Add hooks for other intrinsics to get low-precision expansions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55845 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index e7838e4..c7e2cd5 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -2753,6 +2753,58 @@
return 0;
}
+/// visitExp - lower an exp intrinsic. Handles the special sequences
+/// for limited-precision mode.
+
+void
+SelectionDAGLowering::visitExp(CallInst &I) {
+ SDValue result;
+ // No special expansion.
+ result = DAG.getNode(ISD::FEXP,
+ getValue(I.getOperand(1)).getValueType(),
+ getValue(I.getOperand(1)));
+ setValue(&I, result);
+}
+
+/// visitLog - lower a log intrinsic. Handles the special sequences
+/// for limited-precision mode.
+
+void
+SelectionDAGLowering::visitLog(CallInst &I) {
+ SDValue result;
+ // No special expansion.
+ result = DAG.getNode(ISD::FLOG,
+ getValue(I.getOperand(1)).getValueType(),
+ getValue(I.getOperand(1)));
+ setValue(&I, result);
+}
+
+/// visitLog2 - lower a log2 intrinsic. Handles the special sequences
+/// for limited-precision mode.
+
+void
+SelectionDAGLowering::visitLog2(CallInst &I) {
+ SDValue result;
+ // No special expansion.
+ result = DAG.getNode(ISD::FLOG2,
+ getValue(I.getOperand(1)).getValueType(),
+ getValue(I.getOperand(1)));
+ setValue(&I, result);
+}
+
+/// visitLog10 - lower a log10 intrinsic. Handles the special sequences
+/// for limited-precision mode.
+
+void
+SelectionDAGLowering::visitLog10(CallInst &I) {
+ SDValue result;
+ // No special expansion.
+ result = DAG.getNode(ISD::FLOG10,
+ getValue(I.getOperand(1)).getValueType(),
+ getValue(I.getOperand(1)));
+ setValue(&I, result);
+}
+
/// visitExp2 - lower an exp2 intrinsic. Handles the special sequences
/// for limited-precision mode.
@@ -3071,24 +3123,16 @@
getValue(I.getOperand(1))));
return 0;
case Intrinsic::log:
- setValue(&I, DAG.getNode(ISD::FLOG,
- getValue(I.getOperand(1)).getValueType(),
- getValue(I.getOperand(1))));
+ visitLog(I);
return 0;
case Intrinsic::log2:
- setValue(&I, DAG.getNode(ISD::FLOG2,
- getValue(I.getOperand(1)).getValueType(),
- getValue(I.getOperand(1))));
+ visitLog2(I);
return 0;
case Intrinsic::log10:
- setValue(&I, DAG.getNode(ISD::FLOG10,
- getValue(I.getOperand(1)).getValueType(),
- getValue(I.getOperand(1))));
+ visitLog10(I);
return 0;
case Intrinsic::exp:
- setValue(&I, DAG.getNode(ISD::FEXP,
- getValue(I.getOperand(1)).getValueType(),
- getValue(I.getOperand(1))));
+ visitExp(I);
return 0;
case Intrinsic::exp2:
visitExp2(I);