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Refactor a bit to make some helper functions static.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168524 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2012-11-23 18:38:31 +00:00
parent 985884caf9
commit 5d1e089eaa
2 changed files with 24 additions and 54 deletions
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75
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -3813,16 +3813,12 @@ SelectionDAGBuilder::visitExp(const CallInst &I) {
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].
@ -3906,28 +3902,19 @@ SelectionDAGBuilder::visitLog(const CallInst &I) {
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.
@ -4010,28 +3997,19 @@ SelectionDAGBuilder::visitLog2(const CallInst &I) {
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].
@ -4107,16 +4085,11 @@ SelectionDAGBuilder::visitLog10(const CallInst &I) {
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
@ -4939,13 +4912,13 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
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);

3
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
View File

@ -536,9 +536,6 @@ private:
void visitPow(const CallInst &I);
void visitExp2(const CallInst &I);
void visitExp(const CallInst &I);
void visitLog(const CallInst &I);
void visitLog2(const CallInst &I);
void visitLog10(const CallInst &I);
void visitVAStart(const CallInst &I);
void visitVAArg(const VAArgInst &I);