it into a floating-point number with
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// exponent of 1.
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@ -2951,15 +2941,12 @@ SelectionDAGLowering::visitLog(CallInst &I) {
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//
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// error 0.0034276066, which is better than 8 bits
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0xbe74c456)), MVT::f32));
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getF32Constant(DAG, 0xbe74c456));
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SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3fb3a2b1)), MVT::f32));
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getF32Constant(DAG, 0x3fb3a2b1));
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
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SDValue LogOfMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f949a29)), MVT::f32));
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getF32Constant(DAG, 0x3f949a29));
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result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, LogOfMantissa);
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} else if (LimitFloatPrecision > 6 && LimitFloatPrecision <= 12) {
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@ -2973,23 +2960,18 @@ SelectionDAGLowering::visitLog(CallInst &I) {
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//
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// error 0.000061011436, which is 14 bits
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0xbd67b6d6)), MVT::f32));
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getF32Constant(DAG, 0xbd67b6d6));
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SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3ee4f4b8)), MVT::f32));
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getF32Constant(DAG, 0x3ee4f4b8));
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
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SDValue t3 = DAG.getNode(ISD::FSUB, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3fbc278b)), MVT::f32));
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getF32Constant(DAG, 0x3fbc278b));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x40348e95)), MVT::f32));
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getF32Constant(DAG, 0x40348e95));
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SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
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SDValue LogOfMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t6,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3fdef31a)), MVT::f32));
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getF32Constant(DAG, 0x3fdef31a));
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result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, LogOfMantissa);
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} else { // LimitFloatPrecision > 12 && LimitFloatPrecision <= 18
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@ -3005,31 +2987,24 @@ SelectionDAGLowering::visitLog(CallInst &I) {
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//
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// error 0.0000023660568, which is better than 18 bits
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0xbc91e5ac)), MVT::f32));
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getF32Constant(DAG, 0xbc91e5ac));
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SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3e4350aa)), MVT::f32));
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getF32Constant(DAG, 0x3e4350aa));
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
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SDValue t3 = DAG.getNode(ISD::FSUB, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f60d3e3)), MVT::f32));
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getF32Constant(DAG, 0x3f60d3e3));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x4011cdf0)), MVT::f32));
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getF32Constant(DAG, 0x4011cdf0));
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SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
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SDValue t7 = DAG.getNode(ISD::FSUB, MVT::f32, t6,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x406cfd1c)), MVT::f32));
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getF32Constant(DAG, 0x406cfd1c));
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SDValue t8 = DAG.getNode(ISD::FMUL, MVT::f32, t7, X);
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SDValue t9 = DAG.getNode(ISD::FADD, MVT::f32, t8,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x408797cb)), MVT::f32));
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getF32Constant(DAG, 0x408797cb));
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SDValue t10 = DAG.getNode(ISD::FMUL, MVT::f32, t9, X);
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SDValue LogOfMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t10,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x4006dcab)), MVT::f32));
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getF32Constant(DAG, 0x4006dcab));
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result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, LogOfMantissa);
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}
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@ -3070,15 +3045,12 @@ SelectionDAGLowering::visitLog2(CallInst &I) {
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//
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// error 0.0049451742, which is more than 7 bits
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0xbeb08fe0)), MVT::f32));
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getF32Constant(DAG, 0xbeb08fe0));
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SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x40019463)), MVT::f32));
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getF32Constant(DAG, 0x40019463));
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
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SDValue Log2ofMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3fd6633d)), MVT::f32));
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getF32Constant(DAG, 0x3fd6633d));
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result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, Log2ofMantissa);
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} else if (LimitFloatPrecision > 6 && LimitFloatPrecision <= 12) {
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@ -3092,23 +3064,18 @@ SelectionDAGLowering::visitLog2(CallInst &I) {
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//
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// error 0.0000876136000, which is better than 13 bits
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0xbda7262e)), MVT::f32));
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getF32Constant(DAG, 0xbda7262e));
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SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3f25280b)), MVT::f32));
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getF32Constant(DAG, 0x3f25280b));
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
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SDValue t3 = DAG.getNode(ISD::FSUB, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x4007b923)), MVT::f32));
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getF32Constant(DAG, 0x4007b923));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x40823e2f)), MVT::f32));
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getF32Constant(DAG, 0x40823e2f));
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SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
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SDValue Log2ofMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t6,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x4020d29c)), MVT::f32));
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getF32Constant(DAG, 0x4020d29c));
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result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, Log2ofMantissa);
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} else { // LimitFloatPrecision > 12 && LimitFloatPrecision <= 18
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@ -3125,31 +3092,24 @@ SelectionDAGLowering::visitLog2(CallInst &I) {
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//
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// error 0.0000018516, which is better than 18 bits
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SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
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DAG.getConstantFP(APFloat(
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APInt(32, 0xbcd2769e)), MVT::f32));
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getF32Constant(DAG, 0xbcd2769e));
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SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3e8ce0b9)), MVT::f32));
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getF32Constant(DAG, 0x3e8ce0b9));
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SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
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SDValue t3 = DAG.getNode(ISD::FSUB, MVT::f32, t2,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x3fa22ae7)), MVT::f32));
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getF32Constant(DAG, 0x3fa22ae7));
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SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
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SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x40525723)), MVT::f32));
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getF32Constant(DAG, 0x40525723));
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SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
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SDValue t7 = DAG.getNode(ISD::FSUB, MVT::f32, t6,
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DAG.getConstantFP(APFloat(
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APInt(32, 0x40aaf200)), MVT::f32));
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getF32Constant(DAG, 0x40aaf200));
|
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SDValue t8 = DAG.getNode(ISD::FMUL, MVT::f32, t7, X);
|
||||
SDValue t9 = DAG.getNode(ISD::FADD, MVT::f32, t8,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x40c39dad)), MVT::f32));
|
||||
getF32Constant(DAG, 0x40c39dad));
|
||||
SDValue t10 = DAG.getNode(ISD::FMUL, MVT::f32, t9, X);
|
||||
SDValue Log2ofMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t10,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x4042902c)), MVT::f32));
|
||||
getF32Constant(DAG, 0x4042902c));
|
||||
|
||||
result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, Log2ofMantissa);
|
||||
}
|
||||
@ -3176,8 +3136,7 @@ SelectionDAGLowering::visitLog10(CallInst &I) {
|
||||
// Scale the exponent by log10(2) [0.30102999f].
|
||||
SDValue Exp = GetExponent(DAG, Op1);
|
||||
SDValue LogOfExponent = DAG.getNode(ISD::FMUL, MVT::f32, Exp,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e9a209a)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e9a209a));
|
||||
|
||||
// Get the significand and build it into a floating-point number with
|
||||
// exponent of 1.
|
||||
@ -3192,15 +3151,12 @@ SelectionDAGLowering::visitLog10(CallInst &I) {
|
||||
//
|
||||
// error 0.0014886165, which is 6 bits
|
||||
SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0xbdd49a13)), MVT::f32));
|
||||
getF32Constant(DAG, 0xbdd49a13));
|
||||
SDValue t1 = DAG.getNode(ISD::FADD, MVT::f32, t0,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f1c0789)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f1c0789));
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
|
||||
SDValue Log10ofMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f011300)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f011300));
|
||||
|
||||
result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, Log10ofMantissa);
|
||||
} else if (LimitFloatPrecision > 6 && LimitFloatPrecision <= 12) {
|
||||
@ -3213,19 +3169,15 @@ SelectionDAGLowering::visitLog10(CallInst &I) {
|
||||
//
|
||||
// error 0.00019228036, which is better than 12 bits
|
||||
SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3d431f31)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3d431f31));
|
||||
SDValue t1 = DAG.getNode(ISD::FSUB, MVT::f32, t0,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3ea21fb2)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3ea21fb2));
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f6ae232)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f6ae232));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue Log10ofMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f25f7c3)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f25f7c3));
|
||||
|
||||
result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, Log10ofMantissa);
|
||||
} else { // LimitFloatPrecision > 12 && LimitFloatPrecision <= 18
|
||||
@ -3240,27 +3192,21 @@ SelectionDAGLowering::visitLog10(CallInst &I) {
|
||||
//
|
||||
// error 0.0000037995730, which is better than 18 bits
|
||||
SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3c5d51ce)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3c5d51ce));
|
||||
SDValue t1 = DAG.getNode(ISD::FSUB, MVT::f32, t0,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e00685a)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e00685a));
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, t1, X);
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3efb6798)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3efb6798));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FSUB, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f88d192)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f88d192));
|
||||
SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
|
||||
SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3fc4316c)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3fc4316c));
|
||||
SDValue t8 = DAG.getNode(ISD::FMUL, MVT::f32, t7, X);
|
||||
SDValue Log10ofMantissa = DAG.getNode(ISD::FSUB, MVT::f32, t8,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f57ce70)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f57ce70));
|
||||
|
||||
result = DAG.getNode(ISD::FADD, MVT::f32, LogOfExponent, Log10ofMantissa);
|
||||
}
|
||||
@ -3303,15 +3249,12 @@ SelectionDAGLowering::visitExp2(CallInst &I) {
|
||||
//
|
||||
// error 0.0144103317, which is 6 bits
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e814304)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e814304));
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f3c50c8)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f3c50c8));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f7f5e7e)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f7f5e7e));
|
||||
SDValue t6 = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t5);
|
||||
SDValue TwoToFractionalPartOfX =
|
||||
DAG.getNode(ISD::ADD, MVT::i32, t6, IntegerPartOfX);
|
||||
@ -3327,19 +3270,15 @@ SelectionDAGLowering::visitExp2(CallInst &I) {
|
||||
//
|
||||
// error 0.000107046256, which is 13 to 14 bits
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3da235e3)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3da235e3));
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e65b8f3)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e65b8f3));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f324b07)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f324b07));
|
||||
SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
|
||||
SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f7ff8fd)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f7ff8fd));
|
||||
SDValue t8 = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t7);
|
||||
SDValue TwoToFractionalPartOfX =
|
||||
DAG.getNode(ISD::ADD, MVT::i32, t8, IntegerPartOfX);
|
||||
@ -3357,31 +3296,24 @@ SelectionDAGLowering::visitExp2(CallInst &I) {
|
||||
// (0.136028312e-2f + 0.157059148e-3f *x)*x)*x)*x)*x)*x;
|
||||
// error 2.47208000*10^(-7), which is better than 18 bits
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3924b03e)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3924b03e));
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3ab24b87)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3ab24b87));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3c1d8c17)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3c1d8c17));
|
||||
SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
|
||||
SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3d634a1d)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3d634a1d));
|
||||
SDValue t8 = DAG.getNode(ISD::FMUL, MVT::f32, t7, X);
|
||||
SDValue t9 = DAG.getNode(ISD::FADD, MVT::f32, t8,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e75fe14)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e75fe14));
|
||||
SDValue t10 = DAG.getNode(ISD::FMUL, MVT::f32, t9, X);
|
||||
SDValue t11 = DAG.getNode(ISD::FADD, MVT::f32, t10,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f317234)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f317234));
|
||||
SDValue t12 = DAG.getNode(ISD::FMUL, MVT::f32, t11, X);
|
||||
SDValue t13 = DAG.getNode(ISD::FADD, MVT::f32, t12,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f800000)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f800000));
|
||||
SDValue t14 = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t13);
|
||||
SDValue TwoToFractionalPartOfX =
|
||||
DAG.getNode(ISD::ADD, MVT::i32, t14, IntegerPartOfX);
|
||||
@ -3426,8 +3358,7 @@ SelectionDAGLowering::visitPow(CallInst &I) {
|
||||
// #define LOG2OF10 3.3219281f
|
||||
// IntegerPartOfX = (int32_t)(x * LOG2OF10);
|
||||
SDValue t0 = DAG.getNode(ISD::FMUL, MVT::f32, Op,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x40549a78)), MVT::f32));
|
||||
getF32Constant(DAG, 0x40549a78));
|
||||
SDValue IntegerPartOfX = DAG.getNode(ISD::FP_TO_SINT, MVT::i32, t0);
|
||||
|
||||
// FractionalPartOfX = x - (float)IntegerPartOfX;
|
||||
@ -3447,15 +3378,12 @@ SelectionDAGLowering::visitPow(CallInst &I) {
|
||||
//
|
||||
// error 0.0144103317, which is 6 bits
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e814304)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e814304));
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f3c50c8)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f3c50c8));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f7f5e7e)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f7f5e7e));
|
||||
SDValue t6 = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t5);
|
||||
SDValue TwoToFractionalPartOfX =
|
||||
DAG.getNode(ISD::ADD, MVT::i32, t6, IntegerPartOfX);
|
||||
@ -3471,19 +3399,15 @@ SelectionDAGLowering::visitPow(CallInst &I) {
|
||||
//
|
||||
// error 0.000107046256, which is 13 to 14 bits
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3da235e3)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3da235e3));
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e65b8f3)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e65b8f3));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f324b07)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f324b07));
|
||||
SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
|
||||
SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f7ff8fd)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f7ff8fd));
|
||||
SDValue t8 = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t7);
|
||||
SDValue TwoToFractionalPartOfX =
|
||||
DAG.getNode(ISD::ADD, MVT::i32, t8, IntegerPartOfX);
|
||||
@ -3501,31 +3425,24 @@ SelectionDAGLowering::visitPow(CallInst &I) {
|
||||
// (0.136028312e-2f + 0.157059148e-3f *x)*x)*x)*x)*x)*x;
|
||||
// error 2.47208000*10^(-7), which is better than 18 bits
|
||||
SDValue t2 = DAG.getNode(ISD::FMUL, MVT::f32, X,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3924b03e)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3924b03e));
|
||||
SDValue t3 = DAG.getNode(ISD::FADD, MVT::f32, t2,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3ab24b87)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3ab24b87));
|
||||
SDValue t4 = DAG.getNode(ISD::FMUL, MVT::f32, t3, X);
|
||||
SDValue t5 = DAG.getNode(ISD::FADD, MVT::f32, t4,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3c1d8c17)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3c1d8c17));
|
||||
SDValue t6 = DAG.getNode(ISD::FMUL, MVT::f32, t5, X);
|
||||
SDValue t7 = DAG.getNode(ISD::FADD, MVT::f32, t6,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3d634a1d)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3d634a1d));
|
||||
SDValue t8 = DAG.getNode(ISD::FMUL, MVT::f32, t7, X);
|
||||
SDValue t9 = DAG.getNode(ISD::FADD, MVT::f32, t8,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3e75fe14)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3e75fe14));
|
||||
SDValue t10 = DAG.getNode(ISD::FMUL, MVT::f32, t9, X);
|
||||
SDValue t11 = DAG.getNode(ISD::FADD, MVT::f32, t10,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f317234)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f317234));
|
||||
SDValue t12 = DAG.getNode(ISD::FMUL, MVT::f32, t11, X);
|
||||
SDValue t13 = DAG.getNode(ISD::FADD, MVT::f32, t12,
|
||||
DAG.getConstantFP(APFloat(
|
||||
APInt(32, 0x3f800000)), MVT::f32));
|
||||
getF32Constant(DAG, 0x3f800000));
|
||||
SDValue t14 = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, t13);
|
||||
SDValue TwoToFractionalPartOfX =
|
||||
DAG.getNode(ISD::ADD, MVT::i32, t14, IntegerPartOfX);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user