diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 80 |
1 files changed, 62 insertions, 18 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index bb1dc17b7a1..c7f31828e21 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -3932,6 +3932,8 @@ void SelectionDAGLegalize::ConvertNodeToLibcall(SDNode *Node) { DEBUG(dbgs() << "Trying to convert node to libcall\n"); SmallVector<SDValue, 8> Results; SDLoc dl(Node); + // FIXME: Check flags on the node to see if we can use a finite call. + bool CanUseFiniteLibCall = TM.Options.NoInfsFPMath && TM.Options.NoNaNsFPMath; unsigned Opc = Node->getOpcode(); switch (Opc) { case ISD::ATOMIC_FENCE: { @@ -4026,33 +4028,68 @@ void SelectionDAGLegalize::ConvertNodeToLibcall(SDNode *Node) { break; case ISD::FLOG: case ISD::STRICT_FLOG: - Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG_F32, RTLIB::LOG_F64, - RTLIB::LOG_F80, RTLIB::LOG_F128, - RTLIB::LOG_PPCF128)); + if (CanUseFiniteLibCall && DAG.getLibInfo().has(LibFunc_log_finite)) + Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG_FINITE_F32, + RTLIB::LOG_FINITE_F64, + RTLIB::LOG_FINITE_F80, + RTLIB::LOG_FINITE_F128, + RTLIB::LOG_FINITE_PPCF128)); + else + Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG_F32, RTLIB::LOG_F64, + RTLIB::LOG_F80, RTLIB::LOG_F128, + RTLIB::LOG_PPCF128)); break; case ISD::FLOG2: case ISD::STRICT_FLOG2: - Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG2_F32, RTLIB::LOG2_F64, - RTLIB::LOG2_F80, RTLIB::LOG2_F128, - RTLIB::LOG2_PPCF128)); + if (CanUseFiniteLibCall && DAG.getLibInfo().has(LibFunc_log2_finite)) + Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG2_FINITE_F32, + RTLIB::LOG2_FINITE_F64, + RTLIB::LOG2_FINITE_F80, + RTLIB::LOG2_FINITE_F128, + RTLIB::LOG2_FINITE_PPCF128)); + else + Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG2_F32, RTLIB::LOG2_F64, + RTLIB::LOG2_F80, RTLIB::LOG2_F128, + RTLIB::LOG2_PPCF128)); break; case ISD::FLOG10: case ISD::STRICT_FLOG10: - Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG10_F32, RTLIB::LOG10_F64, - RTLIB::LOG10_F80, RTLIB::LOG10_F128, - RTLIB::LOG10_PPCF128)); + if (CanUseFiniteLibCall && DAG.getLibInfo().has(LibFunc_log10_finite)) + Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG10_FINITE_F32, + RTLIB::LOG10_FINITE_F64, + RTLIB::LOG10_FINITE_F80, + RTLIB::LOG10_FINITE_F128, + RTLIB::LOG10_FINITE_PPCF128)); + else + Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG10_F32, RTLIB::LOG10_F64, + RTLIB::LOG10_F80, RTLIB::LOG10_F128, + RTLIB::LOG10_PPCF128)); break; case ISD::FEXP: case ISD::STRICT_FEXP: - Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP_F32, RTLIB::EXP_F64, - RTLIB::EXP_F80, RTLIB::EXP_F128, - RTLIB::EXP_PPCF128)); + if (CanUseFiniteLibCall && DAG.getLibInfo().has(LibFunc_exp_finite)) + Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP_FINITE_F32, + RTLIB::EXP_FINITE_F64, + RTLIB::EXP_FINITE_F80, + RTLIB::EXP_FINITE_F128, + RTLIB::EXP_FINITE_PPCF128)); + else + Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP_F32, RTLIB::EXP_F64, + RTLIB::EXP_F80, RTLIB::EXP_F128, + RTLIB::EXP_PPCF128)); break; case ISD::FEXP2: case ISD::STRICT_FEXP2: - Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP2_F32, RTLIB::EXP2_F64, - RTLIB::EXP2_F80, RTLIB::EXP2_F128, - RTLIB::EXP2_PPCF128)); + if (CanUseFiniteLibCall && DAG.getLibInfo().has(LibFunc_exp2_finite)) + Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP2_FINITE_F32, + RTLIB::EXP2_FINITE_F64, + RTLIB::EXP2_FINITE_F80, + RTLIB::EXP2_FINITE_F128, + RTLIB::EXP2_FINITE_PPCF128)); + else + Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP2_F32, RTLIB::EXP2_F64, + RTLIB::EXP2_F80, RTLIB::EXP2_F128, + RTLIB::EXP2_PPCF128)); break; case ISD::FTRUNC: Results.push_back(ExpandFPLibCall(Node, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, @@ -4098,9 +4135,16 @@ void SelectionDAGLegalize::ConvertNodeToLibcall(SDNode *Node) { break; case ISD::FPOW: case ISD::STRICT_FPOW: - Results.push_back(ExpandFPLibCall(Node, RTLIB::POW_F32, RTLIB::POW_F64, - RTLIB::POW_F80, RTLIB::POW_F128, - RTLIB::POW_PPCF128)); + if (CanUseFiniteLibCall && DAG.getLibInfo().has(LibFunc_pow_finite)) + Results.push_back(ExpandFPLibCall(Node, RTLIB::POW_FINITE_F32, + RTLIB::POW_FINITE_F64, + RTLIB::POW_FINITE_F80, + RTLIB::POW_FINITE_F128, + RTLIB::POW_FINITE_PPCF128)); + else + Results.push_back(ExpandFPLibCall(Node, RTLIB::POW_F32, RTLIB::POW_F64, + RTLIB::POW_F80, RTLIB::POW_F128, + RTLIB::POW_PPCF128)); break; case ISD::FDIV: Results.push_back(ExpandFPLibCall(Node, RTLIB::DIV_F32, RTLIB::DIV_F64, |
